chemical reaction Crossword Puzzles

ch-1 2019-10-03

ch-1 crossword puzzle
Across
  1. reaction Reduction + oxidation
  2. Change in food taste and odour
  3. displacement reaction Both the rectants displaces the other.
  4. EQUATION REPRESENTATION OF A REACTION
  5. Reaction Splitting of reactants into products
  6. reaction Heat required for reaction
Down
  1. Parts of a chemical reaction
  2. reaction Rearrangement of reactants from their actual place.
  3. reaction of metal with air and water
  4. chemical equation Reaction with equal number of entities
  5. reaction Heat released from reaction
  6. Parts of a chemical reacation
  7. reaction Two or more reactants combines to form products.

13 Clues: Parts of a chemical reaction • Parts of a chemical reacation • reaction Reduction + oxidation • Change in food taste and odour • reaction Heat required for reaction • reaction of metal with air and water • reaction Heat released from reaction • EQUATION REPRESENTATION OF A REACTION • Reaction Splitting of reactants into products • ...

Chemistry Crossword 2017-11-07

Chemistry Crossword crossword puzzle
Across
  1. chemical combination of two or more elements in a specific ratio.
  2. invisible negatively charged particle that orbits the nucleus of an atom
  3. chemical reaction that takes place in cells.
  4. chemical reaction that absorbs energy.
  5. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy.
  6. change of state from a liquid to a gas.
  7. orbit of electrons around the nucleus of an atom.
  8. pure substance that cannot be broken down into other substances, substance made up of only one type of atom.
  9. principle that matter is not created or destroyed in a chemical reaction, the mass of the products always equals the mass of the reactants.
  10. the smallest part of an element that is representative of that element.
Down
  1. combination of symbols that represent a compound.
  2. a reaction that takes place when two or more substances react to form new substances.
  3. change that results when two or more substances react to create a different substance, the new substance have completely different properties from the original one.
  4. number of protons in the nucleus of one atom of an element.
  5. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance.
  6. measure of atomic mass 1 amu is equal to 1/12th of an atom.
  7. group 2 elements in the periodic table.
  8. substances that helps a chemical reaction to proceed more quickly.
  9. chemical reaction that releases energy.
  10. description of how a substance interacts with other substances.
  11. catalyst involved in chemical reaction in living things.
  12. slow chemical change that occurs when oxygen in the air reacts with a metal.
  13. group 1 elements in the periodic table, not including hydrogen.
  14. an experiment in which all reactants and all products of a chemical reaction are accounted for.
  15. ability of a substance to conduct electricity or heat.
  16. mass of one atom of an element calculated from the total number of protons neutrons and electrons.

26 Clues: chemical reaction that absorbs energy. • group 2 elements in the periodic table. • chemical reaction that releases energy. • change of state from a liquid to a gas. • chemical reaction that takes place in cells. • combination of symbols that represent a compound. • orbit of electrons around the nucleus of an atom. • ...

CR TEST REVIEW 2025-12-15

CR TEST REVIEW crossword puzzle
Across
  1. Observations that show a reaction occurred
  2. Thermal energy transferred between objects
  3. Evidence that substances have changed into new substances
  4. Substance formed after a chemical reaction
  5. Evidence involving gas, precipitate, or color change
  6. Evidence of a chemical reaction involving bubbles
  7. Solids formed during a reaction in solution
  8. The part of the universe being studied
  9. A reaction that absorbs heat energy
  10. Evidence of a chemical reaction involving a change in color
  11. Takes in energy during a reaction
  12. When atoms rearrange, they form these substances
  13. When atoms rearrange, their connections change
  14. A change where the substance stays the same
  15. The smallest unit of an element
  16. A system where matter cannot enter or leave
  17. A comparison group in an experiment
  18. A change where a new substance forms
  19. A sign of gas formation
  20. The principle that matter is not created or destroyed
  21. A system where matter can escape
Down
  1. A measure of average kinetic energy
  2. The standard used for comparison in experiments
  3. Substance present before a chemical reaction
  4. A reaction that produces new substances
  5. Gives off energy during a reaction
  6. The law stating matter is not created or destroyed
  7. A change where no new substance forms
  8. Two or more atoms bonded together
  9. When total mass stays the same before and after a reaction
  10. A solid that forms when two liquids react
  11. The ability to cause change or do work
  12. A reaction that releases heat energy
  13. A first model of a solution used in engineering
  14. The amount of matter in an object
  15. Mixing salt and water without forming a new substance is this type of change
  16. Anything that has mass and takes up space

37 Clues: A sign of gas formation • The smallest unit of an element • A system where matter can escape • Two or more atoms bonded together • Takes in energy during a reaction • The amount of matter in an object • Gives off energy during a reaction • A measure of average kinetic energy • A reaction that absorbs heat energy • A comparison group in an experiment • ...

STOICHIOMETRY 2015-02-16

STOICHIOMETRY crossword puzzle
Across
  1. THE STATE OF THE MATTER: SOLID, LIQUID, OR GAS
  2. IN A CHEMICAL REACTION, THE REACTANT IS THE STARTING CHEMICAL(S). IT APPEARS TO THE RIGHT OF AN ARROW IN AN EQUATION.
  3. WHEN A CHEMICAL REACTION IS COMPLETED, THIS IS THE AMOUNT OF PRODUCT THAT YOU ACTUALLY MAKE
  4. A SCIENTIFIC PRINCIPLE THAT STATES THAT MATTER CANNOT BE CREATED NOR DESTROYED
  5. THE MASS OF AN ATOM EXPRESSED IN AMU
  6. A PROCESS THAT CONVERTS ONE OR MORE CHEMICALS INTO A DIFFERENT CHEMICAL(S)
  7. EXTREMELY SMALL; VISIBLE WITH A MICROSCOPE
  8. A GROUP OF ATOMS BONDED TOGETHER
  9. THE MASS IN ONE MOLE OF A SUBSTANCE
Down
  1. VISIBLE TO THE NAKED, OR UNAIDED, EYE
  2. THE ACTUAL YIELD OF A CHEMICAL REACTION DIVIDED BY THE THEORETICAL YIELD TIMES 100%
  3. IN A CHEMICAL REACTION, THE PRODUCT IS THE STARTING CHEMICAL(S). IT APPEARS TO THE LEFT OF AN ARROW IN AN EQUATION.
  4. QUANTITY OF PRODUCT OBTAINED FROM A COMPLETE CONVERSION OF THE LIMITING REAGENT. THIS IS HOW MUCH PRODUCT IS GIVEN IF WE LIVED IN A PERFECT WORLD.
  5. EQUAL TO 6.023X10^23
  6. TWO OR MORE FORMS OF THE SAME ELEMENT THAT CONTAIN EQUAL PROTONS BUT DIFFERENT NUMBER OF NEUTRONS
  7. THE PERCENTAGE BY MASS OF EACH ELEMENT IN A COMPOUND
  8. THE LIMITING REAGENT IS THE CHEMICAL IN A REACTION THAT DETERMINES HOW FAR A REACTION CAN PROCEED OR HOW MUCH PRODUCT CAN BE MADE
  9. A REPRESENTATION OF A CHEMICAL REACTION WHERE THE REACTANTS ARE ON THE LEFT OF AN ARROW AND THE PRODUCTS ON THE RIGHT OF AN ARROW
  10. A MEASUREMENT OF AN AMOUNT OF A SUBSTANCE, ALWAYS EQUAL TO 6.023X10^23
  11. THE SET PROPORTIONS IN WHICH ELEMENTS OR COMPOUNDS REACT WITH ONE ANOTHER

20 Clues: EQUAL TO 6.023X10^23 • A GROUP OF ATOMS BONDED TOGETHER • THE MASS IN ONE MOLE OF A SUBSTANCE • THE MASS OF AN ATOM EXPRESSED IN AMU • VISIBLE TO THE NAKED, OR UNAIDED, EYE • EXTREMELY SMALL; VISIBLE WITH A MICROSCOPE • THE STATE OF THE MATTER: SOLID, LIQUID, OR GAS • THE PERCENTAGE BY MASS OF EACH ELEMENT IN A COMPOUND • ...

Types Of Reaction 2024-05-11

Types Of Reaction crossword puzzle
Across
  1. A Reaction in which two chemical substances react by exchanging ions to produce two new molecules
  2. A reaction in which one element is substituted for another element in a compound.
  3. A substance that donates electrons to another substance in a chemical reaction.
  4. A reaction in which oxygen atom is added or hydrogen atom is lost.
  5. Releasing heat energy during a chemical reaction
  6. A reaction in which a compound breaks down into two or more simpler substances
Down
  1. A chemical process in which two or more simple elements or compounds combine to form a more complex product
  2. A chemical reaction which involves addition of hydrogen or removal of oxygen or gain of electron(s)
  3. Is a process where substances transform into new substances through the breaking and forming of chemical bonds.
  4. Relating to chemical reactions triggered by light energy.
  5. A chemical reaction occurring in an aqueous solution where two ionic bonds combine, resulting in the formation of an insoluble salt
  6. A substance that takes part in and undergoes change during a reaction.
  7. A substance that donates electrons to another substance in a chemical reaction.
  8. Absorbing heat energy during a chemical reaction.
  9. A chemical reaction in which an acid and base which react together to form a salt and water as products.

15 Clues: Releasing heat energy during a chemical reaction • Absorbing heat energy during a chemical reaction. • Relating to chemical reactions triggered by light energy. • A reaction in which oxygen atom is added or hydrogen atom is lost. • A substance that takes part in and undergoes change during a reaction. • ...

CHEMICAL REACTIONS AND EQUATIONS 2022-08-02

CHEMICAL REACTIONS AND EQUATIONS crossword puzzle
Across
  1. the symbol aq in a chemical equation means
  2. Gain of oxygen by a substance during a chemical reaction
  3. Solid that forms from a solution during a chemical reaction
  4. A destructive chemical process in which metals are oxidized in presence of air and moisture
  5. Substance formed as a result of a chemical reaction
Down
  1. Shortest representation of a chemical reaction using chemical formulae.
  2. Gain of hydrogen by a substance during a chemical reaction
  3. Reaction that gives out heat energy
  4. Reaction that absorbs heat energy
  5. A reaction in which a single product is formed when two or more reactants combine
  6. A reaction in which Oxidation of fats/oils results into the formation of acids
  7. Chemical reaction in which a single compound breaks down into two or more elements or compounds
  8. A reaction in which an element displaces another element from its compound

13 Clues: Reaction that absorbs heat energy • Reaction that gives out heat energy • the symbol aq in a chemical equation means • Substance formed as a result of a chemical reaction • Gain of oxygen by a substance during a chemical reaction • Gain of hydrogen by a substance during a chemical reaction • Solid that forms from a solution during a chemical reaction • ...

Science Vocab chapter 4 2018-10-25

Science Vocab chapter 4 crossword puzzle
Across
  1. system matter can enter from or escape to the surroundings.
  2. substances that undergo the chemical changes.
  3. the amount of a substance in a given volume.
  4. of conservation of mass states that during a chemical reaction matter is not created or destroyed.
  5. the new substances that form.
  6. in chemistry when two or more elements or compounds combine to make a more complex substance, the reaction is classified as...
  7. increases the reaction rate by lowering the activation energy needed.
  8. when one element replaces another element in a compound, or if two elements in different compounds trade places, the reaction is a replacement.
  9. a number placed in front of a chemical formula in an equation.
  10. reaction the energy released as the products form is greater than the energy required to break the bonds of the reactants.
Down
  1. A material used to decrease the rate of a chemical reaction is an...
  2. change any change that alters the form or appearance of a substance but does not change it into another substance.
  3. the cells in your body contain thousands of biological catalysts called...
  4. reaction more energy is required to break the bonds of the reactants than is released by the formation of the products.
  5. occurs when compounds break down into simpler products.
  6. a solid that forms from liquids during a chemical reaction.
  7. system matter does not enter or leave
  8. energy the minimum amount of energy needed to start a chemical reaction.
  9. change A change in matter that produces one or more new substances.

19 Clues: the new substances that form. • system matter does not enter or leave • the amount of a substance in a given volume. • substances that undergo the chemical changes. • occurs when compounds break down into simpler products. • system matter can enter from or escape to the surroundings. • a solid that forms from liquids during a chemical reaction. • ...

Mod 5 vocab 2021-11-13

Mod 5 vocab crossword puzzle
Across
  1. high-temperature exothermic redox chemical reaction between a fuel and an oxidant
  2. a substance produced during a natural, chemical, or manufacturing process.
  3. the numbers or terms used to balance chemical equations and are placed in front of a chemical symbol or formula
  4. a substance that takes part in and undergoes change during a reaction.
  5. is a chemical reaction in which one element is replaced by another in a compound
Down
  1. reactions that occur when two different atoms or molecules interact to form a different molecule or compound
  2. replacement reaction is a chemical process involving the exchange of bonds between two reacting chemical species which results in the creation of products with similar or identical bonding affiliations.
  3. solution solution in which the solvent is water. It is mostly shown in chemical equations by appending to the relevant chemical formula.
  4. s the process or effect of simplifying a single chemical entity into two or more fragments
  5. A solvent is a substance that dissolves a solute, resulting in a solution
  6. ion an ion that does not take part in the chemical reaction
  7. the process of transforming a dissolved substance into an insoluble solid from a super-saturated solution.
  8. ionic equation indicates all of the dissociated ions in a chemical reaction.
  9. the minor component in a solution, dissolved in the solvent.
  10. A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right
  11. a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction a chemical process in which two or more substances act mutually on each other and are changed into different substances, or one substance changes into two or more other substances.
  12. ionic equation the chemical equation that shows only those elements, compounds, and ions that are directly involved in the chemical reaction

17 Clues: ion an ion that does not take part in the chemical reaction • the minor component in a solution, dissolved in the solvent. • a substance that takes part in and undergoes change during a reaction. • A solvent is a substance that dissolves a solute, resulting in a solution • a substance produced during a natural, chemical, or manufacturing process. • ...

Chemical Reactions Vocab 2017-08-03

Chemical Reactions Vocab crossword puzzle
Across
  1. a reaction in which one element displaces another in a compound
  2. an ionic compound that usually remains dissolved in a solution after an acid-base reaction has occurred
  3. dissolves in solution
  4. a chemical equation showing all the species as they are actually present in solution
  5. a reaction that occurs in solution and forms a gas as one of the products
  6. a reaction in which electrons are transferred from one substance to another
  7. a solution containing a solute that dissociates into ions; therefore, a solution that conducts electricity well
  8. a reaction in which simpler substances combine to form more complex substances
  9. a chemical equation showing the complete, neutral formulas for every compound in a reaction
  10. ions that do not participate in a reaction; they appear unchanged on both sides of a chemical equation
  11. a chemical equation in which the numbers of each type of atom on both sides of the equation are equal
  12. an equation that shows only the species that actually participate in a reaction
  13. a homogeneous mixture of a substance with water
Down
  1. a reaction in which two elements or groups of element in two different compounds exchange places to form two new compounds
  2. a reaction that forms water and typically a salt
  3. a chemical reaction in which simpler substances combined to form more complex substances
  4. a reaction in which one element displaces another in a compound
  5. a reaction that takes place when an acid and a base are mixed; to form water and a salt
  6. a reaction that forms a solid or precipitate when two aqueous solutions are mixed
  7. an insoluble product formed through the reaction of two solutions containing soluble compounds
  8. a reaction in which a complex substance breaks apart to form simpler substances
  9. a set of empirical rules used to determine whether an ionic compound is soluble
  10. a reaction in which a substance reacts with oxygen, emitting heat and forming one or more oxygen-containing compounds
  11. does not dissolve in water

24 Clues: dissolves in solution • does not dissolve in water • a homogeneous mixture of a substance with water • a reaction that forms water and typically a salt • a reaction in which one element displaces another in a compound • a reaction in which one element displaces another in a compound • a reaction that occurs in solution and forms a gas as one of the products • ...

Types of Chemical Reactions 2024-05-11

Types of Chemical Reactions crossword puzzle
Across
  1. A chemical reaction that releases energy in the form of heat
  2. When two compounds switch partners in a reaction
  3. The number and types of atoms on both sides of the equation must be equal in this type of reaction
  4. A reaction in which an acid reacts with a base to produce salt and water
  5. Residue formed from the reaction between an acid and a base
  6. A solid formed from a chemical reaction that settles out of a solution
  7. A type of reaction that absorbs heat from its surroundings
  8. The outcome of a chemical reaction
  9. This type of reaction involves the breaking down of a compound into simpler substances
Down
  1. The foul smell that develops in oils due to exposure to oxygen for a long time
  2. The gradual destruction of materials, especially metals
  3. The starting materials in a chemical reaction
  4. A substance that undergoes a reduction in a chemical reaction
  5. These minute particles are like the letters of the alphabet
  6. A type of reaction where a single element replaces another element in a compound
  7. Splitting compounds using electricity to obtain elements

16 Clues: The outcome of a chemical reaction • The starting materials in a chemical reaction • When two compounds switch partners in a reaction • The gradual destruction of materials, especially metals • Splitting compounds using electricity to obtain elements • A type of reaction that absorbs heat from its surroundings • ...

Grade 9 Unit B Vocabulary 2023-10-24

Grade 9 Unit B Vocabulary crossword puzzle
Across
  1. an atom that has lost electrons
  2. matter cannot be created or destroyed
  3. nonmetals in group 17 of the periodic table
  4. the ability for a material to be rolled into wire or rods
  5. a chemical reaction involving the burning of a fuel with oxygen
  6. chemically unreactive
  7. a type of element that is a good insulator
  8. a type of element that shares properties between metals and nonmetals
  9. a negatively charged subatomic particle
  10. the ability for a material to be hammered into thin sheets
  11. nonmetal elements found in group 18 of the periodic table
  12. a chemical reaction that absorbs heat has a reactant
  13. the chemicals produced in a chemical reaction
  14. a positively charged subatomic particle
  15. a chemical reaction between a metal and oxygen
Down
  1. metals in group two of the periodic table
  2. starting chemicals in a chemical reaction
  3. a pure substance made of only one type of molecule
  4. metals in group one of the periodic table
  5. an atom that has gained electrons
  6. a substance that speeds up a chemical reaction
  7. a table that includes all known elements organized by atomic structure
  8. a type of element that is good at conducting heat and electricity
  9. a pure substance made of only one type of atom
  10. workplace hazardous material information system
  11. a chemical reaction that releases heat as a product
  12. something that has mass and takes up space

27 Clues: chemically unreactive • an atom that has lost electrons • an atom that has gained electrons • matter cannot be created or destroyed • a negatively charged subatomic particle • a positively charged subatomic particle • metals in group two of the periodic table • starting chemicals in a chemical reaction • metals in group one of the periodic table • ...

Chapter 5 Vocabulary 2013-11-05

Chapter 5 Vocabulary crossword puzzle
Across
  1. the fragments of molecules that have at least one electron available for bonding
  2. the decomposition of a compound by an electric current
  3. a substance that is the result of a chemical change
  4. a substance that changes the rate of chemical reactions without being consumed
  5. a reaction in which atoms of one element take the place of atoms of another element in a compound
  6. a reaction that transfers energy from the reactants to the surroundings as heat
  7. a reaction in which one compound breaks into at least two products
  8. a reaction in which energy is transferred to the reactants as heat from the surroundings
  9. the state in which a chemical reaction and its reverse occur at the same time and at the same rate
  10. a protein that speeds up a specific biochemical reaction
  11. a reaction of at least two substances that forms a new more complex compound
  12. a substance that undergoes a chemical change
  13. an equation that uses chemical formulas and symbols to show the reactants and products in a chemical reaction
Down
  1. a reaction in which a gas, a solid precipitate, or a molecular compound is formed from the apparent exchange of ions between two compounds
  2. a reaction in which a compound and oxygen burn
  3. the energy stored within atoms and molecules that can be released when a substance reacts
  4. a reaction that occurs when electrons are transferred from one reactant to another
  5. the specific substance affected by an enzyme

18 Clues: the specific substance affected by an enzyme • a substance that undergoes a chemical change • a reaction in which a compound and oxygen burn • a substance that is the result of a chemical change • the decomposition of a compound by an electric current • a protein that speeds up a specific biochemical reaction • ...

