chemical reaction Crossword Puzzles

C1.3 Chemical reactions 2024-04-29

C1.3 Chemical reactions crossword puzzle
Across
  1. A change that is reversible, in which new substances are not made. Examples of physical changes include changes of state, and dissolving.
  2. a material that releases energy when it burns
  3. a change in which energy is absorbed from the surroundings
  4. Possible source of danger
  5. A change in which atoms are rearranged to create new substances.
  6. an equation in which the reactants and products in a chemical reaction are represented by words (their names). The arrow in the equation means 'reacts to make'
  7. A chemical change in which a substance combines with oxygen, for example; when iron oxidises, forming rust
  8. A chemical reaction that breaks down compounds into simpler products.
  9. A rapid reaction between oxygen and fuel that results in heat and light
  10. a change in which energy is released to the surroundings
  11. The chance of damage or injury from a hazard
Down
  1. a substance that forms in a chemical reaction
  2. the principle stating that matter is not created or destroyed during a chemical reaction. The total mass of products produced is equal to the total mass of reactants used.
  3. A fuel made from the remains of animals and plants that died millions of years ago. Fossil fuels include coal, oil, and natural gas.
  4. Resources that cannot be replenished at rate they are used. The will one day run out.
  5. a starting substance in a chemical reaction
  6. a variable that can only have a whole-number value

17 Clues: Possible source of danger • a starting substance in a chemical reaction • The chance of damage or injury from a hazard • a substance that forms in a chemical reaction • a material that releases energy when it burns • a variable that can only have a whole-number value • a change in which energy is released to the surroundings • ...

Routt A&P Chem 1 2021-10-11

Routt A&P Chem 1 crossword puzzle
Across
  1. atoms combine with other atoms or atoms dissociate from other atoms
  2. the process of radioisotope decay
  3. a weak chemical bond formed by the attraction of polar molecules
  4. chart listing all elements and information about each one
  5. a heavier unstable element that breaks down (decays) to a lighter more stable element
  6. a molecule composed of two or more different elements
  7. a neutral molecule that is slightly positive on one end and slightly negative on the other end
  8. chemicals at the beginning of the chemical reaction
  9. anything that has mass and occupies space.
  10. chemical reaction which breaks atoms/molecules apart to form smaller ones AB > A + B
  11. a subatomic particle with no charge found in the atomic nucleus
  12. Small particles formed when atoms form chemical bonds.
  13. an average atomic mass based on numbers of an element’s isotopes found in nature
  14. a negatively charged subatomic particle found moving around the atomic nucleus at some distance
  15. the number of protons an atom has.
  16. chemicals formed at the end of a chemical reaction
  17. A very small particle made of protons, neutrons, and electrons.
  18. sentence used to show the reactants and products of a chemical reaction
  19. the core of an atom made of protons and neutrons
Down
  1. these hold atoms together to form molecules. there are 3 kinds
  2. In nature there are 92 kinds of atoms. Each kind is called an _____.
  3. a strong chemical bond formed by the attraction of oppositely charged ions.
  4. Symbols used to show the atomic make up of a molecule
  5. an atom with an unusual number of neutrons
  6. both a synthesis and decomposition reaction AB + C > AC + B and AB + CD > AC + BD
  7. the total number of protons plus neutrons in an atom
  8. a positively charged subatomic particle found in the atomic nucleus
  9. chemical reaction which links atoms/molecules together to form bigger ones A + B > AB
  10. One or 2 letters that represent an element.
  11. a strong chemical bond formed when atoms share pairs of electrons

30 Clues: the process of radioisotope decay • the number of protons an atom has. • an atom with an unusual number of neutrons • anything that has mass and occupies space. • One or 2 letters that represent an element. • the core of an atom made of protons and neutrons • chemicals formed at the end of a chemical reaction • chemicals at the beginning of the chemical reaction • ...

Science Crossword 2015-08-10

Science Crossword crossword puzzle
Across
  1. puts out energy
  2. a way to write how a reaction works
  3. expresses the acidity or alkalinity of a substance
  4. turns litmus blue
  5. ph of 7
  6. a reaction that neturalises the acids and bases
  7. can only be brought over the age of 18
  8. fire
  9. a fuel devised from living matter
Down
  1. changes colour depending on ph level
  2. takes in energy
  3. ph under 7
  4. changes colour depending on the amount of acids or bases in the substance
  5. used by plants to convert light energy into chemical energy
  6. an equation to show what the reactants produce
  7. coal or gas
  8. a white substance that is found in our sea water
  9. formed by natural processes
  10. same amount of atoms of each side of the equation
  11. ph over 7

20 Clues: fire • ph of 7 • ph over 7 • ph under 7 • coal or gas • puts out energy • takes in energy • turns litmus blue • formed by natural processes • a fuel devised from living matter • a way to write how a reaction works • changes colour depending on ph level • can only be brought over the age of 18 • an equation to show what the reactants produce • a reaction that neturalises the acids and bases • ...

Chemistry 2013-06-17

Chemistry crossword puzzle
Across
  1. mixture/ the same apperence and property throughout the whole mixture.
  2. row of elements.
  3. combination of two or more substances that are not chemically combined.
  4. pure substance that cannot be seperated into simpler substances by chemical or physical means.
  5. electrons/ electrons in their outter most energy level.
  6. gases/unreactive nonmetals.
  7. repeating pattern.
  8. particles that form during chemical changes.
Down
  1. the substances formed from a chemical reaction.
  2. explanantion for a broad range of hypothosises and observations.
  3. the starting materials in a chemical reaction.
  4. representation of an object or a symbol.
  5. equation/a shorthand description of a chemical reaction using chemical formulas and symbols.
  6. charged particles found in all atoms.
  7. reactive nonmetals.
  8. smallest particle into which an element can be divided and still be the same substance.
  9. pure substance composed of two or more elements that are chemically combined.

17 Clues: row of elements. • repeating pattern. • reactive nonmetals. • gases/unreactive nonmetals. • charged particles found in all atoms. • representation of an object or a symbol. • particles that form during chemical changes. • the starting materials in a chemical reaction. • the substances formed from a chemical reaction. • electrons/ electrons in their outter most energy level. • ...

Chemistry 2013-06-17

Chemistry crossword puzzle
Across
  1. unifying explanantion for a broad range of hypothosises and observations.
  2. charged particles that form during chemical changes.
  3. the substances formed from a chemical reaction.
  4. negativley charged particles found in all atoms.
  5. representation of an object or a symbol.
  6. equation/a shorthand description of a chemical reaction using chemical formulas and symbols.
  7. the smallest particle into which an element can be divided and still be the same substance.
  8. very reactive nonmetals.
  9. a pure substance composed of two or more elements that are chemically combined.
Down
  1. a pure substance that cannot be seperated into simpler substances by chemical or physical means.
  2. electrons/ electrons in their outter most energy level.
  3. combination of two or more substances that are not chemically combined.
  4. mixture/ the same apperence and property throughout the whole mixture.
  5. horizontal row of elements.
  6. gases/unreactive nonmetals.
  7. regualr repeating pattern.
  8. the starting materials in a chemical reaction.

17 Clues: gases/unreactive nonmetals. • horizontal row of elements. • regualr repeating pattern. • very reactive nonmetals. • representation of an object or a symbol. • the starting materials in a chemical reaction. • the substances formed from a chemical reaction. • negativley charged particles found in all atoms. • ...