STOICHIOMETRY 2015-02-16

STOICHIOMETRY crossword puzzle
Across
  1. TWO OR MORE FORMS OF THE SAME ELEMENT THAT CONTAIN EQUAL PROTONS BUT DIFFERENT NUMBER OF NEUTRONS
  2. VISIBLE TO THE NAKED, OR UNAIDED, EYE
  3. THE STATE OF THE MATTER: SOLID, LIQUID, OR GAS
  4. A REPRESENTATION OF A CHEMICAL REACTION WHERE THE REACTANTS ARE ON THE LEFT OF AN ARROW AND THE PRODUCTS ON THE RIGHT OF AN ARROW
  5. THE SET PROPORTIONS IN WHICH ELEMENTS OR COMPOUNDS REACT WITH ONE ANOTHER
  6. WHEN A CHEMICAL REACTION IS COMPLETED, THIS IS THE AMOUNT OF PRODUCT THAT YOU ACTUALLY MAKE
  7. IN A CHEMICAL REACTION, THE REACTANT IS THE STARTING CHEMICAL(S). IT APPEARS TO THE RIGHT OF AN ARROW IN AN EQUATION.
  8. IN A CHEMICAL REACTION, THE PRODUCT IS THE STARTING CHEMICAL(S). IT APPEARS TO THE LEFT OF AN ARROW IN AN EQUATION.
  9. EQUAL TO 6.023X10^23
  10. THE MASS IN ONE MOLE OF A SUBSTANCE
  11. THE PERCENTAGE BY MASS OF EACH ELEMENT IN A COMPOUND
  12. A MEASUREMENT OF AN AMOUNT OF A SUBSTANCE, ALWAYS EQUAL TO 6.023X10^23
  13. THE ACTUAL YIELD OF A CHEMICAL REACTION DIVIDED BY THE THEORETICAL YIELD TIMES 100%
Down
  1. EXTREMELY SMALL; VISIBLE WITH A MICROSCOPE
  2. THE LIMITING REAGENT IS THE CHEMICAL IN A REACTION THAT DETERMINES HOW FAR A REACTION CAN PROCEED OR HOW MUCH PRODUCT CAN BE MADE
  3. A PROCESS THAT CONVERTS ONE OR MORE CHEMICALS INTO A DIFFERENT CHEMICAL(S)
  4. A SCIENTIFIC PRINCIPLE THAT STATES THAT MATTER CANNOT BE CREATED NOR DESTROYED
  5. QUANTITY OF PRODUCT OBTAINED FROM A COMPLETE CONVERSION OF THE LIMITING REAGENT. THIS IS HOW MUCH PRODUCT IS GIVEN IF WE LIVED IN A PERFECT WORLD.
  6. THE MASS OF AN ATOM EXPRESSED IN AMU
  7. A GROUP OF ATOMS BONDED TOGETHER

20 Clues: EQUAL TO 6.023X10^23 • A GROUP OF ATOMS BONDED TOGETHER • THE MASS IN ONE MOLE OF A SUBSTANCE • THE MASS OF AN ATOM EXPRESSED IN AMU • VISIBLE TO THE NAKED, OR UNAIDED, EYE • EXTREMELY SMALL; VISIBLE WITH A MICROSCOPE • THE STATE OF THE MATTER: SOLID, LIQUID, OR GAS • THE PERCENTAGE BY MASS OF EACH ELEMENT IN A COMPOUND • ...

6 Types of Chemical Reactions 2025-11-14

6 Types of Chemical Reactions crossword puzzle
Across
  1. A chemical reaction where a hydrocarbon and oxygen react.
  2. A compound that releases hydrogen ions in solution.
  3. This element reacts with a hydrocarbon in a combustion reaction.
  4. The name of the compound formed when AlP and N2 react.
  5. The name of the salt formed when HCl and NaOH react.
  6. The name given to an ion with a positive charge.
  7. This group of 7 elements will always occur in pairs when they are not in a compound.
Down
  1. A chemical reaction where one element in a compound is replaced by a single element.
  2. In a double replacement reaction, which element would iron replace? FeS + CaO -->
  3. When sulphur appears as a single element, it isn't in a pair, but a group of __________.
  4. A chemical reaction where a compound breaks down into individual elements.
  5. In a single replacement reaction, which element would iodine replace when reacted with KF?
  6. After you predict the products of a chemical reaction, you must use coefficients to _________ the equation.
  7. An ionic compound formed when an acid and base react.
  8. When phosphorous appears as a single element, it isn't in a pair, but a group of ___________.
  9. A compound that releases hydroxide ions in solution.
  10. This type of reaction occurs between an acid and a base.
  11. The name given to an ion with a negative charge.
  12. A chemical reaction where two elements combine to form a compound.
  13. This product is formed in both an acid-base reaction and a combustion.

20 Clues: The name given to an ion with a negative charge. • The name given to an ion with a positive charge. • A compound that releases hydrogen ions in solution. • A compound that releases hydroxide ions in solution. • The name of the salt formed when HCl and NaOH react. • An ionic compound formed when an acid and base react. • ...

Shai Oliva 2019-06-12

Shai Oliva crossword puzzle
Across
  1. table A table of chemical elements arranged in order of atomic number
  2. A substance that conducts electricity when dissolved in water
  3. Negatively charged ions formed when electrons are gained
  4. Hg
  5. ion Nitrate ion (NO3-)
  6. A whole number that appears before a formula in an equation
  7. Positively charged ions formed when electrons are lost
  8. reaction A reaction in which oxygen reacts with another substance, often producing carbon dioxide and water
  9. 2 atoms of hydrogen and one oxygen
  10. Atoms or groups of atoms with a charge ( negative or positive)
  11. replacement reaction A reaction that involves an exchange of positive ions between two compounds
  12. dot structure Name of structure of dna
Down
  1. A starting substance in a chemical reaction
  2. bonding When a pair of electrons is shared between two atoms
  3. bonds Bonds form to make atoms happy, allow atoms to follow the octet rule, and hold atoms together
  4. reaction A reaction in which a single compound is broken down into simpler substances
  5. Ba
  6. A new substance formed in a chemical reaction
  7. 1s2 2s2 2p3
  8. 1s2 2s2 2p6 3s2 3p5
  9. bonding Atoms give away or accept electrons
  10. Indicates a substance is dissolved in water
  11. replacement reaction A reaction in which the atoms of one element replace the atoms of a second element

23 Clues: Ba • Hg • 1s2 2s2 2p3 • 1s2 2s2 2p6 3s2 3p5 • ion Nitrate ion (NO3-) • 2 atoms of hydrogen and one oxygen • dot structure Name of structure of dna • A starting substance in a chemical reaction • bonding Atoms give away or accept electrons • Indicates a substance is dissolved in water • A new substance formed in a chemical reaction • ...

Midterm Crossword review 2020-01-06

Midterm Crossword review crossword puzzle
Across
  1. How hot or cold something is
  2. an arrangement of elements showing the repeating patterns of their properties.
  3. the change of state from liquid to gas.
  4. a reaction that releases energy, example: the body
  5. 2,8,18,32.
  6. a material that increases the rate of a reaction by lowering the activation energy.
  7. a chemical reaction that break down compounds into simpler products.
  8. the ratio of mass of a substance to it volume.
  9. the basic particle from which all elements are made.
  10. the attractions between oppositely charged ions.
  11. a chemical reaction when two or more simple substances combine to form a new, more complex substance.
Down
  1. a short way to show a chemical reaction using symbols.
  2. a chemical reaction replaces another in a compound, or when 2 elements trade places.
  3. A small particle that is neutral.
  4. a state of matter that has no definite shape but has a definite volume.
  5. the amount of matter in an object.
  6. a chemical bond formed when two atoms share an electron.
  7. a reaction that absorbs energy, example: ice
  8. the temperature at which a substance changes from a solid to a liquid.
  9. represents the amount of electrons in electron configuration.
  10. small, positive particles found in the nucleus.
  11. a state of matter that has a definite shape and volume.
  12. a state of matter that has no definite shape or volume.
  13. anything that has mass and takes up space.
  14. small, negative particles that move around the nucleus.

25 Clues: 2,8,18,32. • How hot or cold something is • A small particle that is neutral. • the amount of matter in an object. • the change of state from liquid to gas. • anything that has mass and takes up space. • a reaction that absorbs energy, example: ice • the ratio of mass of a substance to it volume. • small, positive particles found in the nucleus. • ...

Types Of Reaction-Crossword Puzzle(M.A) 2024-05-06

Types Of Reaction-Crossword Puzzle(M.A) crossword puzzle
Across
  1. Reaction that absorbs heat from its surroundings.
  2. Reaction that releases heat to its surroundings.
  3. Reaction between an acid and a base to form water and a salt.
  4. Chemical reaction involving the loss of electrons by a substance.
  5. Type of reaction involving both reduction and oxidation.
  6. Combination of two or more substances to form a new compound.
  7. Chemical reaction involving the gain of electrons by a substance.
Down
  1. Type of reaction where an acid reacts with a base to form salt and water.
  2. Formation of a solid from a solution during a chemical reaction.
  3. Reaction where water breaks down a compound into simpler substances.
  4. Breakdown of a compound into simpler substances.
  5. Type of replacement reaction involving two reactants.
  6. Rapid chemical reaction between a fuel and oxygen, often producing heat and light.
  7. Type of replacement reaction involving one reactant.
  8. Another term for replacement reaction where one element replaces another in a compound.
  9. Reaction in which an element replaces another in a compound.

16 Clues: Breakdown of a compound into simpler substances. • Reaction that releases heat to its surroundings. • Reaction that absorbs heat from its surroundings. • Type of replacement reaction involving one reactant. • Type of replacement reaction involving two reactants. • Type of reaction involving both reduction and oxidation. • ...

chapter 5 vocab crossword 2020-03-27

chapter 5 vocab crossword crossword puzzle
Across
  1. the amount of a substance in a given volume
  2. a way to show a chemical reaction but with symbols
  3. a number placed in front of a chemical formula in an equation
  4. a material used to decrease the rate of a chemical reaction
  5. substances that undergo chemical changes
  6. where matter can enter or escape to the surroundings
  7. when one element replaces another element in a compound
  8. new substances that form
  9. increases the reactiog rate by lowering the activation energy
  10. a solid that forms liquids during a chemical reaction
  11. any change that altes the appernce or a substace
Down
  1. when 2 or more elements combine to make a more complex substace
  2. states that matter can not be created or destroyed
  3. energy being absor
  4. biological catalyst that help these reactions occur at body tempreature
  5. a reaction occurs when compounds breakdown into simpler
  6. minimum amount of energy to start a chemical reaction
  7. energy being released
  8. a change where one substace becomes a different substance
  9. where matter can not enter or escape

20 Clues: energy being absor • energy being released • new substances that form • where matter can not enter or escape • substances that undergo chemical changes • the amount of a substance in a given volume • any change that altes the appernce or a substace • states that matter can not be created or destroyed • a way to show a chemical reaction but with symbols • ...

C3.1 Introducing chemical reactions 2021-05-18

C3.1 Introducing chemical reactions crossword puzzle
Across
  1. molecule containing two atoms
  2. when a reactant is present in an amount greater than that needed to react with the other reactant
  3. a type of reaction in which a precipitate forms
  4. a type of chemical equation that models the change that happens to one reactant in a reaction
  5. an ion formed when a group of atoms loses of gains electrons
  6. a charged particle present in a reaction mixture, but that does not take part in the reaction
  7. a model for a reaction showing formulae and number of units for all substances involved. The numbers of each atom are the same on both sides of the equation
  8. an insoluble product in the solid state, formed during a reaction involving solutions
  9. the number of entities in one mole, equal to the number of atoms in 12.0 g of 12C atoms, 6.02 × 1023
Down
  1. a type of chemical equation that models how oppositely charged ions form an ionic compound
  2. amount of substance that contains the same number of particles (6.02 × 1023) as there are atoms in 12.0 g of 12C
  3. the principle that states that the total mass stays the same during a chemical reaction, because atoms are not created or destroyed during a chemical reaction
  4. a model of a reaction that describes reactants and products using their chemical names
  5. apparatus in which substances can enter or leave the reaction mixture during a reaction
  6. letters used to represent the physical state of a substance (g, gas; l, liquid; s, solid; aq, dissolved in water)
  7. apparatus in which substances cannot enter or leave the reaction mixture during a reaction
  8. blue paper changes to red in acidic solution, and red paper turns to blue in an alkaline solution
  9. a description of a compound or an element that uses symbols for atoms, and numbers to show the actual number of atoms of each element in a molecule
  10. a reactant present in an amount less that that needed to react completely with the other reactant in a chemical reaction
  11. the mass in grams of one mole of a substance
  12. describes the relative amounts of each substance involved in a chemical reaction
  13. alkaline calcium hydroxide solution. It turns cloudy white in the presence of carbon dioxide

22 Clues: molecule containing two atoms • the mass in grams of one mole of a substance • a type of reaction in which a precipitate forms • an ion formed when a group of atoms loses of gains electrons • describes the relative amounts of each substance involved in a chemical reaction • an insoluble product in the solid state, formed during a reaction involving solutions • ...

Enzymes Vocabulary 2022-10-27

Enzymes Vocabulary crossword puzzle
Across
  1. the amount of energy required to start a chemical reaction
  2. the part of the enzyme that binds to the substrate molecule
  3. damage done to a protein
  4. the suffix for most enzymes
  5. a chemical reaction that releases heat
  6. blocks an enzyme from being able to function
  7. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  8. the type of macromolecule an enzyme is
Down
  1. the amount of substrate available for a chemical reaction
  2. a chemical reaction that absorbs heat
  3. what is made at the end of a chemical reaction
  4. the molecule that binds to an enzyme to undergo a chemical change
  5. turns on an enzyme
  6. Protein that helps speed up chemical reactions in cells.

14 Clues: turns on an enzyme • damage done to a protein • the suffix for most enzymes • a chemical reaction that absorbs heat • a chemical reaction that releases heat • the type of macromolecule an enzyme is • blocks an enzyme from being able to function • what is made at the end of a chemical reaction • Protein that helps speed up chemical reactions in cells. • ...

Lesson 5 Crossword - Energy (ATP) & Enzymes 2016-05-26

Lesson 5 Crossword - Energy (ATP) & Enzymes crossword puzzle
Across
  1. Initial molecules in a chemical reaction
  2. Chemical reactions that break down large molecules into small ones
  3. Type of inhibition where an enzyme's active site is blocked by a molecule
  4. Initial molecule in a chemical reaction that binds to an enzyme's active site
  5. Type of regulatory molecule that changes the shape of the enzyme so that it can function
  6. Type of reaction that requires an input of energy
  7. Stored energy
  8. Type of reaction that releases energy
  9. Organism that uses sunlight to make food
  10. Organism that eats other organisms
Down
  1. Organism that breaks down dead material
  2. _____ pathway, chemical reactions linked in a particular order
  3. The _____ site is where a substrate binds to an enzyme
  4. _____ regulation changes the shape of the enzyme
  5. Energy of movement
  6. Chemical reactions that build large molecules from small ones
  7. Macromolecule that functions as a catalyst
  8. Type of inhibition where the end product of a pathway becomes the inhibitor of the initial enzyme
  9. Molecules produced in a chemical reaction
  10. Type of regulatory molecule that changes the shape of the enzyme so that it cannot function

20 Clues: Stored energy • Energy of movement • Organism that eats other organisms • Type of reaction that releases energy • Organism that breaks down dead material • Initial molecules in a chemical reaction • Organism that uses sunlight to make food • Molecules produced in a chemical reaction • Macromolecule that functions as a catalyst • ...

Chem Final Crossword 2019-06-12

Chem Final Crossword crossword puzzle
Across
  1. 1s2 2s2 2p3
  2. Hg
  3. A substance that conducts electricity when dissolved in water
  4. replacement reaction A reaction that involves an exchange of positive ions between two compounds
  5. A whole number that appears before a formula in an equation
  6. table A table of chemical elements arranged in order of atomic number
  7. bonding When a pair of electrons is shared between two atoms
  8. Ba
  9. Positively charged ions formed when electrons are lost
  10. 2 atoms of hydrogen and one oxygen
  11. dot structure Name of structure of dna
Down
  1. reaction A reaction in which oxygen reacts with another substance, often producing carbon dioxide and water
  2. bonds Bonds form to make atoms happy, allow atoms to follow the octet rule, and hold atoms together
  3. Indicates a substance is dissolved in water
  4. reaction A reaction in which a single compound is broken down into simpler substances
  5. ion Nitrate ion (NO3-)
  6. A starting substance in a chemical reaction
  7. A new substance formed in a chemical reaction
  8. 1s2 2s2 2p6 3s2 3p5
  9. bonding Atoms give away or accept electrons
  10. Negatively charged ions formed when electrons are gained
  11. replacement reaction A reaction in which the atoms of one element replace the atoms of a second element
  12. Atoms or groups of atoms with a charge ( negative or positive)

23 Clues: Hg • Ba • 1s2 2s2 2p3 • 1s2 2s2 2p6 3s2 3p5 • ion Nitrate ion (NO3-) • 2 atoms of hydrogen and one oxygen • dot structure Name of structure of dna • Indicates a substance is dissolved in water • A starting substance in a chemical reaction • bonding Atoms give away or accept electrons • A new substance formed in a chemical reaction • ...

Chapter 18 & 19 Vocab 2016-05-15

Chapter 18 & 19 Vocab crossword puzzle
Across
  1. / a measure of the concentration of hydronium ions, H3O+, in a solution
  2. / the component of a solution that is present in the greatest amount
  3. effect / the scattering of light by the particles in a colloid
  4. energy / energy needed to break chemical bonds in the reactants to start a reaction
  5. / a mixture that contains particles that are greater than 1,000 nanometers
  6. reactant / a reactant that is not completely used up in a chemical reaction
  7. / a substance that produces hydroxide ions (OH-) when dissolved in water
  8. / a mixture of two or more substances that is homogenous at the molecular level
  9. / a certain length of time after which half the amount of a radioactive element has undergone radioactive decay
  10. / the reaction of an acid and a base to produce a salt and water
  11. scale / it goes form 1 to 14 with 1 being very acidic and 14 being very basic
  12. reaction / an endothermic reaction that occurs when an ionic compound dissolves in water to make an ionic solution
  13. / describes a chemical reaction that releases more energy than it uses
  14. / describes a solution with a concentration less than the maximum solubility
  15. bond / an intermolecular force between the hydrogen on one molecule to an atom on another molecule
  16. / the moles of solute per liter of solution
  17. rate / the change in concentration of reactant or products in a chemical reaction over time
  18. / any component of a solution other than the solvent
  19. equilibrium / the state at which the rate of the forward reaction equals the rate of the reverse reaction for a chemical reaction
  20. reactant / a reactant that is used up first in a chemical reaction
Down
  1. / to separate and disperse a solid into individual particles in the presence of a solvent
  2. yield / the actual yield of a product in a chemical reaction divided by the predicted yield and multiplied by 100
  3. fission / a nuclear reaction in which the nuclei of heavier atoms are split to make lighter atoms
  4. / the ratio of solute to solvent in a solution
  5. / describes a chemical reaction that uses more energy than it releases
  6. molecule / a molecule that has a negative and a positive end or pole
  7. / describes a solution with a concentration greater than the maximum solubility
  8. / the state of a solution in which the dissolving rate equal the rate at which molecules come out of solution
  9. rules / a set of rules used to predict whether an ionic compound will be soluble or insoluble in water
  10. / a molecule added to a chemical reaction that increases the reaction rate without getting used up in the process
  11. / a molecule that slows down a chemical reaction
  12. / a mixture that contains evenly distributed particles that are 1 to 1,000 nanometers in size
  13. molecular theory / the concept that all atoms and molecules exhibit random motion
  14. / describes a solution that has as much solute as the solvent can dissolve under the conditions
  15. / when a solute is unable to dissolve in a particular solvent
  16. / a solution of two or more solids
  17. polar molecule / a molecule that does not have distinctly-charged poles
  18. / a substance that produces hydronium ions (H3O+) when dissolved
  19. percent / the mass of the solute divided by the total mass of the solution multiplied by 100

39 Clues: / a solution of two or more solids • / the moles of solute per liter of solution • / the ratio of solute to solvent in a solution • / a molecule that slows down a chemical reaction • / any component of a solution other than the solvent • / when a solute is unable to dissolve in a particular solvent • effect / the scattering of light by the particles in a colloid • ...

C3.1 Introducing chemical reactions 2021-05-18

C3.1 Introducing chemical reactions crossword puzzle
Across
  1. molecule containing two atoms
  2. when a reactant is present in an amount greater than that needed to react with the other reactant
  3. a type of reaction in which a precipitate forms
  4. a type of chemical equation that models the change that happens to one reactant in a reaction
  5. an ion formed when a group of atoms loses of gains electrons
  6. a charged particle present in a reaction mixture, but that does not take part in the reaction
  7. a model for a reaction showing formulae and number of units for all substances involved. The numbers of each atom are the same on both sides of the equation
  8. an insoluble product in the solid state, formed during a reaction involving solutions
  9. the number of entities in one mole, equal to the number of atoms in 12.0 g of 12C atoms, 6.02 × 1023
Down
  1. a type of chemical equation that models how oppositely charged ions form an ionic compound
  2. amount of substance that contains the same number of particles (6.02 × 1023) as there are atoms in 12.0 g of 12C
  3. the principle that states that the total mass stays the same during a chemical reaction, because atoms are not created or destroyed during a chemical reaction
  4. a model of a reaction that describes reactants and products using their chemical names
  5. apparatus in which substances can enter or leave the reaction mixture during a reaction
  6. letters used to represent the physical state of a substance (g, gas; l, liquid; s, solid; aq, dissolved in water)
  7. apparatus in which substances cannot enter or leave the reaction mixture during a reaction
  8. blue paper changes to red in acidic solution, and red paper turns to blue in an alkaline solution
  9. a description of a compound or an element that uses symbols for atoms, and numbers to show the actual number of atoms of each element in a molecule
  10. a reactant present in an amount less that that needed to react completely with the other reactant in a chemical reaction
  11. the mass in grams of one mole of a substance
  12. describes the relative amounts of each substance involved in a chemical reaction
  13. alkaline calcium hydroxide solution. It turns cloudy white in the presence of carbon dioxide

22 Clues: molecule containing two atoms • the mass in grams of one mole of a substance • a type of reaction in which a precipitate forms • an ion formed when a group of atoms loses of gains electrons • describes the relative amounts of each substance involved in a chemical reaction • an insoluble product in the solid state, formed during a reaction involving solutions • ...

Chapter 5 lesson 1 2020-03-03

Chapter 5 lesson 1 crossword puzzle
Across
  1. The new substances that form.
  2. Increases the reaction rate by lowering the activation energy needed.
  3. The amount of a substance in a given volume.
  4. Substances that undergo the chemical changes.
  5. Any change that alters the form or appearance of a substance but does not change it into another substance
  6. The energy released as the products form is greater that the energy required to break the bonds of the reactants.
  7. Matter can enter from or escape to the surroundings.
  8. Matter does not enter or leave
  9. A number placed in front of a chemical formula in an equation.
  10. During a chemical reaction, matter is not created or destroyed.
  11. When two or more elements or compounds combine to make a more complex substance.
Down
  1. When one element replaces another element in a compound or if two elements in different compounds trade places.
  2. A solid that forms from liquids during a chemical reaction.
  3. energy The minimum amount of energy needed to start a chemical reaction.
  4. A way to show a chemical reaction, using symbols instead of words.
  5. More energy is required to break the bonds of the reactants than is released by the formation of the products.
  6. A change in matter that produces one or more new substances.
  7. Reaction that occurs when compounds break down into simpler products.
  8. A material used to decrease the rate of a chemical reaction.
  9. The cells in your body that contain thousands of biological catalysts.

20 Clues: The new substances that form. • Matter does not enter or leave • The amount of a substance in a given volume. • Substances that undergo the chemical changes. • Matter can enter from or escape to the surroundings. • A solid that forms from liquids during a chemical reaction. • A change in matter that produces one or more new substances. • ...

chapter seventeen 2022-05-16

chapter seventeen crossword puzzle
Across
  1. a catalyst that exists in the same physical state as the reaction it catalyzes
  2. The mathematical relationship between the rate of a chemical reaction at a given temperature
  3. for a reactant describes how the rate is affected by the concentration of that reactant
  4. Term used to describe an activated complex because the activated complex is as likely to form reactants as it is to form
  5. a short-lived, unstable arrangement of atoms that may break apart and re-form
  6. The slowest elementary step in a complex reaction
  7. a substance that slows down the reaction rate of a chemical reaction or prevents a chemical reaction from happening
  8. a substance produced in one elementary step of a complex reaction
  9. states that atoms, ions, and molecules must collide in order to react
  10. a chemical reaction that consists of two or more elementary steps
Down
  1. a substance that increases the rate of a chemical reaction by lowering activation energies
  2. determines the reaction order by comparing the initial rates of a reaction carried out with varying reactant concentrations
  3. The change in concentration of a reactant or product per unit time
  4. a catalyst that exists in a different physical state than the reaction it catalyzes
  5. the rate of decomposition at a specific time
  6. The complete sequence of elementary steps that make up a complex reaction
  7. the minimum amount of energy required by reacting particles in order to form the activated complex
  8. A numerical value that relates reaction rate and concentration of reactant at a specific temperature

18 Clues: the rate of decomposition at a specific time • The slowest elementary step in a complex reaction • a substance produced in one elementary step of a complex reaction • a chemical reaction that consists of two or more elementary steps • The change in concentration of a reactant or product per unit time • ...

chapter seventeen 2022-05-16

chapter seventeen crossword puzzle
Across
  1. a catalyst that exists in the same physical state as the reaction it catalyzes
  2. The mathematical relationship between the rate of a chemical reaction at a given temperature
  3. for a reactant describes how the rate is affected by the concentration of that reactant
  4. Term used to describe an activated complex because the activated complex is as likely to form reactants as it is to form
  5. a short-lived, unstable arrangement of atoms that may break apart and re-form
  6. The slowest elementary step in a complex reaction
  7. a substance that slows down the reaction rate of a chemical reaction or prevents a chemical reaction from happening
  8. a substance produced in one elementary step of a complex reaction
  9. states that atoms, ions, and molecules must collide in order to react
  10. a chemical reaction that consists of two or more elementary steps
Down
  1. a substance that increases the rate of a chemical reaction by lowering activation energies
  2. determines the reaction order by comparing the initial rates of a reaction carried out with varying reactant concentrations
  3. The change in concentration of a reactant or product per unit time
  4. a catalyst that exists in a different physical state than the reaction it catalyzes
  5. the rate of decomposition at a specific time
  6. The complete sequence of elementary steps that make up a complex reaction
  7. the minimum amount of energy required by reacting particles in order to form the activated complex
  8. A numerical value that relates reaction rate and concentration of reactant at a specific temperature

18 Clues: the rate of decomposition at a specific time • The slowest elementary step in a complex reaction • a substance produced in one elementary step of a complex reaction • a chemical reaction that consists of two or more elementary steps • The change in concentration of a reactant or product per unit time • ...

chapter seventeen 2022-05-16

chapter seventeen crossword puzzle
Across
  1. a catalyst that exists in the same physical state as the reaction it catalyzes
  2. The mathematical relationship between the rate of a chemical reaction at a given temperature
  3. for a reactant describes how the rate is affected by the concentration of that reactant
  4. Term used to describe an activated complex because the activated complex is as likely to form reactants as it is to form
  5. a short-lived, unstable arrangement of atoms that may break apart and re-form
  6. The slowest elementary step in a complex reaction
  7. a substance that slows down the reaction rate of a chemical reaction or prevents a chemical reaction from happening
  8. a substance produced in one elementary step of a complex reaction
  9. states that atoms, ions, and molecules must collide in order to react
  10. a chemical reaction that consists of two or more elementary steps
Down
  1. a substance that increases the rate of a chemical reaction by lowering activation energies
  2. determines the reaction order by comparing the initial rates of a reaction carried out with varying reactant concentrations
  3. The change in concentration of a reactant or product per unit time
  4. a catalyst that exists in a different physical state than the reaction it catalyzes
  5. the rate of decomposition at a specific time
  6. The complete sequence of elementary steps that make up a complex reaction
  7. the minimum amount of energy required by reacting particles in order to form the activated complex
  8. A numerical value that relates reaction rate and concentration of reactant at a specific temperature

18 Clues: the rate of decomposition at a specific time • The slowest elementary step in a complex reaction • a substance produced in one elementary step of a complex reaction • a chemical reaction that consists of two or more elementary steps • The change in concentration of a reactant or product per unit time • ...

26 Terms from Chapter 2 2022-03-21

26 Terms from Chapter 2 crossword puzzle
Across
  1. the amount of substance given volume
  2. reaction a reaction in which energy is absorbed
  3. reaction a change in matter that produces one or more new substances
  4. the cells in your body contain biological catalysts
  5. a material that increases the rate of a reaction by lowering the activation energy
  6. when one element replaces another in a compound or when two elements in different compounds trade places
  7. a number placed in front of a chemical formula in an equation
  8. anything that has mass and takes up space
  9. a material that releases energy when it burns
  10. equation a short easy way to show a chemical reaction using symbols instead of words
Down
  1. of mass a principal that states that during a chemical reaction, matter is not created or destroyed
  2. system matter can enter from or escape to the surroundings
  3. when two or more elements or compounds combine to make a more complex substance
  4. system matter is not allowed to enter or leave
  5. the minimum amount of energy needed to start a chemical reaction
  6. when the reaction is complete
  7. a material used to decrease the rate of a reaction
  8. breaks down compounds into simpler products
  9. property a characteristic of a substance that describes its ability to change into other substances
  10. property a characteristic of a substance that can be observed without changing the substance into another substance
  11. the study of matter and how matter changes
  12. change a change that alters the form or appearance of a substance but that does not make a substance into another substance
  13. a solid that forms from a solution during a chemical reaction
  14. the substances you have at the beginning
  15. a rapid reaction between oxygen and a substance called fuel
  16. reaction a reaction that releases energy in the form of heat

26 Clues: when the reaction is complete • the amount of substance given volume • the substances you have at the beginning • anything that has mass and takes up space • the study of matter and how matter changes • breaks down compounds into simpler products • a material that releases energy when it burns • system matter is not allowed to enter or leave • ...

Physical Science Crossword Puzzle 2023-12-11

Physical Science Crossword Puzzle crossword puzzle
Across
  1. a reaction where parts of two ionic compounds are exchanged, making two new compounds
  2. a reaction in which a compound breaks down into two or more simpler substances
  3. when a nonmetal and a nonmetal bond it forms a
  4. the starting materials in a reaction that undergoes a chemical change to form a product
  5. a reaction in which one element is substituted for another element in a compound
  6. an atom or group of atoms that carries a positive or negative electric charge
  7. how much space an object takes up in relation to the amount of mass the object has
  8. another subatomic particle in the nucleus but with a neutral charge
  9. a subatomic particle in the nucleus that has a positive charge
Down
  1. when a nonmetal and a metal bond to form a compound
  2. this reaction occurs when two or more reactants combine to form a single product
  3. the subatomic particle that circles the outside of the nucleus with a negative charge
  4. where elements are found on
  5. a reaction where a change of materials into another, and new substances are formed
  6. any chemical reaction that absorbs heat from its surroundings
  7. a chemical reaction that releases energy by light or heat
  8. the outcome of a chemical reaction
  9. a chemical process in which a substance reacts rapidly with oxygen and gives off heat
  10. poor conductors of electricity and heat, can be found on the right side of the periodic table
  11. an element that is good at conducting heat and electricity

20 Clues: where elements are found on • the outcome of a chemical reaction • when a nonmetal and a nonmetal bond it forms a • when a nonmetal and a metal bond to form a compound • a chemical reaction that releases energy by light or heat • an element that is good at conducting heat and electricity • any chemical reaction that absorbs heat from its surroundings • ...

Chemical Reactions 2024-01-26

Chemical Reactions crossword puzzle
Across
  1. What chemical reaction is responsible for burning things?
  2. If there is no subscript then it is assumed that there are/is ___ atom/atoms of that element in the compound.
  3. The science of naming elements.
  4. Helps balance out chemical equations by changing the number of mols.
  5. A bond between two atoms due to positive and negative charges.
  6. The least reactive elements on the periodic table that have full valence shells.
  7. What is characteristic of a combustion reaction?
  8. A way to decompose water into hydrogen and oxygen gas.
  9. Shows the number of atoms present in certain compounds or elements.
  10. Neither created nor destroyed in a chemical reaction.
  11. When two compounds come together and trade one or more of their elements to each other to create two new compounds.
  12. Needs to be added for some reactions to occur.
  13. Speeds up a chemical reaction without being used up.
  14. When two or more elements join together and become a compound.
  15. When a compound of two or more elements is broken down into 2 or more elements.
  16. A substance that dissolves in water.
Down
  1. Which side of a chemical reaction are the reactants on?
  2. An equation that follows the law of conservation of mass.
  3. A chemical equation with the compounds written out.
  4. Which side of a chemical equation are the products on?
  5. What is absorbed or given off in a chemical reaction?
  6. These types of reactions burn and are responsible for when we burn something.
  7. When an element and a compound come together and rearrange to form a new compound and a new element.
  8. A specific group of atoms held together by chemical bonds.
  9. What does the arrow in a chemical equation represent?
  10. A bond where two or more atoms share their electrons to obtain full octets.
  11. An element that always occurs in pairs in nature.
  12. An unbalanced chemical equation.
  13. The outermost shell of electrons.
  14. What is characteristic of an acid-base neutralization reaction?

30 Clues: The science of naming elements. • An unbalanced chemical equation. • The outermost shell of electrons. • A substance that dissolves in water. • Needs to be added for some reactions to occur. • What is characteristic of a combustion reaction? • An element that always occurs in pairs in nature. • A chemical equation with the compounds written out. • ...

Chemical Reactions and Equations 2025-04-28

Chemical Reactions and Equations crossword puzzle
Across
  1. The spoilage of food containing fats and oils due to oxidation.
  2. Substances that undergo chemical change in a reaction.
  3. A reaction where a single substance breaks down into two or more substances.
  4. A reaction that absorbs heat energy.
  5. A reaction where two compounds exchange ions to form new compounds.
  6. A reaction where two or more substances combine to form one.
  7. A substance that speeds up a chemical reaction without being consumed.
  8. Gain of oxygen or loss of hydrogen in a reaction.
Down
  1. An insoluble solid that forms during a chemical reaction in a solution.
  2. A reaction where one element replaces another in a compound.
  3. Loss of oxygen or gain of hydrogen in a reaction.
  4. The gradual destruction of metals due to reactions with air or moisture.
  5. Substances formed as a result of a chemical reaction.
  6. A chemical reaction in which a compound is broken down by light energy.
  7. A reaction that releases heat energy.

15 Clues: A reaction that absorbs heat energy. • A reaction that releases heat energy. • Loss of oxygen or gain of hydrogen in a reaction. • Gain of oxygen or loss of hydrogen in a reaction. • Substances formed as a result of a chemical reaction. • Substances that undergo chemical change in a reaction. • A reaction where one element replaces another in a compound. • ...

Chemical Reactions Unit 4 Vocab 2024-12-02

Chemical Reactions Unit 4 Vocab crossword puzzle
Across
  1. chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
  2. condition in the course of a reversible chemical reaction in which no net change in the amounts of reactants and products occurs.
  3. a number assigned to an element in chemical combination which represents the number of electrons lost
  4. a substance that results from a chemical reaction
  5. a reaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously.
  6. a chemical reaction where electrons are transferred between atoms, with one atom losing electrons (oxidized) and another atom gaining electrons (reduced)
Down
  1. gains electrons and is reduced in a chemical reaction
  2. a chemical reaction that involves the release of energy in the form of heat or light.
  3. cause (a substance) to be deposited in solid form from a solution.
  4. loses electrons and is oxidized in a chemical reaction
  5. a chemical reaction where a substance gains electrons, resulting in a decrease in its oxidation state
  6. a list of elements in decreasing order of their reactivity
  7. expresses the relationship between products and reactants of a reaction at equilibrium with respect to a specific unit.
  8. a substance that takes part in and undergoes change during a reaction.
  9. a protein that acts as a biological catalyst

15 Clues: a protein that acts as a biological catalyst • a substance that results from a chemical reaction • gains electrons and is reduced in a chemical reaction • loses electrons and is oxidized in a chemical reaction • a list of elements in decreasing order of their reactivity • cause (a substance) to be deposited in solid form from a solution. • ...

Chemistry crossword 2025-05-06

Chemistry crossword crossword puzzle
Across
  1. the amount of matter
  2. a substance that increases the rate of reaction
  3. measures average particle energy
  4. attraction between like molecules
  5. what identifies a substance with no change
  6. result of Chemical reaction
  7. Atoms connected by a chemical bond
  8. building block of matter
  9. bonded elements
Down
  1. releases heat
  2. takes up space
  3. process that changes substances
  4. combination of multiple substances
  5. absorbs heat
  6. the capacity to cause change
  7. Alters form, not identity
  8. New substance forms
  9. Substance consumed in a chemical reaction

18 Clues: absorbs heat • releases heat • takes up space • bonded elements • New substance forms • the amount of matter • building block of matter • Alters form, not identity • result of Chemical reaction • the capacity to cause change • process that changes substances • measures average particle energy • attraction between like molecules • combination of multiple substances • ...