Chemistry 2013-06-17

Chemistry crossword puzzle
Across
  1. repeating pattern.
  2. particles that form during chemical changes.
  3. pure substance composed of two or more elements that are chemically combined.
  4. gases/unreactive nonmetals.
  5. representation of an object or a symbol.
  6. substances formed from a chemical reaction.
  7. combination of two or more substances that are not chemically combined.
  8. charged particles found in all atoms.
  9. mixture/ the same apperence and property throughout the whole mixture.
Down
  1. row of elements.
  2. electrons/ electrons in their outter most energy level.
  3. equation/a shorthand description of a chemical reaction using chemical formulas and symbols.
  4. starting materials in a chemical reaction.
  5. smallest particle into which an element can be divided and still be the same substance.
  6. reactive nonmetals.
  7. pure substance that cannot be seperated into simpler substances by chemical or physical means.
  8. explanantion for a broad range of hypothosises and observations.

17 Clues: row of elements. • repeating pattern. • reactive nonmetals. • gases/unreactive nonmetals. • charged particles found in all atoms. • representation of an object or a symbol. • starting materials in a chemical reaction. • substances formed from a chemical reaction. • particles that form during chemical changes. • electrons/ electrons in their outter most energy level. • ...

Chemical Reactions 2024-10-15

Chemical Reactions crossword puzzle
Across
  1. A ___ is the substance that is formed from a chemical reaction.
  2. A chemical ___ visually represents a chemical reaction.
  3. The subscript represents the number of ___ in a chemical formula.
  4. The ___ is the number in front of a chemical formula.
  5. What is the subscript on hydrogen in the following substance: 3H₂O?
  6. The arrow in a chemical equation is called the ___ sign.
  7. Products are shown on the ___ of the yield sign.
Down
  1. The ___ is the smaller number to the right of an atom in a chemical formula.
  2. The coefficient represents the number of ___ reacting or produced.
  3. A ___ is the substance that undergoes the change in a chemical reaction.
  4. What is the coefficient in the following substance: 3H₂O?
  5. True or false? Products in a chemical reaction have the same properties as the reactants.
  6. What is the subscript on oxygen in the following substance: 3H₂O?
  7. Reactants are shown on the ___ of the yield sign.

14 Clues: Products are shown on the ___ of the yield sign. • Reactants are shown on the ___ of the yield sign. • The ___ is the number in front of a chemical formula. • A chemical ___ visually represents a chemical reaction. • The arrow in a chemical equation is called the ___ sign. • What is the coefficient in the following substance: 3H₂O? • ...

Chemistry Vocabulary 2014-10-30

Chemistry Vocabulary crossword puzzle
Across
  1. reaction / separation of chemical compounds into elements
  2. of conservation of matter / principle of mass conservation
  3. reaction / purposeful executions of chemical reactions to obtain a product
  4. replacement reaction / two reactant ionic compounds exchange ions to form two new products
  5. solution / solution where solvent is water
Down
  1. reaction / all chemical reactions in which their oxidation state is changed
  2. reaction / high temperature exothermic reaction between fuel and oxidant
  3. / solvent dissolving to form a solution
  4. ionic equation / used to describe chemical equation while indicating reactants or products
  5. equilibrium / the state in which both the reactants and products are present in concentration
  6. replacement reaction / type of oxidation reduction chemical reaction

11 Clues: / solvent dissolving to form a solution • solution / solution where solvent is water • reaction / separation of chemical compounds into elements • of conservation of matter / principle of mass conservation • replacement reaction / type of oxidation reduction chemical reaction • reaction / high temperature exothermic reaction between fuel and oxidant • ...

Chapter 8 Crossword Puzzle 2025-01-21

Chapter 8 Crossword Puzzle crossword puzzle
Across
  1. A metabolic pathway that consumes energy to synthesize a complex molecule from simpler molecules
  2. A process that occurs without an overall input of energy; a process that is energetically favorable
  3. In cellular metabolism, the use of energy released from an exergonic reaction to drive an endergonic reaction
  4. Energy that can be associated with the relative motion of objects
  5. the capacity to cause change
  6. A measure of molecular disorder or randomness
  7. An adenine-containing nucleoside triphosphate that releases free energy when it phosphate bonds are hydrolyzed. This energy is used to drive endergonic reactions in cells
  8. A process by which a chemical agent called a catalyst selectively increases the rate of a reaction without being consumed by the reaction
  9. The portion of a biological system’s energy that can perform work when temperature and pressure are uniform throughout the system
  10. A metabolic pathway that releases energy by breaking down complex molecules to simpler molecules
  11. Kinetic energy associated with the random movement of atoms or molecules;
  12. The amount of energy that reactants must absorb before a chemical reaction will start also called free energy of activation
  13. The totality of an organism’s chemical reactions, consisting of catabolic and anabolic pathways, which manage the material and energy resources of the organism
  14. The study of the energy transformations that occur in a collection of matter
Down
  1. The reactant on which an enzyme works
  2. Energy can be transferred and transformed, but it cannot be created or destroyed.
  3. The specific region of an enzyme that binds the substrate and that forms the pocket in which catalysis occurs
  4. Potential energy available for release in a chemical reaction
  5. The overall flow and transformation of energy in an organism
  6. A spontaneous chemical reaction in which there is a net release of free energy
  7. A nonspontaneous chemical reaction in which free energy is absorbed from the surroundings
  8. A temporary complex formed when an enzyme binds to its substrate molecule(s)
  9. Every energy transfer or transformation increases the entropy of the universe
  10. A molecule with a phosphate group covalently bound to it, making it more reactive than the unphosphorylated molecule
  11. A series of chemical reactions that either builds a complex molecule (anabolic pathway) or breaks down a complex molecule to simpler molecules (catabolic pathway)
  12. Energy that is not kinetic
  13. Caused by entry of the substrate, the change in shape of the active site of an enzyme so that it binds more snugly to the substrate

27 Clues: Energy that is not kinetic • the capacity to cause change • The reactant on which an enzyme works • A measure of molecular disorder or randomness • The overall flow and transformation of energy in an organism • Potential energy available for release in a chemical reaction • Energy that can be associated with the relative motion of objects • ...

Energy changes in chemical reactions 2022-05-27

Energy changes in chemical reactions crossword puzzle
Across
  1. Fuels are useful because they are capable of releasing ____ amounts of energy as heat.
  2. Simplest hydrocarbon?
  3. Endothermic reaction- heat is _____ in?
  4. The heat of combustion is the energy change of a reaction when substance is
  5. Chemical bonds are forces of attraction between atoms or ....?
  6. All combustion reactions are ______?
  7. Major characteristics that make these fuels so useful, they are easy to ____ and burn.
  8. Exothermic reaction- heat is _____ out?
  9. The reaction between Nitrogen and Oxygen is what kind of reaction?
  10. During endothermic reaction the temperature _____
  11. example of endothermic reaction is ice ____?
Down
  1. Molecules contain only the elements carbon and hydrogen called?
  2. Some bonds are stronger than others. They require more energy to break them, but they give out ____ energy when they are formed.
  3. heat given out?
  4. heat taken in?
  5. _____ chemical bonds takes in energy from the surroundings.
  6. nitrogen+oxygen=nitrogen_____
  7. _____ chemical bonds gives out energy to the surroundings.
  8. During exothermic reaction the temperature _____?
  9. Methane reacting with oxygen to produce carbon dioxide and water is what reaction?

20 Clues: heat taken in? • heat given out? • Simplest hydrocarbon? • nitrogen+oxygen=nitrogen_____ • All combustion reactions are ______? • Endothermic reaction- heat is _____ in? • Exothermic reaction- heat is _____ out? • example of endothermic reaction is ice ____? • During exothermic reaction the temperature _____? • During endothermic reaction the temperature _____ • ...

Reactions 2019-05-12

Reactions crossword puzzle
Across
  1. for combustion to occur you need to have heat, fuel and _______
  2. before a fuel is burnt, energy is stored in the form of _______ energy
  3. two or more different elements chemically bonded together
  4. the scientific word for the process of burning
  5. during a chemical reactions b_____ between atoms are formed and/or broken
  6. during a chemical reaction mass is c_________ (kept the same)
  7. the periodic table consists of _________.
Down
  1. in the periodic table C is the symbol for ________
  2. every atom is made of _______, neutrons and electrons
  3. the substance(s) present before a chemical reaction
  4. in the periodic table H is the symbol for ________
  5. during a chemical reactions atoms are r_________
  6. a state change (e.g. melting) is reversible and is therefore a ________ change
  7. the substance(s) present after a chemical reaction
  8. the combustion reaction releases _______ energy

15 Clues: the periodic table consists of _________. • the scientific word for the process of burning • the combustion reaction releases _______ energy • during a chemical reactions atoms are r_________ • in the periodic table C is the symbol for ________ • in the periodic table H is the symbol for ________ • the substance(s) present after a chemical reaction • ...

Chemical Processes and Equations Vocabulary 2026-01-07

Chemical Processes and Equations Vocabulary crossword puzzle
Across
  1. Change that takes place when two or more substances interact to form new substances.
  2. A way of describing the number of atoms that make up one molecule of a compound.
  3. Transfer of energy in the form of electromagnetic waves.
  4. Compounds or elements that are the result of a chemical reaction
Down
  1. Chemical reaction in which energy is absorbed, usually getting colder.
  2. States that matter can neither be created nor destroyed, it can only change form.
  3. Chemical reaction in which energy is given off, usually as thermal energy.
  4. States that energy cannot be created or destroyed, it can only change form or be transferred.
  5. Thermal energy
  6. Transfer of heat in a fluid in which the warmer fluid rises and the cooler fluid sinks in currents.
  7. Compounds or elements that change during a chemical reaction.
  8. Transfer of heat through direct contact.
  9. A way of writing changes in the arrangement of atoms during a chemical reaction using chemical symbols.
  10. Substance that helps start or speed up a reaction between two other substances, without being changed by the reaction.

14 Clues: Thermal energy • Transfer of heat through direct contact. • Transfer of energy in the form of electromagnetic waves. • Compounds or elements that change during a chemical reaction. • Compounds or elements that are the result of a chemical reaction • Chemical reaction in which energy is absorbed, usually getting colder. • ...

Chemical reactions 2023-11-06

Chemical reactions crossword puzzle
Across
  1. equation symbolic representationntion of a chemical reaction
  2. increases rate of chemical reaction
  3. displacement reaction when one element is
  4. manufactured substance
  5. release of heat
  6. loses more fluid then taken in
Down
  1. group of atoms bonded together
  2. action preformed
  3. absorption absobtion of heat
  4. combination of ideas
  5. process of burning something
  6. undergo change during a reaction

12 Clues: release of heat • action preformed • combination of ideas • manufactured substance • absorption absobtion of heat • process of burning something • group of atoms bonded together • loses more fluid then taken in • undergo change during a reaction • increases rate of chemical reaction • displacement reaction when one element is • ...

stoichiometry 2025-11-17

stoichiometry crossword puzzle
Across
  1. Shows equal numbers of atoms of each element on each side of the equation.
  2. Numbers placed in front of the chemical formulas for the reactants and products of a reaction to balance the equation.
  3. A unit used to measure the amount of a substance; one mole contains 6.02 × 10²³ particles.
  4. 6.02 × 10²³ formula units of a substance in one mole.
  5. The substances formed as a result of a chemical reaction.
  6. States that the total mass of the products of a chemical reaction is the same as the total mass of the reactants.
  7. The quantity of product actually obtained from a reaction, which is always less than or equal to the theoretical yield.
  8. A reactant that is completely consumed in a reaction, which stops the reaction.
  9. The formula weight of a molecular formula.
  10. The sum of the atomic weights of the atoms in a compound’s formula.
Down
  1. Compares the actual yield to the theoretical yield using the equation.
  2. Reactions in which two reactants combine to form one product.
  3. Reactions in oxygen in which a substance, typically a hydrocarbon, reacts rapidly with O₂ to form CO₂ and H₂O.
  4. The quantity of product calculated to form when all of the limiting reactant reacts.
  5. A technique for determining the empirical formulas of compounds containing only carbon, hydrogen, and/or oxygen.
  6. The starting substances in a chemical reaction that undergo change.
  7. The study of the quantitative relationships between chemical equations.
  8. Can be determined from a substance’s percent composition by calculating the relative number of moles of each atom in 100 g of the substance.
  9. Reactions in which a single reactant forms two or more products.
  10. The mass of one mole of atoms, molecules, or other formula units expressed in grams.

20 Clues: The formula weight of a molecular formula. • 6.02 × 10²³ formula units of a substance in one mole. • The substances formed as a result of a chemical reaction. • Reactions in which two reactants combine to form one product. • Reactions in which a single reactant forms two or more products. • The starting substances in a chemical reaction that undergo change. • ...

Spring Final Vocabulary Word Review 2025-05-13

Spring Final Vocabulary Word Review crossword puzzle
Across
  1. the partial positive or negative charge in a polar bond
  2. substance that changes in a chemical reaction
  3. the large number in front of a molecule in a chemical reaction
  4. a type of reaction where a molecule splits apart AB->A+B
  5. group 18 on the periodic table, these elements do not react
  6. the tendency of an atom in a molecule to attract the shared pair of electrons towards itself.​
  7. a type of reaction that makes carbon dioxide and water
  8. the reactant you use up in a reaction.
  9. a type of reaction where an two elements replace each other in the reaction AB+CD->AD+BC
  10. the reactant you have left over after the reaction is complete
  11. type of elements that have properties of both metals and nonmetals
Down
  1. the small number after the element symbol to signify how many of that element are in the molecule
  2. an elements ability to transfer energy in the form of heat and electricity
  3. what you make in a chemical reaction
  4. Electrons are distributed unevenly
  5. group 17 on the periodic table, these elements form -1 anions
  6. a type of reaction where an element replaces another element in the molecule A+BC->B+AC
  7. group 1 on the periodic table, these elements form +1 cations

18 Clues: Electrons are distributed unevenly • what you make in a chemical reaction • the reactant you use up in a reaction. • substance that changes in a chemical reaction • a type of reaction that makes carbon dioxide and water • the partial positive or negative charge in a polar bond • a type of reaction where a molecule splits apart AB->A+B • ...

Chemistry Crossword 2017-11-16

Chemistry Crossword crossword puzzle
Across
  1. Releases heat energy
  2. Is a slow chemical change that occurs when oxygen in the air reacts with a metal
  3. A substance that reacts with another substance or substances in a chemical reaction to create a new substance with different products or properties
  4. A negative charge
  5. When non-metals combine, they procedure a pure substance called a molecule or...
  6. Made up of two or more substances
  7. A chemical reaction takes place when two or more substances combine to form a new substance
  8. Can't be separated
  9. Is a chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy.
  10. Made up of one or more atoms
  11. Can be separated
  12. Anything that has mass and occupies space
  13. Table of elements
  14. Made up of one atom
Down
  1. A positive charge
  2. Made up of one type of matter
  3. Respiration Is a chemical reaction that takes place in the cells in your body
  4. Eats up material
  5. Absorbs heat energy
  6. Appearance and composition
  7. Caution Symbol
  8. When the experiment doesn't touch air (in a bag)
  9. CO
  10. A neutral charge
  11. Matter that creates volume or mass

25 Clues: CO • Caution Symbol • Eats up material • Can be separated • A neutral charge • A positive charge • A negative charge • Table of elements • Can't be separated • Absorbs heat energy • Made up of one atom • Releases heat energy • Appearance and composition • Made up of one or more atoms • Made up of one type of matter • Made up of two or more substances • Matter that creates volume or mass • ...