Grade 8 Midterms Crossword Puzzle 2020-01-04

Grade 8 Midterms Crossword Puzzle crossword puzzle
Across
  1. This type of heterogeneous mixture can separate when allowed to stand
  2. A type of property of a substance that describes its ability to change into another substance
  3. A type of reaction that releases heat
  4. A material which decreases the rate of a chemical reaction
  5. Anything that has mass and takes up space
  6. A substance you have at the beginning of a chemical reaction
  7. A type of reaction that absorbs heat
  8. This is another type of homogeneous mixture that does not settle out when left standing
  9. A mixture where there is very little solute
  10. The amount of a substance in a given volume
  11. Able to dissolve
Down
  1. The amount of matter in an object
  2. The end result of a chemical reaction
  3. How hot something is
  4. A type of property of a substance that describes its shape, size or appearance.
  5. A mixture where the amount of solute has reached the maximum limit
  6. Increases reaction rate by lowering activation energy
  7. A mixture where there is a lot of solute
  8. A type of mixture where the particles are spread evenly
  9. Unable to dissolve
  10. A type of mixture where the particles are unevenly spread
  11. A type of chemical reaction where a compound breaks down into simpler products
  12. A type of chemical reaction where two or more elements/compounds combine
  13. This type of homogeneous mixture often appears cloudy
  14. The measure of the mass of a material in a given volume

25 Clues: Able to dissolve • Unable to dissolve • How hot something is • The amount of matter in an object • A type of reaction that absorbs heat • The end result of a chemical reaction • A type of reaction that releases heat • A mixture where there is a lot of solute • Anything that has mass and takes up space • A mixture where there is very little solute • ...

Chemical Reactions and Equation By: Abbas Mustufa 2025-05-01

Chemical Reactions and Equation By: Abbas Mustufa crossword puzzle
Across
  1. | A type of reaction involving both the loss and gain of electrons.
  2. | An insoluble solid that separates from a liquid solution during a reaction.
  3. | The starting materials that undergo change in a chemical reaction.
  4. | A process where a substance loses electrons.
  5. | A reaction where one element or group replaces another in a compound.
  6. | A chemical reaction where a single compound breaks down into two or more simpler substances.
  7. | The process of ensuring that the number of atoms of each element is the same on both sides of a chemical equation.
Down
  1. | A reaction that absorbs energy from its surroundings, often in the form of heat.
  2. | A reaction that releases energy in the form of heat.
  3. | A process where a substance gains electrons.
  4. | A symbolic representation of a chemical reaction.
  5. | Describes a substance dissolved in water.
  6. change | Forms a new substance
  7. | The substances formed as a result of a chemical reaction.
  8. | A substance that increases the rate of a reaction without being consumed.

15 Clues: change | Forms a new substance • | Describes a substance dissolved in water. • | A process where a substance gains electrons. • | A process where a substance loses electrons. • | A symbolic representation of a chemical reaction. • | A reaction that releases energy in the form of heat. • | The substances formed as a result of a chemical reaction. • ...

chapter seventeen 2022-05-16

chapter seventeen crossword puzzle
Across
  1. a catalyst that exists in the same physical state as the reaction it catalyzes
  2. The mathematical relationship between the rate of a chemical reaction at a given temperature
  3. for a reactant describes how the rate is affected by the concentration of that reactant
  4. Term used to describe an activated complex because the activated complex is as likely to form reactants as it is to form
  5. a short-lived, unstable arrangement of atoms that may break apart and re-form
  6. The slowest elementary step in a complex reaction
  7. a substance that slows down the reaction rate of a chemical reaction or prevents a chemical reaction from happening
  8. a substance produced in one elementary step of a complex reaction
  9. states that atoms, ions, and molecules must collide in order to react
  10. a chemical reaction that consists of two or more elementary steps
Down
  1. a substance that increases the rate of a chemical reaction by lowering activation energies
  2. determines the reaction order by comparing the initial rates of a reaction carried out with varying reactant concentrations
  3. The change in concentration of a reactant or product per unit time
  4. a catalyst that exists in a different physical state than the reaction it catalyzes
  5. the rate of decomposition at a specific time
  6. The complete sequence of elementary steps that make up a complex reaction
  7. the minimum amount of energy required by reacting particles in order to form the activated complex
  8. A numerical value that relates reaction rate and concentration of reactant at a specific temperature

18 Clues: the rate of decomposition at a specific time • The slowest elementary step in a complex reaction • a substance produced in one elementary step of a complex reaction • a chemical reaction that consists of two or more elementary steps • The change in concentration of a reactant or product per unit time • ...

chapter seventeen 2022-05-16

chapter seventeen crossword puzzle
Across
  1. a catalyst that exists in the same physical state as the reaction it catalyzes
  2. The mathematical relationship between the rate of a chemical reaction at a given temperature
  3. for a reactant describes how the rate is affected by the concentration of that reactant
  4. Term used to describe an activated complex because the activated complex is as likely to form reactants as it is to form
  5. a short-lived, unstable arrangement of atoms that may break apart and re-form
  6. The slowest elementary step in a complex reaction
  7. a substance that slows down the reaction rate of a chemical reaction or prevents a chemical reaction from happening
  8. a substance produced in one elementary step of a complex reaction
  9. states that atoms, ions, and molecules must collide in order to react
  10. a chemical reaction that consists of two or more elementary steps
Down
  1. a substance that increases the rate of a chemical reaction by lowering activation energies
  2. determines the reaction order by comparing the initial rates of a reaction carried out with varying reactant concentrations
  3. The change in concentration of a reactant or product per unit time
  4. a catalyst that exists in a different physical state than the reaction it catalyzes
  5. the rate of decomposition at a specific time
  6. The complete sequence of elementary steps that make up a complex reaction
  7. the minimum amount of energy required by reacting particles in order to form the activated complex
  8. A numerical value that relates reaction rate and concentration of reactant at a specific temperature

18 Clues: the rate of decomposition at a specific time • The slowest elementary step in a complex reaction • a substance produced in one elementary step of a complex reaction • a chemical reaction that consists of two or more elementary steps • The change in concentration of a reactant or product per unit time • ...

Vocabulary 2014-06-05

Vocabulary crossword puzzle
Across
  1. Energy that can be transferred due to the molecular movement.
  2. Heat required to raise the temp.
  3. When a reaction measures heat.
  4. Stored energy.
  5. Energy and mass are related.
  6. Tells how much heat and work were added or removed to the substance.
  7. The science of measuring the heat involvement during chemical or physical changes and reactions.
  8. Measuring the amount of heat involved in a chemical reaction.
  9. Energy due to motion.
  10. The study of energy transfer in the form of heat during chemical reactions and physical changes.
Down
  1. The heat involved during a chemical reaction.
  2. Amount of energy required to melt a solid into a liquid.
  3. Energy contained in Chemical bonds of various matter.
  4. amount of energy required to turn a liquid into a gas (vaporize).
  5. A measure of molecule movement.
  6. The heat involved during a combustion reaction
  7. When a reaction absorbs heat.
  8. Two units of heated energy.
  9. SI Unit of work or energy.
  10. The ability to do work.

20 Clues: Stored energy. • Energy due to motion. • The ability to do work. • SI Unit of work or energy. • Two units of heated energy. • Energy and mass are related. • When a reaction absorbs heat. • When a reaction measures heat. • A measure of molecule movement. • Heat required to raise the temp. • The heat involved during a chemical reaction. • ...

Chemistry 2014-11-04

Chemistry crossword puzzle
Across
  1. Substance made up of only
  2. Oxygen ion air reacts with metal
  3. Liquid to Gas
  4. Positively charged particle in the nucleus of an Atom
  5. Gas to Solid
  6. Anything that has mass and occupies space
  7. Ability of a substance to be dissolved in another
  8. Horizontal row of elements in the periodic table
  9. characteristics used to describe a substance
  10. Most reactive non-metal
  11. Substance that speeds up the chemical reaction
  12. Made up of one or more substances
Down
  1. Solid to Liquid
  2. Organic Catalyst
  3. Chemical reaction that releases energy
  4. Electrically charged atom
  5. Chemical reaction that absorbs energy
  6. New substance produced in a chemical reaction
  7. substance that resists flow of electricity
  8. Liquid to Solid
  9. Most reactive metal
  10. Material changes state but not composition
  11. Chemical reaction, oxygen reacts with a substance
  12. Solid that can be stretched into a long wire
  13. A substance that reacts with another substance to create a new substance
  14. Workplace Hazardous Materials Information System

26 Clues: Gas to Solid • Liquid to Gas • Solid to Liquid • Liquid to Solid • Organic Catalyst • Most reactive metal • Most reactive non-metal • Substance made up of only • Electrically charged atom • Oxygen ion air reacts with metal • Made up of one or more substances • Chemical reaction that absorbs energy • Chemical reaction that releases energy • Anything that has mass and occupies space • ...

Caleb Anthony Bagi Chapter 13 Crossword 2016-10-12

Caleb Anthony Bagi Chapter 13 Crossword crossword puzzle
Across
  1. description of a solution in which the hydroxide ion concentration is higher than the hydronium ion concentration
  2. a rapid exothermic oxidation-reduction reaction between a material and molecular oxygen
  3. a measure of the acidity of a solution;equal to the negative longathm of the hydronium ion concentration
  4. description of a solution in which the hydronium ion concentration is higher than than the hydroxide ion concentration
  5. a description of a chemical reaction in which there is a net absorption of energy
  6. description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration
  7. the minimum energy required in order for a chemical reaction to proceed
  8. a description of a chemical reaction in which there is a net release of energy
  9. the reacting substances in a chemical reaction
Down
  1. any substance that increases the rate of a chemical reaction without itself being consumed by the reaction
  2. a representation of a chemical reaction in which reactants are written to the left of an arrow that points toward the products on the right
  3. the new materials formed in a chemical reaction
  4. a polyatomic ion made by removing a proton from a water molecule
  5. a measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases
  6. the amount of energy required to pull two bonded atoms apart
  7. a substance that donates hydrogen ions

16 Clues: a substance that donates hydrogen ions • the reacting substances in a chemical reaction • the new materials formed in a chemical reaction • the amount of energy required to pull two bonded atoms apart • a polyatomic ion made by removing a proton from a water molecule • the minimum energy required in order for a chemical reaction to proceed • ...

Chemistry spelling words 2015-02-02

Chemistry spelling words crossword puzzle
Across
  1. capable of being dissolved
  2. a substance that undergoes a chemical change in any reaction
  3. a rapid oxidation accompanied by heat and usually light
  4. substances that cannot be separated into simpler substances by chemical means
  5. opposite to exothermic
  6. a chemical reaction in which an acid and a base interact with the formation of a salt
  7. a pure substance composed of two or more elements
  8. incapable of being dissolved
  9. the smallest component of an element..
Down
  1. a substance obtained from another substance through chemical change
  2. formed of matter deposited in or by water
  3. a reaction or process with the release of heat
  4. the smallest physical unit of an element or compound
  5. the separation of a substance into basic elements or substances
  6. a substance produced by or used in a chemical process
  7. the principal element of anything
  8. a product of corroding as rust
  9. the reciprocal action of chemical agents upon each other; chemical change
  10. a compound usually having a sour taste
  11. a substance that indicates the presence or concentration of a certain constituent

20 Clues: opposite to exothermic • capable of being dissolved • incapable of being dissolved • a product of corroding as rust • the principal element of anything • a compound usually having a sour taste • the smallest component of an element.. • formed of matter deposited in or by water • a reaction or process with the release of heat • ...

Unit 5 Chemistry Vocabulary Crossword Puzzle 2023-11-02

Unit 5 Chemistry Vocabulary Crossword Puzzle crossword puzzle
Across
  1. The process of naming chemical compounds with different names so they can be easily identified.
  2. The artificial execution of chemical reactions to obtain one or several products.
  3. The process of simplifying a single chemical entity into two or more fragments.
  4. All ions have this.
  5. This type of equation is the symbolic representation of a chemical reaction in the form of symbols and chemical formulas.
  6. This type of equation is the simple form of a chemical reaction.
  7. A number placed in front of a chemical symbol or formula that shows how many atoms or molecules of the substance are involved in the reaction.
Down
  1. An equation for a chemical reaction in which the number of atoms for each element in the reaction and the total charge are the same for both the reactants and the products is this type of equation.
  2. An ion with more than one atom is called this.
  3. This states how many atoms of a compound are in a substance.
  4. Any organic chemical made up of only the elements carbon and hydrogen.
  5. The result of a chemical reaction is called this.
  6. A substance that undergoes change during a reaction.
  7. A high-temperature chemical reaction between a fuel and an oxidant.
  8. This arrow is placed after the reactants.

15 Clues: All ions have this. • This arrow is placed after the reactants. • An ion with more than one atom is called this. • The result of a chemical reaction is called this. • A substance that undergoes change during a reaction. • This states how many atoms of a compound are in a substance. • This type of equation is the simple form of a chemical reaction. • ...

Chemical reaction and equation - Nahush Chaudhari 2025-04-28

Chemical reaction and equation - Nahush Chaudhari crossword puzzle
Across
  1. A reaction that absorbs heat energy.
  2. A reaction where a more reactive element replaces a less reactive one from its compound.
  3. An insoluble solid formed during a reaction in solution.
  4. A substance formed after a chemical reaction.
  5. Spoiling of fats and oils due to oxidation, often leading to a bad smell and taste.
  6. A reaction where a substance gains oxygen or loses hydrogen.
  7. A substance that starts a chemical reaction.
Down
  1. A biological exothermic reaction where glucose is broken down to release energy.
  2. The slow formation of a reddish-brown coating on iron.
  3. An unbalanced chemical equation is also called this type of equation.
  4. A reaction where a single substance breaks down into two or more products.
  5. A chemical equation where the number of atoms of each element is equal on both sides.
  6. A reaction that releases heat energy.
  7. Breaking a compound using electric current.
  8. A reaction where two or more substances combine to form a single product.
  9. A reaction where a substance loses oxygen or gains hydrogen.
  10. A substance that speeds up a reaction without itself being consumed.
  11. Gradual destruction of metals by reacting with atmospheric substances like oxygen.

18 Clues: A reaction that absorbs heat energy. • A reaction that releases heat energy. • Breaking a compound using electric current. • A substance that starts a chemical reaction. • A substance formed after a chemical reaction. • The slow formation of a reddish-brown coating on iron. • An insoluble solid formed during a reaction in solution. • ...

Physical and Chemical Change 2018-05-30

Physical and Chemical Change crossword puzzle
Across
  1. columns of the periodic table
  2. substance obtained at the end of a chemical reaction
  3. rows of element in the periodic table
  4. a single atom
  5. table elements in a table according to their chemical properties
  6. substance made by one type of atom, e.g carbon
  7. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  8. a substance that is made up of 2 or more atoms
  9. element
  10. a solid to a liquid
  11. a solid into a gas
  12. a chemical that helps make a chemical reaction
  13. the damage cause to a metal
  14. it can turn into a gas
  15. three-dimensional arrangement of a particle in a pattern
Down
  1. 2 atoms remain attracted to each other
  2. chain molecule made of many units
  3. liquid into a gas
  4. molecule that contains 2 atom
  5. amount of substance in a set volume
  6. reaction produces new chemicals
  7. liquid turns into gas
  8. gas turns into a liquid
  9. 2 or more atoms that are bonded together
  10. theory particles that collide with each other
  11. particle that cannot be created, destroyed or broken
  12. gas that cannot be smelt
  13. solid or liquid at room temperature
  14. substance used before the chemical reaction

29 Clues: element • a single atom • liquid into a gas • a solid into a gas • a solid to a liquid • liquid turns into gas • it can turn into a gas • gas turns into a liquid • gas that cannot be smelt • the damage cause to a metal • columns of the periodic table • molecule that contains 2 atom • reaction produces new chemicals • chain molecule made of many units • amount of substance in a set volume • ...

chapter seventeen 2022-05-16

chapter seventeen crossword puzzle
Across
  1. a catalyst that exists in the same physical state as the reaction it catalyzes
  2. The mathematical relationship between the rate of a chemical reaction at a given temperature
  3. for a reactant describes how the rate is affected by the concentration of that reactant
  4. Term used to describe an activated complex because the activated complex is as likely to form reactants as it is to form
  5. a short-lived, unstable arrangement of atoms that may break apart and re-form
  6. The slowest elementary step in a complex reaction
  7. a substance that slows down the reaction rate of a chemical reaction or prevents a chemical reaction from happening
  8. a substance produced in one elementary step of a complex reaction
  9. states that atoms, ions, and molecules must collide in order to react
  10. a chemical reaction that consists of two or more elementary steps
Down
  1. a substance that increases the rate of a chemical reaction by lowering activation energies
  2. determines the reaction order by comparing the initial rates of a reaction carried out with varying reactant concentrations
  3. The change in concentration of a reactant or product per unit time
  4. a catalyst that exists in a different physical state than the reaction it catalyzes
  5. the rate of decomposition at a specific time
  6. The complete sequence of elementary steps that make up a complex reaction
  7. the minimum amount of energy required by reacting particles in order to form the activated complex
  8. A numerical value that relates reaction rate and concentration of reactant at a specific temperature

18 Clues: the rate of decomposition at a specific time • The slowest elementary step in a complex reaction • a substance produced in one elementary step of a complex reaction • a chemical reaction that consists of two or more elementary steps • The change in concentration of a reactant or product per unit time • ...

chapter seventeen 2022-05-16

chapter seventeen crossword puzzle
Across
  1. a catalyst that exists in the same physical state as the reaction it catalyzes
  2. The mathematical relationship between the rate of a chemical reaction at a given temperature
  3. for a reactant describes how the rate is affected by the concentration of that reactant
  4. Term used to describe an activated complex because the activated complex is as likely to form reactants as it is to form
  5. a short-lived, unstable arrangement of atoms that may break apart and re-form
  6. The slowest elementary step in a complex reaction
  7. a substance that slows down the reaction rate of a chemical reaction or prevents a chemical reaction from happening
  8. a substance produced in one elementary step of a complex reaction
  9. states that atoms, ions, and molecules must collide in order to react
  10. a chemical reaction that consists of two or more elementary steps
Down
  1. a substance that increases the rate of a chemical reaction by lowering activation energies
  2. determines the reaction order by comparing the initial rates of a reaction carried out with varying reactant concentrations
  3. The change in concentration of a reactant or product per unit time
  4. a catalyst that exists in a different physical state than the reaction it catalyzes
  5. the rate of decomposition at a specific time
  6. The complete sequence of elementary steps that make up a complex reaction
  7. the minimum amount of energy required by reacting particles in order to form the activated complex
  8. A numerical value that relates reaction rate and concentration of reactant at a specific temperature

18 Clues: the rate of decomposition at a specific time • The slowest elementary step in a complex reaction • a substance produced in one elementary step of a complex reaction • a chemical reaction that consists of two or more elementary steps • The change in concentration of a reactant or product per unit time • ...

Cracking the Code: Chemical Reactions & Equations 2024-05-15

Cracking the Code: Chemical Reactions & Equations crossword puzzle
Across
  1. Principle stating mass is neither created nor destroyed in a chemical reaction
  2. Reaction where ions are exchanged between two compounds
  3. Reactions in which heat is released along with the formation of products
  4. Symbolic representation of a chemical reaction
  5. The new substance formed during the reaction
  6. Reactions in which energy is absorbed
  7. Reaction where a single compound breaks down into simpler substances
  8. Equation with unequal numbers of each atom of each element on both sides
  9. Decomposition of a substance using electric current
  10. List of elements ordered by their reactivity
Down
  1. Gain of oxygen in a reaction
  2. Equation with equal numbers of each atom of each element on both sides
  3. The substances that undergo chemical change in the reaction
  4. Reaction where two or more substances combine to form a single new compound
  5. Reaction involving oxygen and producing heat and light
  6. Loss of oxygen in a reaction
  7. Gradual destruction of metals due to reaction with moisture, acids, etc.
  8. The solid insoluble substance formed
  9. Reaction where a more reactive element displaces a lesser reactive metal in a compound
  10. Formation of iron oxide due to reaction with oxygen and moisture

20 Clues: Gain of oxygen in a reaction • Loss of oxygen in a reaction • The solid insoluble substance formed • Reactions in which energy is absorbed • The new substance formed during the reaction • List of elements ordered by their reactivity • Symbolic representation of a chemical reaction • Decomposition of a substance using electric current • ...

Chemical Reactions 2022-05-12

Chemical Reactions crossword puzzle
Across
  1. A characteristic of a substance that describes how it can form a new substance. (chemical________)
  2. A chemical reaction that requires heat energy in order to proceed. (___________reaction)
  3. A substance consisting of more than one element. (chemical________)
  4. A substance that reacts with another substance in a chemical reaction.
  5. The number before a chemical formula that shows how many molecules are involved in a chemical reaction.
  6. A substance that slows down a chemical reaction or prevents it from occurring.
  7. Any change in size, shape, or state of matter in which the identity of the substance remains the same.
Down
  1. A chemical reaction in which energy is primarily given off in the form of heat. (__________reaction)
  2. A number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound.
  3. A process where substances react with each other and form new substances with other properties. (chemical________)
  4. A substance formed in a chemical reaction.
  5. a chemical compound with oxygen.
  6. A change of one substance into a new substance (chemical_____)
  7. The loss of electrons from the atoms of a substance.
  8. A substance that speeds up a chemical reaction without being permanently changed itself.

15 Clues: a chemical compound with oxygen. • A substance formed in a chemical reaction. • The loss of electrons from the atoms of a substance. • A change of one substance into a new substance (chemical_____) • A substance consisting of more than one element. (chemical________) • A substance that reacts with another substance in a chemical reaction. • ...

Chemistry - Year 10 2020-08-25

Chemistry - Year 10 crossword puzzle
Across
  1. A reaction in which two or more reactants bond together to form a single product
  2. A reaction in which a substance burns in the presence of oxygen, producing heat and light
  3. A reaction that consumes heat energy, and so feels cold
  4. The law of conservation of mass states that _____ cannot be created or destroyed
  5. A diagram in which the electron configuration is drawn
  6. The outermost electron shell
  7. Groups of elements on the periodic table that run horizontally; the number tells you how many electron shells the atoms have
  8. The type of combustion in which the flame does not have access to enough oxygen; the flame is cool, yellow and ‘dirty’ (it produces solid carbon)
  9. A reaction that produces heat
  10. A reaction in which two soluble chemicals produce an insoluble solid
  11. The energy of movement
  12. A chemical that speeds up a chemical reaction, without using being used up in the reaction
  13. The poisonous gas produced by incomplete combustion
  14. The scientific word for stirring or shaking
  15. A reaction in which an acid and a base neutralise each other, forming a salt and water
Down
  1. The scientific word for how many atoms are found in a chemical; if we increase the number of atoms then the rate of the reaction will be increased
  2. If we decrease the space between ________ , the rate of the chemical reaction will be increased
  3. The chemicals found on the left-hand side of a chemical equation
  4. A reaction in which a single reactant breaks down into two or more products
  5. A way of summarising what happens in a chemical reaction
  6. The term used to describe how many electrons an element has, and which shells they are found in
  7. The region in the middle of an atom where the protons and neutrons are found
  8. A reaction in which oxygen combines with a metal to form a metal oxide; rust is an example
  9. The chemical reaction that happens in the cells of your body; glucose and oxygen are combined to form carbon dioxide, water and energy
  10. The solid formed in a precipitation reaction
  11. Groups of elements on the periodic table that run vertically; the number tells you how many electrons are found in their outermost shells
  12. The chemicals found on the right-hand side of a chemical equation
  13. The energy found in chemical bonds
  14. The number that tells you how many electrons an element has (assuming it isn’t an ion)
  15. The type of combustion in which the flame has access to plenty of oxygen; the flame is hot, blue, and produces carbon dioxide and water

30 Clues: The energy of movement • The outermost electron shell • A reaction that produces heat • The energy found in chemical bonds • The scientific word for stirring or shaking • The solid formed in a precipitation reaction • The poisonous gas produced by incomplete combustion • A diagram in which the electron configuration is drawn • ...

Unit 5: Reactions and Stoichiometry 2016-06-16

Unit 5: Reactions and Stoichiometry crossword puzzle
Across
  1. a chemical compound that increases the concentration of hydrogen ions in an aqueous solution
  2. the principle that states that the total amount of matter is constant during any chemical or physical change, matter is neither created nor destroyed
  3. a chemical reaction in which each side of the equation has the same number of atoms of each element
  4. composition / the percent by mass of each element in a compound
  5. an organic compound composed only of carbon and hydrogen
  6. a chemical reaction in which one atom gains electrons while one atom loses electrons
  7. / An ionic compound made up of a cation from a base and an anion from an acid
Down
  1. base / Proton (H+) acceptor
  2. reaction / A reaction in which a single compound breaks down to form two or more simpler substances (AB-->A+B)
  3. a chemical change in which one element replaces a second element in a compound (A+Bx-->Ax+B)
  4. a substance that increases the concentration of hydroxide ions in an aqueous solution
  5. / the SI unit of amount of substance
  6. the rate at which reactants change into products over time
  7. number of representative particles in a mole, 6.02x10^23
  8. A solid that forms from a solution during a chemical reaction
  9. the volume occupied by 1 mole of a gas at STP
  10. number / positive or negative number that indicates how many electrons an atom has gained, lost, or shared to become stable
  11. / A substance produced in a chemical reaction
  12. a chemical substance that is present at the start of a chemical reaction

19 Clues: base / Proton (H+) acceptor • / the SI unit of amount of substance • the volume occupied by 1 mole of a gas at STP • / A substance produced in a chemical reaction • number of representative particles in a mole, 6.02x10^23 • an organic compound composed only of carbon and hydrogen • the rate at which reactants change into products over time • ...

Chapter 7 and 13 2023-05-09

Chapter 7 and 13 crossword puzzle
Across
  1. representations of chemical reactions
  2. construction of complex chemical compounds from simpler ones
  3. number placed in front of a chemical symbol or formula
  4. chemical reaction in which one reactant breaks down into two or more products
  5. substance that takes part in and undergoes change during a reaction
  6. substance that increases the rate of a reaction without itself being consumed
  7. reactions in which the reactants absorb heat energy from the surroundings to form products
  8. reaction in which the positive and negative ions
  9. unit of measurement in the International System of Units
Down
  1. has no fixed shape, but adapts its surface to the shape of its container
  2. dimension taken through an object or body of material
  3. species formed from chemical reactions
  4. fluid can be either a liquid or a gas.
  5. for assigning work
  6. chemical bond between two atoms
  7. chemical reaction that produces heat (has a negative
  8. conversion factor between mass and volume
  9. It is generated by the interaction and contact of a solid body with a fluid

18 Clues: for assigning work • chemical bond between two atoms • representations of chemical reactions • species formed from chemical reactions • fluid can be either a liquid or a gas. • conversion factor between mass and volume • reaction in which the positive and negative ions • chemical reaction that produces heat (has a negative • ...

Unit 2: Biochemistry Vocab 2022-03-02

Unit 2: Biochemistry Vocab crossword puzzle
Across
  1. complex substance from amino acids
  2. pH of more than 7
  3. DNA
  4. sugar molecules
  5. substance on which an enzyme acts
  6. any of the class of sugars
  7. regulates the rate of chemical reactions
  8. macromolecules found in all cells
  9. molecules that combine to form proteins
  10. composed of DNA
  11. energy for a reaction to occur
Down
  1. organic compounds that are fatty acids
  2. constant pH
  3. undergoes change during a reaction
  4. very large molecules
  5. a carbohydrate
  6. linking two consecutive amino acids
  7. compound that does not have carbon
  8. glucose
  9. rearrangement of the molecular or ionic structure
  10. increases the rate of a chemical reaction
  11. large class of chemical compounds
  12. pH of less than 7
  13. formed from a chemical reaction

24 Clues: DNA • glucose • constant pH • a carbohydrate • sugar molecules • composed of DNA • pH of more than 7 • pH of less than 7 • very large molecules • any of the class of sugars • energy for a reaction to occur • formed from a chemical reaction • substance on which an enzyme acts • large class of chemical compounds • macromolecules found in all cells • undergoes change during a reaction • ...

Chapter 3.2 2021-10-06

Chapter 3.2 crossword puzzle
Across
  1. make up everything
  2. things you see that you can also touch.
  3. an action to make something visible
  4. only physical properties change
  5. when water reaches 120F.
  6. depends on mass
  7. the contents of a balloon
  8. a rock
  9. an energy and chemical change/reaction
  10. substance is different after the change p
  11. a change is size, state, or form.
  12. cutting this the mass stays the same
Down
  1. a chemical reaction in which plants produce sugar and oxygen
  2. needed to bake foods
  3. make up atoms
  4. a French chemist
  5. water and other drinks
  6. a light that is lit by snapping a small plastic ban until the chemical reaction reoccurs
  7. a very hot chemical reaction
  8. a change of color.

20 Clues: a rock • make up atoms • depends on mass • a French chemist • make up everything • a change of color. • needed to bake foods • water and other drinks • when water reaches 120F. • the contents of a balloon • a very hot chemical reaction • only physical properties change • a change is size, state, or form. • an action to make something visible • cutting this the mass stays the same • ...

chemical equations and reactions 2024-05-07

chemical equations and reactions crossword puzzle
Across
  1. When a chemical reaction occurs, these are the substances you start with.
  2. reaction The term for a chemical reaction that absorbs heat from its surroundings.
  3. reaction A chemical reaction where two or more substances combine to form a single new substance.
  4. reaction This type of chemical reaction involves the transfer of electrons between reactants.
  5. equation A representation of a chemical reaction using symbols and formulas.
  6. displacement This type of chemical reaction involves the exchange of ions between two compounds, resulting in the formation of two new compounds.
  7. This substance speeds up the rate of a chemical reaction without being consumed in the process.
Down
  1. reaction A type of chemical reaction where a single compound breaks down into two or more simpler substances
  2. agent The substance that causes oxidation in a redox reaction.
  3. reaction This is the term for a chemical reaction that releases heat to its surroundings.
  4. These are the substances produced by a chemical reaction.
  5. reaction This process involves the rearrangement of atoms to form new substances.
  6. of Conservation of Mass The number of atoms of each element must be the same on both sides of this in a balanced chemical equation.

13 Clues: These are the substances produced by a chemical reaction. • When a chemical reaction occurs, these are the substances you start with. • agent The substance that causes oxidation in a redox reaction. • equation A representation of a chemical reaction using symbols and formulas. • ...

Chapter Two Vocabulary 2020-09-27

Chapter Two Vocabulary crossword puzzle
Across
  1. substance that decreases activation energy and increases reaction rate in a chemical reaction.
  2. attraction between molecules of different substances.
  3. energy amount of energy need to break a bond between two particular atoms; or the amount of energy released when a bond forms between two particular atoms.
  4. acid molecule that makes up proteins; composed of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.
  5. chemical reaction that yields a net release of energy in the form of heat.
  6. substance formed by a chemical reaction.
  7. measurement of acidity; related to free hydrogen ion concentration in solution.
  8. acid hydrocarbon chain often bonded to glycerol in a lipid.
  9. compound that donates a proton (H+) when dissovled in solution.
  10. atom that has gained or lost one or more electrons
  11. bond chemical bond formed through the electrical force between oppositely charged ions.
  12. protein that catalyzes chemical reactions for organisms.
  13. two or more atoms held together by covalent bonds; not necessarily a compound.
  14. substance that dissovles in a solvent and is present at a lower concentration that the solvent.
  15. condition in which reactants and products of a chemical reaction are formed at the same rate.
  16. reactant in a chemical reaction upon which an enzyme acts.
  17. bond chemical bond formed when two atoms share one or more pairs of electrons.
  18. reaction process by which substances change into different substances through the breaking and forming of chemical bonds.
  19. large, carbon-based molecule formed by monomers.
Down
  1. molecule composed of carbon, hydrogen, and oxygen; includes sugars and starches.
  2. mixture that is consistent throughout; also called a homogenous mixture.
  3. substance in which solutes dissovled and that is present in greater concentration in a solution.
  4. substance that is changed by a chemical reaction.
  5. bond attraction between a slightly positive hydrogen atom and a slightly negative atom.
  6. substance made of atoms of different elements that are bonded together in a particular ratio.
  7. energy energy input necessary to initiate a chemical reaction.
  8. attraction between molecules of the same substance.
  9. acid polymer of nucleotides; the genetic material of organisms.
  10. compound that accepts a proton (H+) when dissovled in solution.
  11. molecular subunit of a polymer.
  12. chemical reaction that requires a net input of energy.
  13. substance made of only one type of atom that cannot be broken down by chemical means.
  14. polymer composed of amino acids linked by peptide bonds folds into a particular structure depending on bonds between amino acids.
  15. nonpolar molecule composed of carbon, hydrogen, and oxygen; includes fats and oils.
  16. smalles basic unit of matter.

35 Clues: smalles basic unit of matter. • molecular subunit of a polymer. • substance formed by a chemical reaction. • large, carbon-based molecule formed by monomers. • substance that is changed by a chemical reaction. • atom that has gained or lost one or more electrons • attraction between molecules of the same substance. • ...

Science 2023-01-09

Science crossword puzzle
Across
  1. reaction a chemical reaction in which a compound breaks down into two or more simpler substances
  2. equation a representation of a chemical reaction in which the reactants and products are expressed as formulas
  3. reaction a chemical reaction that releases energy to its surroundings
  4. mass the mass of one mole of a substance
  5. reaction a chemical reaction that absorbs energy from its surroundings
  6. substances that undergo change in a chemical reaction
  7. numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
Down
  1. reaction a chemical reaction in which one element takes the place of another element in a compound
  2. reaction a chemical reaction in which two or more substances react to form a single substance
  3. reaction a chemical reaction in which two compounds exchange positive ions and form new compounds
  4. an amount of a substance that contains approximately 6.02 × 1023 particles of the substance
  5. new substances formed as a result of a chemical reaction
  6. energy the energy stored in chemical bonds

13 Clues: mass the mass of one mole of a substance • energy the energy stored in chemical bonds • substances that undergo change in a chemical reaction • new substances formed as a result of a chemical reaction • reaction a chemical reaction that releases energy to its surroundings • reaction a chemical reaction that absorbs energy from its surroundings • ...

Chapter 7 Vocabulary 2023-01-04

Chapter 7 Vocabulary crossword puzzle
Across
  1. reaction a chemical reaction in which a compound breaks down into two or more simpler substances
  2. equation a representation of a chemical reaction in which the reactants and products are expressed as formulas
  3. reaction a chemical reaction that releases energy to its surroundings
  4. mass the mass of one mole of a substance
  5. reaction a chemical reaction that absorbs energy from its surroundings
  6. substances that undergo change in a chemical reaction
  7. numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
Down
  1. reaction a chemical reaction in which one element takes the place of another element in a compound
  2. reaction a chemical reaction in which two or more substances react to form a single substance
  3. reaction a chemical reaction in which two compounds exchange positive ions and form new compounds
  4. an amount of a substance that contains approximately 6.02 x 1023 particles of the substance
  5. new substances formed as a result of a chemical reaction
  6. energy the energy stored in chemical bonds

13 Clues: mass the mass of one mole of a substance • energy the energy stored in chemical bonds • substances that undergo change in a chemical reaction • new substances formed as a result of a chemical reaction • reaction a chemical reaction that releases energy to its surroundings • reaction a chemical reaction that absorbs energy from its surroundings • ...

Chemical reactio 2026-02-24

Chemical reactio crossword puzzle
Across
  1. change An endothermic change transfers energy from the surroundings.
  2. A chemical reaction in which substances react with oxygen to form oxides.
  3. A material that burns to transfer useful energy.
  4. of mass In a chemical reaction, the total mass of reactants is equal to the total mass of products. This is conservation of mass. Mass is conserved in chemical reactions and in physical changes.
  5. A substance that is made in a chemical reaction.
  6. The chance of damage or injury from hazard.
  7. A possible source of danger.
  8. symbol equation In a balanced symbol equation, chemical formulae represent the reactants and products. The equation shows how atoms are rearranged, and gives the relative amounts of reactants and products.
Down
  1. Some fuels are non-renewable. They form over millions of years, and will one day run out.
  2. A chemical reaction in which a substance reacts quickly with oxygen and gives out light and heat.
  3. A chemical reaction in which a compound breaks down to form simpler compounds and/or elements.
  4. reaction A change in which atoms are rearranged to create new substances.
  5. change A change that is reversible, in which new substances are not made. Examples of physical changes include changes of state, and dissolving.
  6. fuel A fuel made from the remains of animals and plants that died millions of years ago. Fossil fuels include coal, oil, and natural gas.
  7. change An exothermic change transfers energy to the surroundings.
  8. equation A way of representing a chemical reaction simply. The reactants are on the lefts of an arrow, and the products are on the right. The arrow means reacts to make.
  9. A variable that can only have whole-number values.
  10. A starting substance in a chemical reaction.

18 Clues: A possible source of danger. • The chance of damage or injury from hazard. • A starting substance in a chemical reaction. • A material that burns to transfer useful energy. • A substance that is made in a chemical reaction. • A variable that can only have whole-number values. • change An exothermic change transfers energy to the surroundings. • ...

Chapter Two Vocabulary 2020-09-28

Chapter Two Vocabulary crossword puzzle
Across
  1. substance that decreases activation energy and increases reaction rate in a chemical reaction.
  2. attraction between molecules of different substances.
  3. energy amount of energy needed to break a bond between two particular atoms; or the amount of energy released when a bond forms between two particular atoms.
  4. acid molecule that makes up proteins; composed of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur.
  5. chemical reaction that yields a net release of energy in the form of heat.
  6. substance formed by a chemical reaction.
  7. measurement of acidity; related to free hydrogen ion concentration in solution.
  8. acid hydrocarbon chain often bonded to glycerol in a lipid.
  9. compound that donates a proton (H+) when dissolved in solution.
  10. atom that has gained or lost one or more electrons
  11. bond chemical bond formed through the electrical force between oppositely charged ions.
  12. protein that catalyzes chemical reactions for organisms.
  13. two or more atoms held together by covalent bonds; not necessarily a compound.
  14. substance that dissovles in a solvent and is present at a lower concentration that the solvent.
  15. condition in which reactants and products of a chemical reaction are formed at the same rate.
  16. reactant in a chemical reaction upon which an enzyme acts.
  17. bond chemical bond formed when two atoms share one or more pairs of electrons.
  18. reaction process by which substances change into different substances through the breaking and forming of chemical bonds.
  19. large, carbon-based molecule formed by monomers.
Down
  1. molecule composed of carbon, hydrogen, and oxygen; includes sugars and starches.
  2. mixture (solvent + solute) that is consistent throughout; also called a homogenous mixture.
  3. substance in which solutes dissolved and that is present in greater concentration in a solution.
  4. substance that is changed by a chemical reaction.
  5. bond attraction between a slightly positive hydrogen atom and a slightly negative atom.
  6. substance made of atoms of different elements that are bonded together in a particular ratio.
  7. energy energy input necessary to initiate a chemical reaction.
  8. attraction between molecules of the same substance.
  9. acid polymer of nucleotides; the genetic material of organisms.
  10. compound that accepts a proton (H+) when dissolved in solution.
  11. molecular subunit of a polymer.
  12. chemical reaction that requires a net input of energy.
  13. substance made of only one type of atom that cannot be broken down by chemical means.
  14. polymer composed of amino acids linked by peptide bonds; folds into a particular structure depending on bonds between amino acids.
  15. nonpolar molecule composed of carbon, hydrogen, and oxygen; includes fats and oils.
  16. smallest basic unit of matter.