Science 24 chemistry unit review 2022-05-05

Science 24 chemistry unit review crossword puzzle
Across
  1. workplace hazardous material information system
  2. two or more substances react together
  3. installed in smokestacks to remove sulfur
  4. acid and base produce salt compound
  5. man-made fibres (as cloth or thread)
  6. substance or material has very large molecules
  7. chemical reaction that absorbs heat
  8. substances use chemicals to kill plants/animals
  9. trap heat in earths atomsphere
  10. acidic materials are deposited on earth
Down
  1. chemical reaction that releases heat
  2. chemical reaction combines with oxygen produce heat and light
  3. changes in the climate
  4. chemical that kills plants
  5. chemically breaks down or degrades metal
  6. two or more metals mixed together

16 Clues: changes in the climate • chemical that kills plants • trap heat in earths atomsphere • two or more metals mixed together • acid and base produce salt compound • chemical reaction that absorbs heat • chemical reaction that releases heat • man-made fibres (as cloth or thread) • two or more substances react together • acidic materials are deposited on earth • ...

Unit 2 Vocab 2021-09-28

Unit 2 Vocab crossword puzzle
Across
  1. compound with an amino group on one end and a carboxyl group on the other end
  2. small chemical unit that makes up a polymer
  3. reactant of an enzyme-catalyzed reaction
  4. substance formed as a result of a chemical reaction
  5. type of bond between atoms in which the electrons are shared
  6. the basic unit of matter
  7. The center of an atom, which contains the protons and neutrons
  8. negatively charged particle that orbits the nucleus in the electron cloud
  9. molecules composed of many monomers
  10. fats, oils, and waxes
  11. energy that is needed to get a reaction started
  12. a reaction that absorbs energy
  13. the number of protons in the nucleus of an atom
  14. biological catalysts
  15. macromolecule made up of amino acids
  16. equal to the total number of protons and neutrons in the nucleus of an atom
Down
  1. electron found in the outermost shell of an atom
  2. one or two-letter abbreviation for a chemical element name
  3. compound made up of carbon, hydrogen, and oxygen atoms
  4. Positively charged particle found in the nucleus of an atom
  5. a combination of 2 or more elements connected by bonds
  6. macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
  7. subunit of which nucleic acids are composed
  8. a large organic molecule made up of many atoms
  9. process that changes one set of chemicals into another set of chemicals
  10. substance that speeds up the rate of a chemical reaction
  11. particle found in the nucleus that has no charge
  12. elements or compounds that enter into a chemical reaction
  13. pure substance that consists entirely of one type of atom
  14. a reaction that releases energy

30 Clues: biological catalysts • fats, oils, and waxes • the basic unit of matter • a reaction that absorbs energy • a reaction that releases energy • molecules composed of many monomers • macromolecule made up of amino acids • reactant of an enzyme-catalyzed reaction • small chemical unit that makes up a polymer • subunit of which nucleic acids are composed • ...

Chemistry Molecules 2025-10-15

Chemistry Molecules crossword puzzle
Across
  1. the smallest unit of matter that still has the properties of an element
  2. describes a bond or molecule where electrons are shared unequally, creating partial charges
  3. the ability to do work or cause change, often involved in making or breaking bonds
  4. an atom or group of atoms that has gained or lost electrons and has a charge
  5. a substance formed as a result of a chemical reaction
  6. a measure of how strongly an atom attracts electrons in a bond
  7. a type of bond formed when one atom transfers electrons to another
  8. the arrangement of atoms in a molecule, including bond angles and shape
  9. a type of bond formed when two atoms share electrons
  10. a force that holds atoms together in a molecule or compound
  11. a type of bond found in metals where atoms share a sea of electrons
Down
  1. describes a bond or molecule where electrons are shared equally between atoms
  2. a type of reaction where one element takes the place of another in a compound
  3. a chemical reaction where one compound breaks down into simpler substances
  4. a process where substances change into new substances with different properties
  5. a chemical reaction in which a substance reacts with oxygen and releases energy as heat and light
  6. a chemical reaction where two or more substances combine to form one product
  7. a substance made of two or more different elements chemically combined
  8. a starting material that takes part in a chemical reaction
  9. two or more atoms bonded together that act as a single unit
  10. the number of electrons an atom can share, lose, or gain when bonding
  11. the process by which atoms are joined together to form compounds

22 Clues: a type of bond formed when two atoms share electrons • a substance formed as a result of a chemical reaction • a starting material that takes part in a chemical reaction • two or more atoms bonded together that act as a single unit • a force that holds atoms together in a molecule or compound • a measure of how strongly an atom attracts electrons in a bond • ...

Chapter 7 vocab 2024-01-02

Chapter 7 vocab crossword puzzle
Across
  1. the amount of a chemical substance that contains as many elementary entities
  2. 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.
  3. the mass of one mole of any substance
  4. a chemical reaction that involves the release of energy in the form of heat or light.
  5. a reaction in which one element is substituted for another element in a compound.
  6. a reaction in which a compound breaks down into two or more simpler substances.
  7. an article or substance that is manufactured or refined for sale.
  8. energy stored in the bonds of atoms and molecules.
  9. a type of reaction in which multiple reactants combine to form a single product
Down
  1. are reactions that involve the transfer of electrons from one species to another.
  2. have two ionic compounds that are exchanging anions or cations
  3. any chemical reaction that absorbs heat from its environment.
  4. a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.
  5. substance that takes part in and undergoes change during a reaction.
  6. a representation of a chemical reaction using symbols of the elements to indicate the amount of substance, usually in moles, of each reactant and product.

15 Clues: the mass of one mole of any substance • energy stored in the bonds of atoms and molecules. • any chemical reaction that absorbs heat from its environment. • have two ionic compounds that are exchanging anions or cations • an article or substance that is manufactured or refined for sale. • substance that takes part in and undergoes change during a reaction. • ...

Kelsy's crossword 2016-11-01

Kelsy's crossword crossword puzzle
Across
  1. changes the rate of the chemical reaction without being used up very much
  2. a solid that is produced as a result of a chemical reaction in a solution
  3. a substance or molecule that participates in a chemical reaction
Down
  1. a chemical relation in which heat is released to the surroundings
  2. A substance that slows or stops a chemical reaction
  3. reaction A chemical reaction that requires heat
  4. of conservation of mass mas can not be created or destroyed in ordanary chemical and physical changes
  5. reaction one or more substances change to produce one or more different substances
  6. energy A minimum amount of energy required to start a chemical reaction
  7. a substance that forms in a chemical reaction

10 Clues: a substance that forms in a chemical reaction • A substance that slows or stops a chemical reaction • reaction A chemical reaction that requires heat • a substance or molecule that participates in a chemical reaction • a chemical relation in which heat is released to the surroundings • changes the rate of the chemical reaction without being used up very much • ...