35 Clues: smallest basic unit of matter. • molecular subunit of a polymer. • substance formed by a chemical reaction. • large, carbon-based molecule formed by monomers. • substance that is changed by a chemical reaction. • atom that has gained or lost one or more electrons • attraction between molecules of the same substance. • ...

Vocabulary 2023-01-03

Vocabulary crossword puzzle
Across
  1. reaction - a chemical reaction in which a compound breaks down into two or more simpler substances
  2. equation - a representation of a chemical reaction in which the reactants and products are expressed as formulas
  3. reaction - a chemical reaction that releases energy to its surroundings
  4. mass - the mass of one mole of a substance
  5. reaction - a chemical reaction that absorbs energy from its surroundings
  6. - substances that undergo change in a chemical reaction
  7. - numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
Down
  1. reaction - a chemical reaction in which one element takes the place of another element in a compound
  2. reaction - a chemical reaction in which two or more substances react to form a single substance
  3. reaction - a chemical reaction in which two compounds exchange positive ions and form new compounds
  4. - an amount of a substance that contains approximately 6.02 x 1023 particles of the substance
  5. - new substances formed as a result of a chemical reaction
  6. energy - the energy stored in chemical bonds

13 Clues: mass - the mass of one mole of a substance • energy - the energy stored in chemical bonds • - substances that undergo change in a chemical reaction • - new substances formed as a result of a chemical reaction • reaction - a chemical reaction that releases energy to its surroundings • reaction - a chemical reaction that absorbs energy from its surroundings • ...

Chapter 7 vocabulary 2023-01-03

Chapter 7 vocabulary crossword puzzle
Across
  1. reaction a chemical reaction in which a compound breaks down into two or more simpler substances
  2. equation a representation of a chemical reaction in which the reactants and products are expressed as formulas
  3. reaction a chemical reaction that releases energy to its surroundings
  4. mass the mass of one mole of a substance
  5. reaction a chemical reaction that absorbs energy from its surroundings
  6. substances that undergo change in a chemical reaction
  7. numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
Down
  1. reaction a chemical reaction in which one element takes the place of another element in a compound
  2. reaction a chemical reaction in which two or more substances react to form a single substance
  3. reaction a chemical reaction in which two compounds exchange positive ions and form new compounds
  4. an amount of a substance that contains approximately 6.02 x 1023 particles of the substance
  5. new substances formed as a result of a chemical reaction
  6. energy the energy stored in chemical bonds

13 Clues: mass the mass of one mole of a substance • energy the energy stored in chemical bonds • substances that undergo change in a chemical reaction • new substances formed as a result of a chemical reaction • reaction a chemical reaction that releases energy to its surroundings • reaction a chemical reaction that absorbs energy from its surroundings • ...

Chapter 11 Vocabulary 2015-01-23

Chapter 11 Vocabulary crossword puzzle
Across
  1. tell in what ratio the substances react or are produced
  2. the arrow that is represented in a chemical equation
  3. equations that show only the soluble, strong electrolytes reacting and omit the spectator ions
  4. when two different compounds each switch parts
  5. item that increases the rate of a chemical reaction
  6. a way of using the formulas to indicate the chemicals that were involved in the chemical reaction
Down
  1. ion that exists as a reactant and a product in a chemical equation
  2. Series list of substances ranked in order of relative reactions
  3. reaction in which a compound takes one part of another,and leaves an element by itself
  4. symbols and amounts of the reactants are separated from those of the products by an equal sign, arrow, or a set of opposing arrows
  5. is a reaction where two or more elements or compounds combine together to form a single compound
  6. what is being changed in a chemical equation
  7. Solution solvent is emerged in water
  8. reaction in which an compound decomposes into two or more parts
  9. equal numbers of each type of atom on each side of the equation
  10. a reaction in which can be reversed
  11. the end result in a chemical equation
  12. reaction involving heat always ending with CO2 and H2O

18 Clues: a reaction in which can be reversed • Solution solvent is emerged in water • the end result in a chemical equation • what is being changed in a chemical equation • when two different compounds each switch parts • item that increases the rate of a chemical reaction • the arrow that is represented in a chemical equation • ...

Types of reactions by sujay yadav 2025-04-23

Types of reactions by sujay yadav crossword puzzle
Across
  1. – A reaction involving the transfer of electrons between two species.
  2. – The substances formed as a result of a chemical reaction.
  3. – The loss of electrons during a reaction.
  4. – A reaction that releases energy in the form of heat.
  5. – A hydrocarbon reacts with oxygen to produce carbon dioxide and water.
  6. – A solid that forms from a solution during a chemical reaction.
  7. Equation – A symbolic representation of a chemical reaction.
  8. – A reaction where two or more substances combine to form a single product.
Down
  1. – A single compound breaks down into two or more simpler substances.
  2. Replacement – One element replaces another in a compound.
  3. – A reaction that absorbs energy from its surroundings.
  4. Replacement – Two compounds exchange ions to form two new compounds.
  5. – An acid and a base react to form salt and water.
  6. – A substance that speeds up a reaction without being consumed.
  7. – The starting substances in a chemical reaction.

15 Clues: – The loss of electrons during a reaction. • – The starting substances in a chemical reaction. • – An acid and a base react to form salt and water. • – A reaction that releases energy in the form of heat. • – A reaction that absorbs energy from its surroundings. • Replacement – One element replaces another in a compound. • ...

Energy Terms Crossword 2024-02-21

Energy Terms Crossword crossword puzzle
Across
  1. The measure of average kinetic energy within a substance
  2. The lowest limit of temperature
  3. Matter transitioning into a different state
  4. The results of a chemical reaction
  5. Minimum amount of energy needed to activate molecules or atoms in a chemical reaction
  6. The materials involved in a chemical reaction
  7. The transfer of heat through electromagnetic waves
  8. Mass is neither destroyed nor created in chemical reactions
  9. Materials that do not allow energy to flow through them
  10. Thermal energy transferred from one substance to another due to difference in temperature
  11. A bond between a metal and nonmetal
  12. Materials that allow energy to flow through them easily
Down
  1. A way to describe a chemical reaction
  2. Chemical reactions that release energy
  3. Chemical reactions that absorbs energy
  4. The transfer of heat through fluids
  5. A bond between two nonmetals
  6. The temperature at which a liquid changes to a solid
  7. The transfer of heat through direct contact of substances
  8. The temperature at which a solid turns into a liquid

20 Clues: A bond between two nonmetals • The lowest limit of temperature • The results of a chemical reaction • The transfer of heat through fluids • A bond between a metal and nonmetal • A way to describe a chemical reaction • Chemical reactions that release energy • Chemical reactions that absorbs energy • Matter transitioning into a different state • ...

Types of reactions by Sujay Yadav 2025-04-23

Types of reactions by Sujay Yadav crossword puzzle
Across
  1. – A reaction involving the transfer of electrons between two species.
  2. – The substances formed as a result of a chemical reaction.
  3. – The loss of electrons during a reaction.
  4. – A reaction that releases energy in the form of heat.
  5. – A hydrocarbon reacts with oxygen to produce carbon dioxide and water.
  6. – A solid that forms from a solution during a chemical reaction.
  7. Equation – A symbolic representation of a chemical reaction.
  8. – A reaction where two or more substances combine to form a single product.
Down
  1. – A single compound breaks down into two or more simpler substances.
  2. Replacement – One element replaces another in a compound.
  3. – A reaction that absorbs energy from its surroundings.
  4. Replacement – Two compounds exchange ions to form two new compounds.
  5. – An acid and a base react to form salt and water.
  6. – A substance that speeds up a reaction without being consumed.
  7. – The starting substances in a chemical reaction.

15 Clues: – The loss of electrons during a reaction. • – The starting substances in a chemical reaction. • – An acid and a base react to form salt and water. • – A reaction that releases energy in the form of heat. • – A reaction that absorbs energy from its surroundings. • Replacement – One element replaces another in a compound. • ...

cross word puzzle 2022-03-22

cross word puzzle crossword puzzle
Across
  1. " A solid that form's from solution during a chemical reaction."
  2. The cells in your body contain biological catalysts called ENZYMES."
  3. "is a amount of a substance in a given volume."
  4. "When on element replaces another in a compound, or when two elements in different compounds trade places."
  5. reaction- "is a reaction in which energy is absorbed
  6. "The study of matter and how matter changes"
  7. "A material used to decrease the rate of a reaction"
  8. "In contrast to a synthesis reaction, a process called DECOMPOSITION breaks down compounds into simpler products."
  9. is a material that releases energy when it burns."
  10. The substance you have at the beginning"
  11. "when two or more elements or compounds combine to make more complex substances the process is called synthesis."
  12. equation-"is a short, easy way to show a chemical reaction, using symbols instead of words."
  13. reaction-"A reaction that releases energy in the form of heat"
  14. " a rapid reaction between oxygen and a substance called a fuel.
Down
  1. "is a number placed in font of chemical formula in an equation."
  2. property- a Characteristic of substance that describes its ability to change into other substances.
  3. "is anything that has mass and takes up space."
  4. system- " matter is not allowed to enter or leave."
  5. of mass- "during a chemical reaction, matter is not created or destroyed
  6. a material that increases the rate of reaction by lowering the activation energy."
  7. reaction- A change in matter that produces one or more new substances.
  8. "When the reaction is complete, you have new substances"
  9. system- "matter can enter from or escape to the surrounding."
  10. change- " is any change that alters the form or appearance of a substance but that does not make the substance into another substance.
  11. property- A characteristic of a substance that can be observed without changing the substance into another substance.
  12. energy- "is a minimum amount of energy needed to start a chemical reaction."

26 Clues: The substance you have at the beginning" • "The study of matter and how matter changes" • "is anything that has mass and takes up space." • "is a amount of a substance in a given volume." • is a material that releases energy when it burns." • system- " matter is not allowed to enter or leave." • reaction- "is a reaction in which energy is absorbed • ...

Chemical and Physical reaction worksheet 2022-03-18

Chemical and Physical reaction worksheet crossword puzzle
Across
  1. " A solid that form's from solution during a chemical reaction."
  2. The cells in your body contain biological catalysts called ENZYMES."
  3. "is a amount of a substance in a given volume."
  4. "When on element replaces another in a compound, or when two elements in different compounds trade places."
  5. reaction- "is a reaction in which energy is absorbed
  6. "The study of matter and how matter changes"
  7. "A material used to decrease the rate of a reaction"
  8. "In contrast to a synthesis reaction, a process called DECOMPOSITION breaks down compounds into simpler products."
  9. is a material that releases energy when it burns."
  10. The substance you have at the beginning"
  11. "when two or more elements or compounds combine to make more complex substances the process is called synthesis."
  12. equation-"is a short, easy way to show a chemical reaction, using symbols instead of words."
  13. reaction-"A reaction that releases energy in the form of heat"
  14. " a rapid reaction between oxygen and a substance called a fuel.
Down
  1. "is a number placed in font of chemical formula in an equation."
  2. property- a Characteristic of substance that describes its ability to change into other substances.
  3. "is anything that has mass and takes up space."
  4. system- " matter is not allowed to enter or leave."
  5. of mass- "during a chemical reaction, matter is not created or destroyed
  6. a material that increases the rate of reaction by lowering the activation energy."
  7. reaction- A change in matter that produces one or more new substances.
  8. "When the reaction is complete, you have new substances"
  9. system- "matter can enter from or escape to the surrounding."
  10. change- " is any change that alters the form or appearance of a substance but that does not make the substance into another substance.
  11. property- A characteristic of a substance that can be observed without changing the substance into another substance.
  12. energy- "is a minimum amount of energy needed to start a chemical reaction."

26 Clues: The substance you have at the beginning" • "The study of matter and how matter changes" • "is anything that has mass and takes up space." • "is a amount of a substance in a given volume." • is a material that releases energy when it burns." • system- " matter is not allowed to enter or leave." • reaction- "is a reaction in which energy is absorbed • ...

chapter 7: Chemical Reactions review 2021-05-08

chapter 7: Chemical Reactions review crossword puzzle
Across
  1. reaction with their environment
  2. in a chemical reaction, the total mass of the reactants is the same as the total
  3. a scale that represents the acidity or basicity of a solution; pH < 7 indicates an acid; pH > 7 indicates a base; pH 7 indicates a neutral solution
  4. indicator a solution that is used to determine the pH(amount of acid or base) of a solution
  5. reaction a chemical reaction that absorbs energy in the form of heat
  6. neither an acid nor a base; for example,water
Down
  1. the gradual destruction of materials by a chemical reaction with their environment
  2. reaction a chemical reaction that releases energy in the form of heat or light
  3. the original substances present in a chemical reaction
  4. a reaction between an acid and a base. A salt and water (a neutral liquid) are the products of this type of reaction
  5. chemicals that react with a base to produce a salt and water; edible acids taste sour
  6. a paper containing an indicator that turns red when exposed to an acid and blue when exposed to a base
  7. bases that dissolve in water
  8. chemical substances that result from a chemical reaction mass of the products
  9. a bond that forms between the atoms in a molecule

15 Clues: bases that dissolve in water • reaction with their environment • neither an acid nor a base; for example,water • a bond that forms between the atoms in a molecule • the original substances present in a chemical reaction • reaction a chemical reaction that absorbs energy in the form of heat • ...

Changes in matter 2025-05-14

Changes in matter crossword puzzle
Across
  1. something taking part in an experiment
  2. a combination of multiple substances
  3. multiple elements combining chemically
  4. smallest unit of chemical bond
  5. stuff, takes up space
  6. something that speeds up a chemical reaction
  7. change something changes physically in an experiment
  8. measuring kinetic energy
  9. change chemical substances transform into different substances
Down
  1. a reaction releasing chemicals into surroundings
  2. extremely small unit of measurement
  3. reactants absorb heat energy
  4. substances formed due to reaction between substances
  5. work, heat generated
  6. property characteristics of a substance
  7. to measure the amount of matter in something
  8. molecule adhering to another
  9. an action performed

18 Clues: an action performed • work, heat generated • stuff, takes up space • measuring kinetic energy • reactants absorb heat energy • molecule adhering to another • smallest unit of chemical bond • extremely small unit of measurement • a combination of multiple substances • something taking part in an experiment • multiple elements combining chemically • ...

Elizabeth rose torres 2017-02-27

Elizabeth rose torres crossword puzzle
Across
  1. compound something having two parts.
  2. like water; watery.
  3. to give up, as to superior power or authority
  4. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  5. a quantity obtained by multiplying quantities together, or from an analogous algebraic operation.
  6. the removal of hair roots or small blemishes on the skin by the application of heat using an electric current.
  7. ion , is a charged chemical speciescomposed of two or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit
  8. cause (a substance) to be deposited in solid form from a solution.
  9. a compound or substance that has been purified or prepared, especially artificially.
  10. a thing that is made smaller or less in size or amount, in particular.
  11. the process or result of oxidizing or being oxidized.
  12. rapid chemical combination of a substance with oxygen, involving the production of heat and light.
Down
  1. replacement reaction, is a type of chemical reaction where an element reacts with a compound
  2. consisting of two atoms.
  3. the production of chemical compounds by reaction from simpler materials.
  4. the state or process of rotting; decay.
  5. a quantity obtained by multiplying quantities together, or from an analogous algebraic operation.
  6. a chemical substance that is present at the start of a chemical
  7. replacement reaction or metathesis, is a type of chemical reaction where two compounds react,

19 Clues: like water; watery. • consisting of two atoms. • compound something having two parts. • the state or process of rotting; decay. • to give up, as to superior power or authority • the process or result of oxidizing or being oxidized. • a chemical substance that is present at the start of a chemical • cause (a substance) to be deposited in solid form from a solution. • ...

CHAPTER 6 VOCABULARY 2013-11-13

CHAPTER 6 VOCABULARY crossword puzzle
Across
  1. a reaction in which a sing compound breaks down
  2. any chemical change when species is oxidized and another species is reduced
  3. a substance that forms in a chemical reaction
  4. a chemical reaction in which heat is released to the surroundings
  5. organic group
  6. the energy released when a chemical compound reacts to produce new compounds
  7. a chemical reaction that requires heat
Down
  1. representation of a chemical reaction
  2. a reaction in which 1 element takes another elements place
  3. 2 compunds
  4. the oxidation reaction or an organic compound
  5. the proses which an electric current is used
  6. a substance or molecule that participates in a chemical reaction

13 Clues: 2 compunds • organic group • representation of a chemical reaction • a chemical reaction that requires heat • the proses which an electric current is used • the oxidation reaction or an organic compound • a substance that forms in a chemical reaction • a reaction in which a sing compound breaks down • a reaction in which 1 element takes another elements place • ...

Chapter 13 2017-02-26

Chapter 13 crossword puzzle
Across
  1. a substance that donates hydrogen ions
  2. a measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases
  3. any substance that increases the rate of a chemical reaction without itself being consumed by the reaction
  4. matter is neither created nor destroyed during a chemical reaction; atoms are merely rearranged, without any apparent loss or gain of mass, to form new molecules
  5. the reacting substances in a chemical reaction
  6. a chemical reaction in which there is a net release of energy
  7. a polyatomic ion made by adding a proton(hydrogen ion)to a water molecule
  8. an ionic compound commonly formed from the reaction between an acid and a base
Down
  1. the amount of energy required to pull two bonded atoms apart, which is the same as the amount of energy released when the two atoms are brought together
  2. the minimum energy required in order for a chemical reaction to proceed
  3. a substance that accepts hydrogen ions
  4. the new materials formed in a chemical reaction
  5. a representation of a chemical reaction in which reactants are written to the left of an arrow that points toward the products on the right
  6. a polyatomic ion made by removing a proton(hydrogen ion) to a water molecule
  7. a chemical reaction in which there is a net absorption of energy

15 Clues: a substance that donates hydrogen ions • a substance that accepts hydrogen ions • the reacting substances in a chemical reaction • the new materials formed in a chemical reaction • a chemical reaction in which there is a net release of energy • a chemical reaction in which there is a net absorption of energy • ...

Chapter 7 Vocabulary 2024-01-21

Chapter 7 Vocabulary crossword puzzle
Across
  1. the number in front of the formula
  2. reaction reactions that involve the transfer of electrons from one species to another
  3. reaction redox reaction
  4. reaction any chemical reaction that absorbs heat from its environment
  5. a substance that takes part in and undergoes change during a reaction.
  6. 6.02214076 × 1023 of some chemical unit
  7. energy a process that involves the rearrangement of the molecular or ionic structure of a substance
  8. reaction a chemical reaction that involves the release of energy in the form of heat or light
  9. reaction occurs when two or more reactants combine to form a single product
Down
  1. reaction a reaction in which one element is substituted for another element in a compound
  2. reaction generally occur between substances in an aqueous solution
  3. formed from a chemical reaction.
  4. equation a symbolic representation of the molecules that take part in the chemical reactant
  5. mass the mass in grams of one mole of the compound
  6. reaction occurs when one reactant breaks down into two or more products

15 Clues: reaction redox reaction • formed from a chemical reaction. • the number in front of the formula • 6.02214076 × 1023 of some chemical unit • mass the mass in grams of one mole of the compound • reaction generally occur between substances in an aqueous solution • reaction any chemical reaction that absorbs heat from its environment • ...

Chapter 7 2023-01-03

Chapter 7 crossword puzzle
Across
  1. reaction - a chemical reaction in which a compound breaks down into two or more simpler substances
  2. equation - a representation of a chemical reaction in which the reactants and products are expressed as formulas
  3. reaction - a chemical reaction that releases energy to its surroundings
  4. mass - the mass of one mole of a substance
  5. reaction - a chemical reaction that absorbs energy from its surroundings
  6. - substances that undergo change in a chemical reaction
  7. - numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
Down
  1. reaction - a chemical reaction in which one element takes the place of another element in a compound
  2. reaction - a chemical reaction in which two or more substances react to form a single substance
  3. reaction - a chemical reaction in which two compounds exchange positive ions and form new compounds
  4. - an amount of a substance that contains approximately 6.02 x 1023 particles of the substance
  5. - new substances formed as a result of a chemical reaction
  6. energy - the energy stored in chemical bonds

13 Clues: mass - the mass of one mole of a substance • energy - the energy stored in chemical bonds • - substances that undergo change in a chemical reaction • - new substances formed as a result of a chemical reaction • reaction - a chemical reaction that releases energy to its surroundings • reaction - a chemical reaction that absorbs energy from its surroundings • ...

Unit 4 Cellular Energy Vocab 2025-10-14

Unit 4 Cellular Energy Vocab crossword puzzle
Across
  1. reaction- Reaction that converts light energy into chemical energy.
  2. reaction- Reaction that takes place within the stroma.
  3. The natural compound present in green plants that gives them color.
  4. Respiration- The process of cellular respiration takes place in the presence of oxygen gas to produce energy from food.
  5. Respiration- Type of respiration through which cells can break down sugars to generate energy in the absence of oxygen.
  6. A substance produced during a chemical reaction.
  7. Energy- Energy from the sun that reaches earth as visible light.
  8. Monosaccharide sugar that is produced in photosynthesis and used during cellular respiration for energy production.
Down
  1. Flattened sacs inside a chloroplast bounded by pigment membranes on which the light reactions of photosynthesis takes place.
  2. The primary molecule in which energy is stored in chemical bonds for future use n cellular processes.
  3. The chemical process of converting light energy into chemical energy
  4. Reaction- The process by which one or more substances change to produce one or more different substances.
  5. The anaerobic process of energy production that results in the formation of pyruvic acid from the breakdown of glucose
  6. Cycle- a chemical reaction occuring in the mitochondria, through which all living cells produce energy in aerobic respiration.
  7. Energy- Energy stored in the particles that make up food, fuel and other matter.
  8. Respiration- The chemical process of converting chemical energy (ATP) into an alternative chemical energy (ATP)
  9. A substance that takes part in and undergoes change during a reaction.

17 Clues: A substance produced during a chemical reaction. • reaction- Reaction that takes place within the stroma. • Energy- Energy from the sun that reaches earth as visible light. • The natural compound present in green plants that gives them color. • The chemical process of converting light energy into chemical energy • ...

Chapter 7 Vocabulary 2024-01-21

Chapter 7 Vocabulary crossword puzzle
Across
  1. the number in front of the formula
  2. reaction reactions that involve the transfer of electrons from one species to another
  3. reaction redox reaction
  4. reaction any chemical reaction that absorbs heat from its environment
  5. a substance that takes part in and undergoes change during a reaction.
  6. 6.02214076 × 1023 of some chemical unit
  7. energy a process that involves the rearrangement of the molecular or ionic structure of a substance
  8. reaction a chemical reaction that involves the release of energy in the form of heat or light
  9. reaction occurs when two or more reactants combine to form a single product
Down
  1. reaction a reaction in which one element is substituted for another element in a compound
  2. reaction generally occur between substances in an aqueous solution
  3. formed from a chemical reaction.
  4. equation a symbolic representation of the molecules that take part in the chemical reactant
  5. mass the mass in grams of one mole of the compound
  6. reaction occurs when one reactant breaks down into two or more products

15 Clues: reaction redox reaction • formed from a chemical reaction. • the number in front of the formula • 6.02214076 × 1023 of some chemical unit • mass the mass in grams of one mole of the compound • reaction generally occur between substances in an aqueous solution • reaction any chemical reaction that absorbs heat from its environment • ...

Ch 7 vocab 2023-01-03

Ch 7 vocab crossword puzzle
Across
  1. reaction a chemical reaction in which a compound breaks down into two or more simpler substances
  2. equation a representation of a chemical reaction in which the reactants and products are expressed as formulas
  3. reaction a chemical reaction that releases energy to its surroundings
  4. mass the mass of one mole of a substance
  5. reaction a chemical reaction that absorbs energy from its surroundings
  6. substances that undergo change in a chemical reaction
  7. numbers that appear before a formula in a chemical equation to show the relative proportions of each reactant and product
Down
  1. reaction a chemical reaction in which one element takes the place of another element in a compound
  2. reaction a chemical reaction in which two or more substances react to form a single substance
  3. reaction a chemical reaction in which two compounds exchange positive ions and form new compounds
  4. an amount of a substance that contains approximately 6.02 x 1023 particles of the substance
  5. new substances formed as a result of a chemical reaction
  6. energy the energy stored in chemical bonds

13 Clues: mass the mass of one mole of a substance • energy the energy stored in chemical bonds • substances that undergo change in a chemical reaction • new substances formed as a result of a chemical reaction • reaction a chemical reaction that releases energy to its surroundings • reaction a chemical reaction that absorbs energy from its surroundings • ...

Unit 4 Vocab Test 2025-04-08

Unit 4 Vocab Test crossword puzzle
Across
  1. a chemical reaction in which energy is released to the surroundings
  2. atoms with the same number of protons but different numbers of neutrons
  3. process in which atoms are rearranged to produce new substances
  4. an expression that uses symbols to show the relationship between the starting substances and the substances that are produced by a chemical reaction
  5. substances that participate in a chemical reaction
  6. a process by which nuclei of small atoms combine to form a new, more massive nucleus
  7. substances formed in a reaction
Down
  1. nuclear reaction in which a large unstable nucleus breaks into two smaller nuclei
  2. nuclear reaction in which an unstable nucleus can give off energy and, sometimes, particles
  3. a chemical compound that is composed of carbon, hydrogen, and possibly other elements
  4. neutral organic compound containing carbon, hydrogen, and oxygen
  5. law that states that matter is neither created nor destroyed
  6. organic compound that contains only carbon atoms and hydrogen atoms
  7. a chemical reaction that requires an input of energy
  8. law that states energy cannot be created or destroyed
  9. a way to represent a given substance using chemical symbols and numbers
  10. molecules composed of the same repeating small groups of atoms joking in long chains
  11. a change that affects the nucleus of an atom
  12. organic compound that has acidic properties

19 Clues: substances formed in a reaction • organic compound that has acidic properties • a change that affects the nucleus of an atom • substances that participate in a chemical reaction • a chemical reaction that requires an input of energy • law that states energy cannot be created or destroyed • law that states that matter is neither created nor destroyed • ...

Types of reactions by Sujay yadav 2025-04-23

Types of reactions by Sujay yadav crossword puzzle
Across
  1. – A reaction involving the transfer of electrons between two species.
  2. – The substances formed as a result of a chemical reaction.
  3. – The loss of electrons during a reaction.
  4. – A reaction that releases energy in the form of heat.
  5. – A hydrocarbon reacts with oxygen to produce carbon dioxide and water.
  6. – A solid that forms from a solution during a chemical reaction.
  7. Equation – A symbolic representation of a chemical reaction.
  8. – A reaction where two or more substances combine to form a single product.
Down
  1. – A single compound breaks down into two or more simpler substances.
  2. Replacement – One element replaces another in a compound.
  3. – A reaction that absorbs energy from its surroundings.
  4. Replacement – Two compounds exchange ions to form two new compounds.
  5. – An acid and a base react to form salt and water.
  6. – A substance that speeds up a reaction without being consumed.
  7. – The starting substances in a chemical reaction.

15 Clues: – The loss of electrons during a reaction. • – The starting substances in a chemical reaction. • – An acid and a base react to form salt and water. • – A reaction that releases energy in the form of heat. • – A reaction that absorbs energy from its surroundings. • Replacement – One element replaces another in a compound. • ...

Types of reactions by Sujay Yadav 2025-04-23

Types of reactions by Sujay Yadav crossword puzzle
Across
  1. – A single compound breaks down into two or more simpler substances.
  2. – A hydrocarbon reacts with oxygen to produce carbon dioxide and water.
  3. – An acid and a base react to form salt and water.
  4. – The starting substances in a chemical reaction.
  5. – A reaction involving the transfer of electrons between two species.
  6. – A reaction that releases energy in the form of heat.
  7. – A reaction that absorbs energy from its surroundings.
  8. Replacement – One element replaces another in a compound.
  9. – A substance that speeds up a reaction without being consumed.
Down
  1. – The substances formed as a result of a chemical reaction.
  2. Replacement – Two compounds exchange ions to form two new compounds.
  3. – The loss of electrons during a reaction.
  4. – A solid that forms from a solution during a chemical reaction.
  5. – A reaction where two or more substances combine to form a single product.
  6. Equation – A symbolic representation of a chemical reaction.

15 Clues: – The loss of electrons during a reaction. • – The starting substances in a chemical reaction. • – An acid and a base react to form salt and water. • – A reaction that releases energy in the form of heat. • – A reaction that absorbs energy from its surroundings. • Replacement – One element replaces another in a compound. • ...

Atoms 2024-11-18

Atoms crossword puzzle
Across
  1. Atoms of the same element that have different numbers of neutrons.
  2. Substances formed as a result of a chemical reaction.
  3. A chemical reaction that releases energy in the form of heat or light.
  4. A vertical column in the periodic table with elements that have similar properties.
  5. A negatively charged subatomic particle that orbits the nucleus.
  6. Number The number of protons in the nucleus of an atom, determining the element.
  7. Reaction A process where substances change to form new substances.
  8. The electrons in the outermost shell of an atom, which determine bonding.
Down
  1. A chemical bond formed by sharing electrons between atoms.
  2. A chemical bond formed by the transfer of electrons between atoms.
  3. Number The total number of protons and neutrons in an atom's nucleus.
  4. A chemical reaction that absorbs energy during the process.
  5. A positively charged subatomic particle found in the nucleus of an atom.
  6. A subatomic particle with no charge, located in the nucleus of an atom.
  7. Table A chart that organizes elements based on atomic number and properties.
  8. The smallest unit of matter that retains the properties of an element.
  9. The dense center of an atom containing protons and neutrons.
  10. Substances present at the beginning of a chemical reaction.
  11. of Conservation of Matter States that matter cannot be created or destroyed in a chemical reaction.
  12. A horizontal row in the periodic table where elements have the same number of electron shells.

20 Clues: Substances formed as a result of a chemical reaction. • A chemical bond formed by sharing electrons between atoms. • A chemical reaction that absorbs energy during the process. • Substances present at the beginning of a chemical reaction. • The dense center of an atom containing protons and neutrons. • ...

chemistry unit B 2014-11-06

chemistry unit B crossword puzzle
Across
  1. system - one experiment in which all reactants and all products of a chemical reaction are accounted for
  2. compound pure substance formed when at least when one metal and non-metal combine
  3. positive charge
  4. shiny malleable ductile element that conduct electricity
  5. chemical reactions that occurs when oxygen reacts with a substance
  6. element has both metallic and non metal properties
  7. metals group 1 element in the periodic table
  8. slow chemical change that occurs when oxygen in the air reacts with a metal
  9. system experiment in which products can escape a chemical reaction
  10. -ability to pound into sheets
  11. workplace hazardous materials information system
  12. negative charge
  13. respiration chemical reaction that takes place in a cell
Down
  1. -horizontal row of elements in the periodic table
  2. gases -group 18 of the periodic table
  3. substance that helps a reaction to proceed more quickly
  4. neutral particle in the nucleus of an atom
  5. vertical column of elements in the periodic table
  6. ions groups of atoms acting as one
  7. compounds pure substance formed when non metals combine
  8. metal dull brittle element that does not conduct electricity
  9. anything that has mass and occupies space
  10. catalyst involved in chemical reaction in living things
  11. reaction when two or more substances react to form a new substance
  12. number the sum of the number of protons and neutrons in an atom

25 Clues: positive charge • negative charge • -ability to pound into sheets • ions groups of atoms acting as one • gases -group 18 of the periodic table • neutral particle in the nucleus of an atom • anything that has mass and occupies space • metals group 1 element in the periodic table • workplace hazardous materials information system • ...

Chemistry 2022-03-18

Chemistry crossword puzzle
Across
  1. " A solid that form's from solution during a chemical reaction."
  2. The cells in your body contain biological catalysts called ENZYMES."
  3. "is a amount of a substance in a given volume."
  4. "When on element replaces another in a compound, or when two elements in different compounds trade places."
  5. reaction- "is a reaction in which energy is absorbed
  6. "The study of matter and how matter changes"
  7. "A material used to decrease the rate of a reaction"
  8. "In contrast to a synthesis reaction, a process called DECOMPOSITION breaks down compounds into simpler products."
  9. is a material that releases energy when it burns."
  10. The substance you have at the beginning"
  11. "when two or more elements or compounds combine to make more complex substances the process is called synthesis."
  12. equation-"is a short, easy way to show a chemical reaction, using symbols instead of words."
  13. reaction-"A reaction that releases energy in the form of heat"
  14. " a rapid reaction between oxygen and a substance called a fuel.
Down
  1. "is a number placed in font of chemical formula in an equation."
  2. property- a Characteristic of substance that describes its ability to change into other substances.
  3. "is anything that has mass and takes up space."
  4. system- " matter is not allowed to enter or leave."
  5. of mass- "during a chemical reaction, matter is not created or destroyed
  6. a material that increases the rate of reaction by lowering the activation energy."
  7. reaction- A change in matter that produces one or more new substances.
  8. "When the reaction is complete, you have new substances"
  9. system- "matter can enter from or escape to the surrounding."
  10. change- " is any change that alters the form or appearance of a substance but that does not make the substance into another substance.
  11. property- A characteristic of a substance that can be observed without changing the substance into another substance.
  12. energy- "is a minimum amount of energy needed to start a chemical reaction."

26 Clues: The substance you have at the beginning" • "The study of matter and how matter changes" • "is anything that has mass and takes up space." • "is a amount of a substance in a given volume." • is a material that releases energy when it burns." • system- " matter is not allowed to enter or leave." • reaction- "is a reaction in which energy is absorbed • ...

Types of Chemical Reactions By Neel Jaswanth 10L 42070 2025-04-27

Types of Chemical Reactions By Neel Jaswanth 10L 42070 crossword puzzle
Across
  1. A reaction in which one reactant gets oxidised while other gets reduced is called a _______________.
  2. A substance in a redox chemical reaction that gains or accepts or receives an electron from a reducing agent is called an _________________.
  3. A reaction in which a single substance decomposes to give two or more substances is called _________________________.
  4. A chemical reaction in which an element displaces another element from its solution is called ______________________________.
  5. A reaction in which a single product is formed from two or more reactants is called __________________________.
  6. A chemical reaction in which two different atoms or group of atoms are mutually exchanged is called a ___________________________.
  7. When a metal is attacked by substances around it such as moisture, acids etc. It is called ________________.
  8. An insoluble substance formed along with the formation of a product in a chemical reaction is known as a ___________________.
  9. Reactions in which energy is absorbed are called ________________________.
  10. Any reaction that produces a precipitate is known as a __________________.
  11. What are added to foods containing fats and oils? _______________.
  12. Decomposition reaction that is carried out by electric current is called ___________________________.
Down
  1. A substance that speeds up a chemical reaction is called ________________.
  2. Decomposition reaction that is carried out by light is called ______________________________.
  3. Reactions in which heat is released along with the formation of products are called ___________________________.
  4. The gain of oxygen or loss of hydrogen is known as ___________________.
  5. Decomposition reaction that is carried out by heating is called ________________________________.
  6. When fats and oils are oxidised they become rancid and their smell and taste change. This is called _____________.
  7. The loss of oxygen or gain of hydrogen is known as ________________.
  8. A series of metals based on their reactivity from highest to lowest is called ____________________.

20 Clues: What are added to foods containing fats and oils? _______________. • The loss of oxygen or gain of hydrogen is known as ________________. • The gain of oxygen or loss of hydrogen is known as ___________________. • A substance that speeds up a chemical reaction is called ________________. • ...

Unit B - Matter and Chemical Change Crossword 2017-11-10

Unit B - Matter and Chemical Change Crossword crossword puzzle
Across
  1. A change in matter that is non-reversible
  2. Anything on the periodic table, made of one atom
  3. A change in matter that is reversible
  4. Absorbs heat energy
  5. Occurs when two or more materials react and create new materials
  6. Releases heat energy
  7. Total mass of these products is always the same as the total mass of the reactants
  8. Cloudy mixture that can't be separated
  9. Is a slow chemical change
  10. A substance that reacts with a substance
  11. The speed of a chemical reaction
  12. An experiment in which one or more products of a chemical reaction can escape
Down
  1. Mixture of two or more pure substances that looks like one substance
  2. A new substance created with a chemical reaction
  3. Anything that has mass and occupies space
  4. Is a chemical reaction that takes place in the cells in your body
  5. An atom or a group of atoms that had been electrically charged
  6. Organic catalysts
  7. Chemical combination of two or more elements in a specific ratio
  8. When non-metals combine
  9. Workplace Hazardous Material Information System (abbreviation)
  10. Are substances that help a reaction proceed faster
  11. Is a chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  12. metal + non-metal
  13. Cloudy mixture that can be separated

25 Clues: Organic catalysts • metal + non-metal • Absorbs heat energy • Releases heat energy • When non-metals combine • Is a slow chemical change • The speed of a chemical reaction • Cloudy mixture that can be separated • A change in matter that is reversible • Cloudy mixture that can't be separated • A substance that reacts with a substance • Anything that has mass and occupies space • ...

Unit B - Matter and Chemical Change Crossword 2017-11-10

Unit B - Matter and Chemical Change Crossword crossword puzzle
Across
  1. A substance that reacts with a substance
  2. Mixture of two or more pure substances that looks like one substance
  3. A new substance created with a chemical reaction
  4. A change in matter that is reversible
  5. Releases heat energy
  6. A change in matter that is non-reversible
  7. An experiment in which one or more products of a chemical reaction can escape
  8. Anything on the periodic table, made of one atom
  9. Organic catalysts
  10. The speed of a chemical reaction
  11. Total mass of these products is always the same as the total mass of the reactants
  12. Workplace Hazardous Material Information System (abbreviation)
  13. When non-metals combine
  14. Is a slow chemical change
  15. Chemical combination of two or more elements in a specific ratio
Down
  1. Absorbs heat energy
  2. Cloudy mixture that can be separated
  3. Is a chemical reaction that takes place in the cells in your body
  4. Occurs when two or more materials react and create new materials
  5. Anything that has mass and occupies space
  6. Are substances that help a reaction proceed faster
  7. Is a chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  8. An atom or a group of atoms that had been electrically charged
  9. metal + non-metal
  10. Cloudy mixture that can't be separated

25 Clues: Organic catalysts • metal + non-metal • Absorbs heat energy • Releases heat energy • When non-metals combine • Is a slow chemical change • The speed of a chemical reaction • Cloudy mixture that can be separated • A change in matter that is reversible • Cloudy mixture that can't be separated • A substance that reacts with a substance • Anything that has mass and occupies space • ...