Chemistry Vocab 2025-04-28

Chemistry Vocab crossword puzzle
Across
  1. Involves the release of energy in the form of heat or light
  2. The basic building block of chemistry
  3. change A change in which the form of matter is alterred
  4. The force that holds atoms together
  5. Made up of one type of atom
  6. A substance present in a chemical reaction
  7. property A property that describes how a substance changes
  8. Amount of energy that is transferred from one system to its surroundings
  9. The capacity to do work
  10. Formed by absorbing heat
  11. Change Combines substances into new materials
  12. A chemical substance made up of two or more elements
  13. The measure of the amount of matter in an object
  14. Science that deals with composition structure and properties of substances
Down
  1. A substance that speeds up a chemical reaction
  2. Substances formed as the result of a chemical reaction
  3. Is a intermolecular for other molecules of the same kind
  4. The amount of space occupied by matter
  5. A group of two or more atoms
  6. A material substance
  7. The process by which chemicals interact to form new chemicals
  8. Property The characteristic of matter that can be observed and measured
  9. The measure of hotness or coldness of an object
  10. A physical blend of two or more substances

24 Clues: A material substance • The capacity to do work • Formed by absorbing heat • Made up of one type of atom • A group of two or more atoms • The force that holds atoms together • The basic building block of chemistry • The amount of space occupied by matter • A substance present in a chemical reaction • A physical blend of two or more substances • ...

Chapter 11 Vocab 2015-02-06

Chapter 11 Vocab crossword puzzle
Across
  1. A chemical change in which an element or a compound reacts with oxygen
  2. A chemical change in which one element replaces a second element in a compound
  3. A list of elements in order of decreasing activity
  4. An equation for a reaction in solution showing only those particles that are directly involved in the chemical change
  5. A substance that increases the rate of reaction by lowering the activation-energy barrier
  6. A small whole number that appears in front of a formula in a balanced chemical equation
Down
  1. A chemical change in which two or more substances react to form a single new substance
  2. An ion that is not directly involved in a chemical reaction; an ion that does not change oxidation number or composition during a reaction
  3. An expression representing a chemical reaction
  4. A chemical equation in which mass is conserved
  5. A chemical change in which a single compound is broken down into two or more simpler products
  6. A chemical change that involves an exchange of positive ions between two compounds
  7. A chemical equation that does not indicate the relative amounts of reactants and products
  8. An equation that shows dissolved ionic compounds as dissociated free ions

14 Clues: An expression representing a chemical reaction • A chemical equation in which mass is conserved • A list of elements in order of decreasing activity • A chemical change in which an element or a compound reacts with oxygen • An equation that shows dissolved ionic compounds as dissociated free ions • ...

Physical Science Crosswords 2025-08-21

Physical Science Crosswords crossword puzzle
Across
  1. and Respiration
  2. as Catalysts
  3. (Acid-Base)
  4. Bonds Breaking/Forming
  5. Reactions
  6. of Conservation of Mass
  7. Reactions
  8. Rate
  9. and Corrosion
  10. vs. Chemical Change
  11. Applications of Chemical Change
Down
  1. of Chemical Reactions
  2. Kinetics
  3. vs. Endothermic
  4. Examples of Chemical Change
  5. vs. Irreversible Reactions
  6. in Reactions
  7. and Reduction
  8. Energy
  9. Area
  10. Theory
  11. and Gases
  12. Chemical Equations
  13. of Chemical Change
  14. Size
  15. Equilibrium

26 Clues: Area • Size • Rate • Energy • Theory • Kinetics • Reactions • and Gases • Reactions • (Acid-Base) • Equilibrium • as Catalysts • in Reactions • and Reduction • and Corrosion • and Respiration • vs. Endothermic • Chemical Equations • of Chemical Change • vs. Chemical Change • of Chemical Reactions • Bonds Breaking/Forming • of Conservation of Mass • vs. Irreversible Reactions • Examples of Chemical Change • ...

Chemistry crossword 2017-03-26

Chemistry crossword crossword puzzle
Across
  1. A reaction that involves the breakdown of a compound into simpler substances
  2. An ion that does not take part in a chemical reaction
  3. A reaction that involves the building up of compounds by combining simpler substances, normally elements
  4. A theory stating that the particles involved in a chemical reaction must collide in order to react
  5. A strong acid readily releases a hydrogen ion in a chemical reaction
  6. A reaction used to prodduce solid products from solutions of ionic substances
  7. A smaller molecule from which polymers are made
  8. The number of active molecules in a set volume of solution
  9. a substance that can be broken down by bacteria, fungi and other living organisms
  10. a substance that increases the rate of a reaction but is not used up in the reaction
  11. a mixture of a solute dissolved in a solvent such as water
Down
  1. A long-chain molecule formed by the joining of many smaller repeating molecules
  2. An insoluble compound formed in a precipitation reaction
  3. An acid which most of its molecules release hydrogen ions into solution
  4. A reaction that involves te combination of oxygen with a fuel
  5. A reaction in which an acid and a base combine to produce a metal salt and water
  6. A molecule that contains only carbon and hydrogen atoms
  7. This refers to an acid solution with a high concentration of hydrogen ions
  8. How fast or slow a reaction proceeds
  9. Process of joining of smaller units to form a long-chain molecule
  10. A reaction that involves oxygen and releases light and heat energy
  11. A small number of active molecules

22 Clues: A small number of active molecules • How fast or slow a reaction proceeds • A smaller molecule from which polymers are made • An ion that does not take part in a chemical reaction • A molecule that contains only carbon and hydrogen atoms • An insoluble compound formed in a precipitation reaction • The number of active molecules in a set volume of solution • ...

Science is the besterest 2017-03-25

Science is the besterest crossword puzzle
Across
  1. a strong acid readily releases a hydrogen ion in a chemical reaction; can also be used to describe the bond between different atoms
  2. an object or a substance that can be broken down by bacteria, fungi and other living organisms
  3. process of joining of smaller units (monomers) to form a long-chain molecule (polymer)
  4. a reaction that involves the building up of compounds by combining simpler substances, normally elements
  5. an ion that does not take part in a chemical reaction
  6. the number of active molecules in a set volume of solution
  7. an acid which most of its molecules release hydrogen atoms into solution
  8. a reaction used to produce solid products from solutions of ionic substances
  9. a mixture of a solute dissolved in a solvent such as water
  10. a long-chain molecule formed by the joining of many smaller repeating molecules (monomers)
Down
  1. a reaction in which an acid and a base combine to produce a metal salt and water
  2. an insoluble compound formed in a precipitation reaction
  3. a reaction that involves the combination of oxygen with a fuel or metal
  4. a reaction that involves oxygen and releases light and heat energy
  5. a theory stating that the particles involved in a chemical reaction must collide in order to react
  6. this refers to an acid solution with a high concentration of hydrogen ions
  7. a reaction that involves the breakdown of a compound into simpler substances
  8. a small number of active molecules (such as acid) in a solution
  9. a molecule that contains only carbon and hydrogen atoms
  10. how fast or slow a reaction proceeds
  11. a substance that increases the rate of a reaction but is not used up in the reaction
  12. a small molecule from which polymers are made

22 Clues: how fast or slow a reaction proceeds • a small molecule from which polymers are made • an ion that does not take part in a chemical reaction • a molecule that contains only carbon and hydrogen atoms • an insoluble compound formed in a precipitation reaction • the number of active molecules in a set volume of solution • ...

CHEMISTRY IN THE HOME CROSSWORD PUZZLE 2025-10-09

CHEMISTRY IN THE HOME CROSSWORD PUZZLE crossword puzzle
Across
  1. starting substances in a chemical reaction.
  2. substance that can damage materials or skin.
  3. number scale from 0 to 14 used to show how acidic or alkaline a substance is.
  4. rain that contains dissolved acidic gases such as sulfur dioxide.
  5. reaction between an acid and a base that produces a salt and water.
Down
  1. solution that contains a small amount of acid or alkali in a lot of water.
  2. dioxide when an acid and carbonate react they form form a salt, water, and
  3. way of showing a reaction using words instead of symbols.
  4. chemical that changes colour to show if something is acidic or alkaline.
  5. new substances formed in a chemical reaction.
  6. pure substance made of only one type of atom.
  7. made of two or more different elements chemically joined together.
  8. substance that has a pH less than 7.
  9. reaction reaction that forms new substances.
  10. that reacts with an acid to make a salt and water.
  11. that dissolves in water Dilute
  12. then smallest part of an element that still has its properties.