Unit B - Matter and Chemical Change Crossword 2017-11-09

Unit B - Matter and Chemical Change Crossword crossword puzzle
Across
  1. Is a slow chemical change
  2. A change in matter that is non-reversible
  3. Workplace Hazardous Material Information System (abbreviation)
  4. Anything that has mass and occupies space
  5. Total mass of these products is always the same as the total mass of the reactants
  6. When non-metals combine
  7. Anything on the periodic table, made of one atom
  8. A change in matter that is reversible
  9. The speed of a chemical reaction
  10. Mixture of two or more pure substances that looks like one substance
  11. metal + non-metal
  12. Organic catalysts
  13. Is a chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
Down
  1. Releases heat energy
  2. An experiment in which one or more products of a chemical reaction can escape
  3. A substance that reacts with a substance
  4. An atom or a group of atoms that had been electrically charged
  5. Is a chemical reaction that takes place in the cells in your body
  6. Absorbs heat energy
  7. Occurs when two or more materials react and create new materials
  8. Are substances that help a reaction proceed faster
  9. Cloudy mixture that can be separated
  10. A new substance created with a chemical reaction
  11. Chemical combination of two or more elements in a specific ratio
  12. Cloudy mixture that can't be separated

25 Clues: metal + non-metal • Organic catalysts • Absorbs heat energy • Releases heat energy • When non-metals combine • Is a slow chemical change • The speed of a chemical reaction • Cloudy mixture that can be separated • A change in matter that is reversible • Cloudy mixture that can't be separated • A substance that reacts with a substance • A change in matter that is non-reversible • ...

Chemistry Crossword Renze Torres 9B 2018-12-11

Chemistry Crossword Renze Torres 9B crossword puzzle
Across
  1. An experiment in which one or more products of a chemical reactions can escape
  2. A temperature where the solid melts
  3. This change is reversible
  4. This change is non reversible
  5. The process of burning
  6. A chemical reaction that takes place in cells
  7. Pure substance formed when at least one metal and non metal combine
  8. chemical reaction that absorbs energy
  9. A substance produced by a living organism that acts as a catalyst
  10. A system easy to see warning symbols on hazardous materials
  11. chemical reaction that releases energy
  12. A substance that helps a chemical reaction to proceed more quickly
Down
  1. Substance made up of one atom
  2. A substance that changes during a reaction
  3. law of conservation
  4. an organic catalyst
  5. Pure substance when formed when nonmetals combine
  6. A table in which elements are organized by their physical and chemical properties
  7. Anything that has mass and occupies space
  8. An experiment in which all reactants and all products of a chemical reaction are accounted for
  9. Number of protons in the nucleus of one atom of an element
  10. A temperature at where the liquid turns into vapour
  11. An atom that has become electrically charged because it has lost or gained electrons
  12. Of an element calculated from the total number of protons, neutrons, and electrons of that atom
  13. The process of corroding metal, stone, or other materials

25 Clues: law of conservation • an organic catalyst • The process of burning • This change is reversible • Substance made up of one atom • This change is non reversible • A temperature where the solid melts • chemical reaction that absorbs energy • chemical reaction that releases energy • Anything that has mass and occupies space • A substance that changes during a reaction • ...

Chemistry Crossword 2017-11-07

Chemistry Crossword crossword puzzle
Across
  1. slow chemical change that occurs when oxygen in the air reacts with a metal
  2. number of protons in the nucleus of one atom of an element
  3. ability of a substance to conduct electricity or heat
  4. combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  5. a reaction that takes place when two or more substances react to form new substances
  6. chemical reaction that releases eenergy
  7. description of how a substance interacts with other substances, such as acids;chemical properties are observable only when a chemical change occurs
  8. principle that matter is not created or destroyed in a chemical reaction; the mass of the products always equals the mass of the reactants
  9. metals group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali metals
  10. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  11. an experiment in which all reactants and all products of a chemical reaction are accounted for
Down
  1. substance that helps a chemical reaction to proceed more quickly
  2. change that results when two or more substances react to create a different substance or substances; the new substances have completely different properties from the original ones
  3. mass of one atom of an element calculated from the total number of protons,neutrons, and electrons of that atom; measured in atomic mass units (amu)
  4. catalyst involved in chemical reactions in living things
  5. chemical reaction that absorbs energy
  6. vertical column of elements in the periodic table; elements in a family all have similar chemical properties; also called a family
  7. invisible negatively charged particle that orbits the nucleus of an atom
  8. measure of atomic mass; 1 amu is equal to 1/12th the mass of a carbon 12 atom
  9. compound that dissolves in water to form a solution with a pH lower than 7
  10. (CO(g))colourless, odourless gas;produced by incomplete combustion of chemicals containing carbon (e.g. hydrocarbons); major source: motor vehicles
  11. chemical combination of two or more elements in a specific ratio
  12. orbit of electrons around the nucleus of an atom
  13. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
  14. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
  15. the smallest part of an element that is representative of that element; a neutral particle made up of a nucleus containing protons and neutrons, and in which the number of electrons equals the number of protons

26 Clues: chemical reaction that absorbs energy • chemical reaction that releases eenergy • orbit of electrons around the nucleus of an atom • ability of a substance to conduct electricity or heat • catalyst involved in chemical reactions in living things • number of protons in the nucleus of one atom of an element • ...

The Chemical Context of Life 2022-09-22

The Chemical Context of Life crossword puzzle
Across
  1. negative electricity
  2. breaks down formula
  3. positive electrons
  4. atoms attract shared electrons
  5. electrons share atoms
  6. an substance that has mass
  7. species of atoms
  8. positively charged ion
  9. attraction between atoms, ions, or molecules
  10. natural gas
  11. two or more elements
  12. outer shell
Down
  1. undergoes change during a reaction
  2. a group of atoms bonded together
  3. sharing electrons between two atoms
  4. same element different neutrons
  5. species formed by chemical reactions
  6. basic unit of a chemical element
  7. energy stored in chemical bonds
  8. atom or molecule
  9. negatively-charged ion
  10. atoms come close together
  11. released after chemical reaction
  12. reversible chemical reaction
  13. attraction between opposed ions

25 Clues: natural gas • outer shell • atom or molecule • species of atoms • positive electrons • breaks down formula • negative electricity • two or more elements • electrons share atoms • negatively-charged ion • positively charged ion • atoms come close together • an substance that has mass • reversible chemical reaction • atoms attract shared electrons • same element different neutrons • ...

Chapter 7 Vocabulary 2024-01-21

Chapter 7 Vocabulary crossword puzzle
Across
  1. the number in front of the formula
  2. reaction reactions that involve the transfer of electrons from one species to another
  3. reaction redox reaction
  4. reaction any chemical reaction that absorbs heat from its environment
  5. a substance that takes part in and undergoes change during a reaction.
  6. 6.02214076 × 1023 of some chemical unit
  7. energy a process that involves the rearrangement of the molecular or ionic structure of a substance
  8. reaction a chemical reaction that involves the release of energy in the form of heat or light
  9. reaction occurs when two or more reactants combine to form a single product
Down
  1. reaction a reaction in which one element is substituted for another element in a compound
  2. reaction generally occur between substances in an aqueous solution
  3. formed from a chemical reaction.
  4. equation a symbolic representation of the molecules that take part in the chemical reactant
  5. mass the mass in grams of one mole of the compound
  6. reaction occurs when one reactant breaks down into two or more products

15 Clues: reaction redox reaction • formed from a chemical reaction. • the number in front of the formula • 6.02214076 × 1023 of some chemical unit • mass the mass in grams of one mole of the compound • reaction generally occur between substances in an aqueous solution • reaction any chemical reaction that absorbs heat from its environment • ...

Chemical reaction review 2023-03-28

Chemical reaction review crossword puzzle
Across
  1. The law of conservation of mass states the total amount of matter remains the same, regardless of any chemical or physical change.
  2. reaction when 1 element replaces another element in a compound
  3. reaction in which energy is released in the form of light or heat
  4. the act of a compound breaking down into simpler products
  5. mixture with non-uniform composition. Composition varies from one region to another with at least two phases that remain separate from each other.
  6. mixture which appears uniform throughout
Down
  1. a substance formed as a result of a chemical reaction
  2. reaction in which the reactants absorb heat energy from the surroundings
  3. refers to a material which is made by humans; involves a chemical reaction between two or more compounds
  4. type of change that occurs when one chemical substance is transformed into one or more different substances.
  5. a system which can exchange both energy and matter with its surroundings
  6. type of change that alters the form or appearance of a substance without changing it into different substances.
  7. a heterogenous mixture, containing small, undissolved particles that do not separate or settle out if mixture is undisturbed. Ex. milk and paint
  8. a substance that enters into a chemical reaction
  9. a mixture with particles that can be seen and easily separated by settling or filtration.

15 Clues: mixture which appears uniform throughout • a substance that enters into a chemical reaction • a substance formed as a result of a chemical reaction • the act of a compound breaking down into simpler products • reaction when 1 element replaces another element in a compound • reaction in which energy is released in the form of light or heat • ...

Chemical Reaction VOcabulary 2025-03-31

Chemical Reaction VOcabulary crossword puzzle
Across
  1. a process in which atoms rearrange to form new substances
  2. something that is made of all the same atoms or groups of atoms
  3. to change the order or position of something
  4. the temperature at which a substance changes from the liquid phase to the gas phase
  5. the relative size of things
  6. a substance that is added to soil to help plants grow
Down
  1. an ending substance that is made during a chemical reaction
  2. a structure formed by repeating groups of atoms linked together in a large
  3. a starting substance that is part of a chemical reaction
  4. point the temperature at which a substance changes from the solid phase to the liquid phase
  5. able to cause damage
  6. letters and numbers showing the types and number of atoms that repeat to make up a substance
  7. an object, diagram, or computer program that helps us understand something by making itsimpler or easier to see
  8. the tiny pieces that all matter—all the stuff in the world—is made of
  9. a group of atoms joined together in a particular way

15 Clues: able to cause damage • the relative size of things • to change the order or position of something • a group of atoms joined together in a particular way • a substance that is added to soil to help plants grow • a starting substance that is part of a chemical reaction • a process in which atoms rearrange to form new substances • ...

Stoichiometry 2022-10-21

Stoichiometry crossword puzzle
Across
  1. denotes amount (number) of a compound, changed during balancing
  2. (aq) subscript
  3. a starting substance that undergoes a chemical reaction
  4. (g) subscript
  5. atoms are neither created nor destroyed in a chemical reaction
  6. unbalanced reaction
  7. a substance needed for the reaction to occur, but not a reactant or product
  8. reactant that determines the maximum amount of product that can be made
  9. changing coefficients in a chemical equation to follow Law of Conservation
  10. the amount of product that should be produced based on limiting reactant
  11. Δ
Down
  1. reactant left over after a reaction
  2. actual yield/theoretical yield * 100
  3. # of values in an measurement (includes known and estimated values)
  4. (l) subscript
  5. denotes # of atoms or state of a compound
  6. a substance created after a reaction
  7. conversion of amount of one substance to the amount of another
  8. (s) subscript
  9. the amount of product you get after performing the reaction

20 Clues: Δ • (g) subscript • (l) subscript • (s) subscript • (aq) subscript • unbalanced reaction • reactant left over after a reaction • actual yield/theoretical yield * 100 • a substance created after a reaction • denotes # of atoms or state of a compound • a starting substance that undergoes a chemical reaction • the amount of product you get after performing the reaction • ...

Stoichiometry 2022-10-21

Stoichiometry crossword puzzle
Across
  1. denotes amount (number) of a compound, changed during balancing
  2. (aq) subscript
  3. a starting substance that undergoes a chemical reaction
  4. (g) subscript
  5. atoms are neither created nor destroyed in a chemical reaction
  6. unbalanced reaction
  7. a substance needed for the reaction to occur, but not a reactant or product
  8. reactant that determines the maximum amount of product that can be made
  9. changing coefficients in a chemical equation to follow Law of Conservation
  10. the amount of product that should be produced based on limiting reactant
  11. Δ
Down
  1. reactant left over after a reaction
  2. actual yield/theoretical yield * 100
  3. # of values in an measurement (includes known and estimated values)
  4. (l) subscript
  5. denotes # of atoms or state of a compound
  6. a substance created after a reaction
  7. conversion of amount of one substance to the amount of another
  8. (s) subscript
  9. the amount of product you get after performing the reaction

20 Clues: Δ • (g) subscript • (l) subscript • (s) subscript • (aq) subscript • unbalanced reaction • reactant left over after a reaction • actual yield/theoretical yield * 100 • a substance created after a reaction • denotes # of atoms or state of a compound • a starting substance that undergoes a chemical reaction • the amount of product you get after performing the reaction • ...

Chemistry Reactions 2023-07-17

Chemistry Reactions crossword puzzle
Across
  1. A reaction that releases energy to its surroundings, often resulting in an increase in temperature.
  2. determined by the number of electrons it can gain, lose, or share to form chemical bonds with other atoms.
  3. A reaction that absorbs energy from its surroundings, often resulting in a decrease in temperature.
  4. The smallest unit of a chemical element that retains its unique properties.
  5. A substance that changes colour used to detect the presence of specific substances.
  6. A substance that donates hydrogen ions (H+) or accepts electron pairs in a chemical reaction, typically characterized by a sour taste, the ability to turn litmus paper red, and the ability to react with bases to form salts.
  7. A chemical reaction between an acid and a base, resulting in the formation of a salt and water, and typically characterized by the neutralization of acidic and basic properties.
  8. The formation of a solid (precipitate) from a solution due to a chemical reaction between dissolved substances.
  9. A substance that accepts hydrogen ions (H+) or donates electron pairs in a chemical reaction, typically characterized by a bitter taste, a slippery feel, the ability to turn litmus paper blue, and the ability to react with acids to form salts.
Down
  1. of Mass The principle that states that the total mass of a closed system remains constant during a chemical reaction or physical change.
  2. A substance that undergoes a chemical reaction and is consumed or transformed to produce one or more new substances called products.
  3. A rapid chemical reaction between a fuel (such as a hydrocarbon) and an oxidant (usually oxygen) that produces heat and light.
  4. Bond A type of chemical bond in which two atoms share one or more pairs of electrons
  5. Change A process in which one or more substances are transformed into different substances with distinct chemical properties. It usually involves the breaking and formation of chemical bonds.
  6. A substance that is formed as a result of a chemical reaction.
  7. change A change in the physical properties of a substance, such as its shape, size, or state, without a change in its chemical composition.
  8. Bond A type of chemical bond that forms between two atoms when one or more electrons are transferred from one atom to another

17 Clues: A substance that is formed as a result of a chemical reaction. • The smallest unit of a chemical element that retains its unique properties. • A substance that changes colour used to detect the presence of specific substances. • Bond A type of chemical bond in which two atoms share one or more pairs of electrons • ...

julia stearns 2019-06-11

julia stearns crossword puzzle
Across
  1. Calcium Oxide
  2. A number written to the right of a chemical symbol and slightly below it
  3. In which only valence electrons of a particular element are shown in dots
  4. Uses chemical symbols to represent the atoms of the elements and their ratios in a chemical compoun
  5. The compound you have at the beginning of the reaction
  6. Matter is not created or destroyed
  7. AB + C= CB + A
  8. Energy is released
  9. A substance that initiates or accelerates a chemicla reaction without itslef being affected
  10. AB= A+B
  11. Tells how many atoms,molecules, or formula units take part in a reaction
  12. A chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light
  13. Two non-metals
  14. Sodium Fluoride
Down
  1. AB + CD= AD +BC
  2. Metal and a non-metal
  3. Energy is absorbed
  4. A chemical change in which a substance combines with oxygen, as when iron oxidizes, forming rust
  5. A + B= AB
  6. A change in which one or more substances are converted to a new substance
  7. an outer shell electron that is associated with an atom, and that can participate in the formation of a chemical bond
  8. An easier way to show a chemical reaction ,with symbols
  9. Chemical compound for table salt
  10. The compound you have after the reaction
  11. Chemical compound for water
  12. Barium Oxide
  13. A mutual group of atoms held together by covalent bonds
  14. Positively charged, electrons are lost
  15. Atoms or groups of atoms with a charge
  16. Negatively charged, electrons are gained

30 Clues: AB= A+B • A + B= AB • Barium Oxide • Calcium Oxide • AB + C= CB + A • Two non-metals • AB + CD= AD +BC • Sodium Fluoride • Energy is absorbed • Energy is released • Metal and a non-metal • Chemical compound for water • Chemical compound for table salt • Matter is not created or destroyed • Positively charged, electrons are lost • Atoms or groups of atoms with a charge • ...

Unit B - Matter and Chemical Change - Drew kinney 2017-11-15

Unit B - Matter and Chemical Change - Drew kinney crossword puzzle
Across
  1. Cloudy mixture that can't be separated
  2. Cloudy mixture that can be separated
  3. Releases heat energy
  4. Occurs when two or more materials react and create new materials
  5. Chemical combination of two or more elements in a specific ratio
  6. When non-metals combine
  7. Total mass of these products is always the same as the total mass of the reactants
  8. Workplace Hazardous Material Information System (abbreviation)
  9. Is a chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
Down
  1. Is a slow chemical change
  2. Absorbs heat energy
  3. Anything on the periodic table, made of one atom
  4. An experiment in which one or more products of a chemical reaction can escape
  5. A substance that reacts with a substance
  6. Mixture of two or more pure substances that looks like one substance
  7. A change in matter that is reversible
  8. Is a chemical reaction that takes place in the cells in your body
  9. Organic catalysts
  10. A change in matter that is non-reversible
  11. A new substance created with a chemical reaction
  12. The speed of a chemical reaction
  13. metal + non-metal
  14. An atom or a group of atoms that had been electrically charged
  15. Are substances that help a reaction proceed faster
  16. Anything that occupies mass and takes space

25 Clues: Organic catalysts • metal + non-metal • Absorbs heat energy • Releases heat energy • When non-metals combine • Is a slow chemical change • The speed of a chemical reaction • Cloudy mixture that can be separated • A change in matter that is reversible • Cloudy mixture that can't be separated • A substance that reacts with a substance • A change in matter that is non-reversible • ...

Unit B - Matter and Chemical Change Crossword 2017-11-10

Unit B - Matter and Chemical Change Crossword crossword puzzle
Across
  1. Anything that has mass and occupies space
  2. Is a chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  3. Is a slow chemical change
  4. Organic catalysts
  5. A change in matter that is non-reversible
  6. When non-metals combine
  7. Chemical combination of two or more elements in a specific ratio
  8. An atom or a group of atoms that had been electrically charged
  9. Cloudy mixture that can't be separated
  10. Occurs when two or more materials react and create new materials
  11. A substance that reacts with a substance
  12. An experiment in which one or more products of a chemical reaction can escape
  13. Is a chemical reaction that takes place in the cells in your body
  14. Anything on the periodic table, made of one atom
Down
  1. Releases heat energy
  2. Cloudy mixture that can be separated
  3. metal + non-metal
  4. The speed of a chemical reaction
  5. Mixture of two or more pure substances that looks like one substance
  6. Total mass of these products is always the same as the total mass of the reactants
  7. A change in matter that is reversible
  8. A new substance created with a chemical reaction
  9. Absorbs heat energy
  10. Workplace Hazardous Material Information System (abbreviation)
  11. Are substances that help a reaction proceed faster

25 Clues: metal + non-metal • Organic catalysts • Absorbs heat energy • Releases heat energy • When non-metals combine • Is a slow chemical change • The speed of a chemical reaction • Cloudy mixture that can be separated • A change in matter that is reversible • Cloudy mixture that can't be separated • A substance that reacts with a substance • Anything that has mass and occupies space • ...