17 Clues: that dissolves in water Dilute • substance that has a pH less than 7. • starting substances in a chemical reaction. • substance that can damage materials or skin. • reaction reaction that forms new substances. • new substances formed in a chemical reaction. • pure substance made of only one type of atom. • that reacts with an acid to make a salt and water. • ...

Chemical Reactions 2024-09-09

Chemical Reactions crossword puzzle
Across
  1. smallest part of an element
  2. chemical equation that does not have equal amounts of atoms of each type in both the reactants and products
  3. a change in a substance that does not involve a change in its identity
  4. ending materials in a chemical reaction
  5. a pure substance with only one kind of atom
  6. a starting material in a chemical reaction
  7. substance formed by the chemical combination of 2 or more different elements in definite proportions
  8. a combination of symbols and numbers to represent a substance
  9. a representation of a chemical reaction using symbols to show the relationship between reactants and products
  10. matter is not created or destroyed in any chemical or physical change
Down
  1. a change in matter that produces one or more new substances
  2. small number to the bottom-right of a chemical symbol that shows the number of atoms of that element
  3. a group of atoms bonded together
  4. a system in which matter can enter from or escape to its surroundings
  5. number before an element or compound that shows how many of that element or compound there are
  6. plants use the sun's energy to convert water and carbon dioxide into sugar and oxygen
  7. makes, creates, produces; arrow in a chemical reaction
  8. chemical equation with the same number of atoms of each element on both sides of the equation
  9. a system in which no matter is allowed to enter or leave

19 Clues: smallest part of an element • a group of atoms bonded together • ending materials in a chemical reaction • a starting material in a chemical reaction • a pure substance with only one kind of atom • makes, creates, produces; arrow in a chemical reaction • a system in which no matter is allowed to enter or leave • ...

Chapter 7 Crossword 2023-01-06

Chapter 7 Crossword crossword puzzle
Across
  1. a reaction in which one element is substituted for another element in a compound
  2. a very important and small unit of measurement that chemists use
  3. symbolic representations of chemical reactions in which the reactants and the products are expressed in terms of their respective chemical formulae
  4. a chemical reaction in which less energy is needed to break bonds in the reactants than is released when new bonds form in the products
  5. anychemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron
  6. the mass in grams of 1 mole of the substance
  7. a number placed in front of a formula to balance a chemical equation.
  8. a chemical reaction in which a fuel undergoes oxidation by reacting with an oxidising agent, resulting in the release of energy
Down
  1. Energy stored in the bonds of chemical compounds.
  2. reactions that occur when two different atoms or molecules interact to form a different molecule or compound
  3. reactions in which the reactants absorb heat energy from the surroundings to form products
  4. a substance that is present at the end of a chemical reaction
  5. a substance that takes part in and undergoes change during a reaction
  6. a reaction in which the positive and negative ions of two ionic compounds exchange places to form two new compounds
  7. a reaction in which a compound breaks down into two or more simpler substances.

15 Clues: the mass in grams of 1 mole of the substance • Energy stored in the bonds of chemical compounds. • a substance that is present at the end of a chemical reaction • a very important and small unit of measurement that chemists use • a substance that takes part in and undergoes change during a reaction • ...

Chemical Reactions 2013-11-19

Chemical Reactions crossword puzzle
Across
  1. base indicators / An indicator that changes colour when going from acid to basic solutions.
  2. of Reaction / The aftermath of a reaction.
  3. Reaction / The process of rearanging the molecules or ionic structure.
  4. scale / Is the scale measuring the acidity or alkalinity of a solution.
  5. / A pair of substances that have reacted or are going to.
  6. reaction / A chemical reaction in which an acid and a base interact with the formation of salt.
  7. reaction / A reaction that happens by cause of fire, spark, friction or static.
  8. of conservation of mass / The principle of matter not being created or destroyed in an isolated environment.
  9. / The main ingredient in which other substances are added.
Down
  1. substance / A substance able to corrode or rot apon contact.
  2. reaction / A reaction that is accomanied by heat.
  3. reaction / A chemical reaction accompaied by the absorbtion of heat.
  4. / A liquid with a pH lower than 7.
  5. / Capable of being disolved or liquified.
  6. / Incapable of being disolved or liquified.

15 Clues: / A liquid with a pH lower than 7. • / Capable of being disolved or liquified. • of Reaction / The aftermath of a reaction. • / Incapable of being disolved or liquified. • reaction / A reaction that is accomanied by heat. • / A pair of substances that have reacted or are going to. • / The main ingredient in which other substances are added. • ...

Chemistry Crossword 2015-11-17

Chemistry Crossword crossword puzzle
Across
  1. the amount of mass in a given volume of substance
  2. The purte substances on the periodic table
  3. Number of protons in a nucleus
  4. Invisible negatively charged particle that orbits the neclues of an atom
  5. A reaction that takes place when two or more substances form new substances
  6. A Chemical reaction that absorbs heat energy
  7. The most reactive element
  8. When an element changes from one state to another
  9. The table of Elements
  10. Neutral particle in a nucleus of an atom
  11. Most reactive non metal
  12. An experiment in which is one or more products of a chemical reaction can escape
  13. A Chemical reaction that releases heat energy
  14. Gas, Solid and Liquid
Down
  1. something that resists electricity
  2. Smallest part of a element
  3. A compound made from metal and non-metal
  4. Slow chemical change that occurs when oxygen in the air reacts with metal
  5. Change that results when two or more substances react to create a different substance or substances
  6. The symbol of Oxygen
  7. Change of state from solid to liquid
  8. Change of state from liquid to solid
  9. Water's chemical formula
  10. Combining of pure substance
  11. Vertical column of elements in the periodic table

25 Clues: The symbol of Oxygen • The table of Elements • Gas, Solid and Liquid • Most reactive non metal • Water's chemical formula • The most reactive element • Smallest part of a element • Combining of pure substance • Number of protons in a nucleus • something that resists electricity • Change of state from solid to liquid • Change of state from liquid to solid • ...

Energy, chemical reactions and cellular respiration 2017-09-23

Energy, chemical reactions and cellular respiration crossword puzzle
Across
  1. Oxidation/reduction
  2. Energy derived from the flow of electrons from higher energy shells to lower ones
  3. Refers to the change in one form of energy to another
  4. Result of the intermediate (transition) stage of cellular respiration
  5. adenosine triphosphate
  6. Released by chemical reactions
  7. Inhibitor that doesn't bind the activation site
  8. Factor affecting enzyme reactions
  9. Macromolecule in the liver used to store chemical energy
  10. Kinetic energy is the energy of _________
  11. Alternate pathway to extract energy from pyruvate in the absence of oxygen
  12. Balanced chemical reactions have ____ number of elements on both sides of the reaction
Down
  1. monomeric unit of energy derived from a macromolecule
  2. Reaction type that consumes energy
  3. Pathway that doesn't require oxygen
  4. Energy required to initiate a chemical reaction
  5. Shape of most enzymes
  6. Location a substrate binds an enzyme (2 words)
  7. Energy of electromagnetic waves
  8. Energy generated by creating a concentration gradient
  9. ______ space received the protons pumped by the electron transport chain
  10. Type of enzyme that converts on isomer to another
  11. Reaction type that produces energy
  12. Synthesis
  13. Acid Another name for the Kreb's cycle (2 words)
  14. A catalyst _____ the activation energy

26 Clues: Synthesis • Oxidation/reduction • Shape of most enzymes • adenosine triphosphate • Released by chemical reactions • Energy of electromagnetic waves • Factor affecting enzyme reactions • Reaction type that consumes energy • Reaction type that produces energy • Pathway that doesn't require oxygen • A catalyst _____ the activation energy • Kinetic energy is the energy of _________ • ...

Mission Review 1-3 2022-12-09

Mission Review 1-3 crossword puzzle
Across
  1. Organic compounds with an amino group on
  2. a compound that forms OH- ions in solution
  3. processes that changes one set of chemicals to another
  4. attraction of molecules of the same substance
  5. the three dimensional structure shape of the protein is stabilized by interactions between R-groups
  6. polypeptide chains found in only some proteins
  7. structure sequence of amino acids
  8. end and a carboxyl group on the other end.
Down
  1. structure assocation between two or more
  2. the tendency of water tendency of water to rise in a thin tube
  3. breaking large molecules down into smaller molecules that release energy
  4. chemical reaction that releases energy
  5. a substance on which an enzyme acts during a chemical reaction
  6. the ability to move or change matter
  7. substance that is dissolved in solution
  8. the basic unit of matter
  9. chemical reaction that absorbs energy
  10. atoms of the same elements that differ in number of neutrons they contain
  11. a compound that forms H+ ions in solution
  12. a chemical reaction that builds molecules by losing water molecules
  13. all of the chemical reactions that occur within an organism to maintain life

21 Clues: the basic unit of matter • structure sequence of amino acids • the ability to move or change matter • chemical reaction that absorbs energy • chemical reaction that releases energy • substance that is dissolved in solution • structure assocation between two or more • Organic compounds with an amino group on • a compound that forms H+ ions in solution • ...

bobbiejomachnickichapter13 2016-10-12

bobbiejomachnickichapter13 crossword puzzle
Across
  1. a rapid exothermic oxidation-reduction reaction between a material and molecular oxygen
  2. a polyatomic ion made by removing a proton (hydrogen ion) from a water molecule
  3. a polyatomic ion made by adding a proton (hydrogen ion) to a water molecule
  4. the process by which a reactant loses one or more electrons
  5. the reacting substances in a chemical reaction
Down
  1. the new materials formed in a chemical reaction
  2. description of a substance that can behave as either an acid or a base
  3. a reaction between a acid and a base
  4. description of a chemical reaction in which there is a net release of energy
  5. a substance that accepts hydrogen ions
  6. description of a chemical reaction in which there is a net absorption of energy
  7. a measure of the acidity of a solution equal to the negative logarithm of the hydronium ion concentration
  8. the deterioration of a metal, typically caused by atmospheric oxygen
  9. an ionic compound commonly formed from the reaction between an acid and a base
  10. the process by which a reactant gains one or more electrons
  11. a substance that donates hydrogen ions

16 Clues: a reaction between a acid and a base • a substance that accepts hydrogen ions • a substance that donates hydrogen ions • the reacting substances in a chemical reaction • the new materials formed in a chemical reaction • the process by which a reactant loses one or more electrons • the process by which a reactant gains one or more electrons • ...

Chemistry 2017-09-11

Chemistry crossword puzzle
Across
  1. acid
  2. The smallest building block
  3. no charge
  4. speeds up a chemical reaction
  5. The more H+ ions
  6. Reaction rearranging atoms
  7. negative
Down
  1. It positive
  2. after a chemical reaction
  3. beginning substances
  4. bonded together
  5. basic

12 Clues: acid • basic • negative • no charge • It positive • bonded together • The more H+ ions • beginning substances • after a chemical reaction • The smallest building block • speeds up a chemical reaction • Reaction rearranging atoms

Chemistry Crossword Puzzle 2022-12-08

Chemistry Crossword Puzzle crossword puzzle
Across
  1. are groups that run up and down
  2. a particle with a negative charge found in all cells surrounding the protons and neutrons.
  3. a particle of matter that defines a chemical element
  4. happening/acting suddenly.
  5. a particular kind of matter
  6. elements on the right side of the periodic table
  7. a table of the chemical elements arranged in order of atomic number
  8. elements on the left side of the periodic table
  9. a change in matter that doesn't change the chemical.
  10. chemical/reaction on the periodic table
Down
  1. energy can neither be created nor destroyed.
  2. the brain/main part of a cell.
  3. characteristics that show us the difference of materials
  4. a change of chemical into another/one or more substance is formed.
  5. a representation of a chemical reaction using symbols of the elements
  6. the structure and properties of ______
  7. the electrons located at the outermost shell of an atom
  8. a substance that undergoes change during a reaction.
  9. periods that go left to right

19 Clues: happening/acting suddenly. • a particular kind of matter • periods that go left to right • the brain/main part of a cell. • are groups that run up and down • the structure and properties of ______ • chemical/reaction on the periodic table • energy can neither be created nor destroyed. • elements on the left side of the periodic table • ...

Types of chemical reactions by GOVINDKRISHNA 10N 2024-04-30

Types of chemical reactions by GOVINDKRISHNA 10N crossword puzzle
Across
  1. reaction in which the activation energy for decomposition is provided in the form of electrical energy
  2. reaction in which a single product is formed from two or more reactants
  3. substance Lossing oxygen
  4. chemical reactions in which the reactants absorb heat energy from the surroundings to form products.
  5. a chemical reaction in which a chemical compound is broken down by photons.
  6. is a chemical reaction that releases energy by light or heat
  7. also called as quick lime
  8. reaction in which a single reactant breaks down to give simpler products
Down
  1. a reaction in which a compound breaks down into two or more simpler substances
  2. used for white washing
  3. involve the breaking and making bonds between atoms to produce new substances.
  4. is the one wherein the atom or a set of atoms is displaced by another atom in a molecule
  5. is a chemical decomposition caused by heat.
  6. type of reaction that occurs when the cations and anions switch between two reactants to form new products
  7. substance gaining oxygen

15 Clues: used for white washing • substance Lossing oxygen • substance gaining oxygen • also called as quick lime • is a chemical decomposition caused by heat. • is a chemical reaction that releases energy by light or heat • reaction in which a single product is formed from two or more reactants • reaction in which a single reactant breaks down to give simpler products • ...

Chapter 11 Vocab 2015-02-06

Chapter 11 Vocab crossword puzzle
Across
  1. A chemical equation in which mass is conserved
  2. A chemical change in which a single compound is broken down into two or more simpler products
  3. An expression representing a chemical reaction
  4. A small whole number that appears in front of a formula in a balanced chemical equation
  5. A chemical equation that does not indicate the relative amounts of reactants and products
  6. A chemical change that involves an exchange of positive ions between two compounds
  7. An ion that is not directly involved in a chemical reaction; an ion that does not change oxidation number or composition during a reaction
Down
  1. A chemical change in which an element or a compound reacts with oxygen
  2. A chemical change in which one element replaces a second element in a compound
  3. An equation for a reaction in solution showing only those particles that are directly involved in the chemical change
  4. A substance that increases the rate of reaction by lowering the activation-energy barrier
  5. An equation that shows dissolved ionic compounds as dissociated free ions
  6. A chemical change in which two or more substances react to form a single new substance
  7. A list of elements in order of decreasing activity

14 Clues: A chemical equation in which mass is conserved • An expression representing a chemical reaction • A list of elements in order of decreasing activity • A chemical change in which an element or a compound reacts with oxygen • An equation that shows dissolved ionic compounds as dissociated free ions • ...

Chemical Reactions 2025-01-22

Chemical Reactions crossword puzzle
Across
  1. The number placed in front of a chemical formula to balance a chemical equation.
  2. A change in matter where a new substance is formed, often involving energy release or absorption.
  3. The substance that is formed in a chemical reaction.
  4. The law stating that matter cannot be created or destroyed in a chemical reaction.
  5. The number of molecules or atoms involved in a reaction, shown in a chemical equation.
Down
  1. A type of reaction in which one element replaces another in a compound.
  2. A reaction where a compound breaks down into simpler substances.
  3. A chemical reaction that releases heat.
  4. A process by which energy is absorbed in a reaction.
  5. A type of reaction where two or more substances combine to form a new compound.
  6. The part of a reaction that is present before the chemical change.

11 Clues: A chemical reaction that releases heat. • A process by which energy is absorbed in a reaction. • The substance that is formed in a chemical reaction. • A reaction where a compound breaks down into simpler substances. • The part of a reaction that is present before the chemical change. • A type of reaction in which one element replaces another in a compound. • ...

PSCI Terms 2023-01-13

PSCI Terms crossword puzzle
Across
  1. a bond formed when atoms share one or more pairs of electrons
  2. negatively charged subatimic particle
  3. good conductors of heat and electricity
  4. a chemical reaction in which energy is released to the surroundings as heat
  5. a substance or molecule that participates in a chemical reaction
  6. an atom with same number of protons but different number of neutrons
  7. family group 8A
  8. the arrangement of atoms in a substance
  9. family group 7A
  10. a chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of atoms
  11. a substance that forms in a chemical reaction
  12. equal to the number of protons
  13. the attractive force that holds atoms or ions together
Down
  1. brittle when struck
  2. electrons in the outer most energy level
  3. family group 2A
  4. greek prefix for 10
  5. positively charged subatomic particle
  6. an atom who has gained or lost an electron
  7. greek prefix for 2
  8. greek prefix for 1
  9. a chemical reaction that requires energy input
  10. an atom's center
  11. has characteristics of both metals and non metals
  12. family group 1A
  13. the attractive force between oppositely charged ions

26 Clues: family group 2A • family group 8A • family group 1A • family group 7A • an atom's center • greek prefix for 2 • greek prefix for 1 • brittle when struck • greek prefix for 10 • equal to the number of protons • negatively charged subatimic particle • positively charged subatomic particle • good conductors of heat and electricity • the arrangement of atoms in a substance • ...

U5S1 KINETICS & HESS'S LAW Extra Credit 2022-02-03

U5S1 KINETICS & HESS'S LAW Extra Credit crossword puzzle
Across
  1. energy the minimum amount of energy that must be provided for compounds to result in a chemical reaction. the change in enthalpy associated with a particular chemical process any chemical substance produced during the conversion of some reactant to a product
  2. a reaction in which the conversion of reactants to products and the conversion of products to reactants occur simultaneously
  3. the branch of physical chemistry that is concerned with understanding the rates of chemical reactions.
  4. The reaction rate or rate of reaction is the speed at which a chemical reaction takes place, defined as proportional to the increase in the concentration of a product per unit time and to the decrease in the concentration of a reactant per unit time.
  5. reaction in which products are produced from reactants and it goes from left to right in a reversible reaction
Down
  1. used to relate the free energy changes that occur during the progress of chemical processes to the rate and equilibrium constants of the process
  2. any chemical reaction that absorbs heat from its environment
  3. the movement of one or more components of a mixture to improve contact
  4. a process or reaction that releases energy from the system to its surroundings, usually in the form of heat, but also in a form of light, electricity, or sound
  5. he average kinetic energy of all the atoms or molecules of that substance
  6. he energy change in an overall chemical reaction is equal to the sum of the energy changes in the individual reactions comprising it
  7. any substance that increases the rate of a reaction without itself being consumed
  8. a substance which slows downprevents a particular chemical reaction or other process or which reduces the activity of a particular reactant, catalyst, or enzyme

13 Clues: any chemical reaction that absorbs heat from its environment • the movement of one or more components of a mixture to improve contact • he average kinetic energy of all the atoms or molecules of that substance • any substance that increases the rate of a reaction without itself being consumed • ...

Briggs-Rauscher Oscillating Clock 2024-05-20

Briggs-Rauscher Oscillating Clock crossword puzzle
Across
  1. A process that uses electricity to drive a non-spontaneous chemical reaction.
  2. A conductor through which electricity enters or leaves an object, substance, or region.
  3. The electrode where oxidation occurs.
  4. The loss of electrons.
  5. Another name for a galvanic cell.
Down
  1. Either the oxidation or reduction reaction component of a redox reaction.
  2. A substance that produces an electrically conducting solution when dissolved.
  3. The gradual destruction of materials (usually metals) by chemical reaction with their environment.
  4. The gain of electrons.
  5. A type of cell that generates electrical energy from spontaneous redox reactions.
  6. A substance that gains electrons and is reduced in a chemical reaction.
  7. A type of chemical reaction that involves a transfer of electrons.
  8. State A number that represents the total number of electrons that an atom either gains or loses to form a chemical bond.
  9. The electrode where reduction occurs.

14 Clues: The gain of electrons. • The loss of electrons. • Another name for a galvanic cell. • The electrode where oxidation occurs. • The electrode where reduction occurs. • A type of chemical reaction that involves a transfer of electrons. • A substance that gains electrons and is reduced in a chemical reaction. • ...

Chemistry Chapter 11 Vocab 2021-12-06

Chemistry Chapter 11 Vocab crossword puzzle
Across
  1. a list of elements in order of decreasing activity; the activity series of halogens
  2. a chemical change that involves an exchange of positive ions between two compounds
  3. a chemical change in which two or more substance react to form a single new substance; also called a synthesis reaction
  4. a sustance that increases the rate of reaction by lowering the activation-energy barrier; the catalyst is not used up in the reaction
  5. an expression representing a chemical reaction
  6. a chemical change in which a single compound is broken down into two or more simpler products
Down
  1. a chemical change in which an element or a compound reacts with oxygen, often producing energy in the form of heat and light
  2. a chemical equation that does not indicate the relative amounts of reaactants and products
  3. an equation for a reaction in solution showing only those particles that are directly involved in the chemical change
  4. a chemical change in which one element replaces a second element in a compound; also called a displacement reaction
  5. an ion that is not directly involved in a chemical reaction; an ion that does not change oxidation number or composition during a reaction
  6. a small whole number that appears in front of a formula in a balanced chemical equation
  7. an equation that shows dissolved ionic compounds as dissociated free ions

13 Clues: an expression representing a chemical reaction • an equation that shows dissolved ionic compounds as dissociated free ions • a chemical change that involves an exchange of positive ions between two compounds • a list of elements in order of decreasing activity; the activity series of halogens • ...

Physical Science Final Exam 2016-05-25

Physical Science Final Exam crossword puzzle
Across
  1. Substance containing a hydroxyl group
  2. It is dissolved
  3. Reaction between oxygen and a fuel
  4. Force between two surfaces
  5. A polymer of simple sugars
  6. Unequal forces acting on an object
  7. A solid formed in solution
  8. An object in orbit
  9. A chemical reaction where a compound breaks down
  10. Amount of work done in a unit of time
  11. Rise over run
  12. Energy needed to start a chemical reaction
  13. SI unit of length
  14. A solution in which no more solute dissolves
  15. A force that pulls objects down
  16. The amount of substance in a given volume
  17. A unit of force
  18. A devise that makes work easier
  19. A chemical reaction where elements in compounds switch place
  20. A substance that produces hydrogen ions in water
  21. Repeating unit in a polymer
  22. Changing speed or direction
  23. A property that describes ability to change
  24. It does the dissolving
  25. A chemical reaction where a complex substance is formed
  26. New substance formed
Down
  1. Carboxyl group
  2. Resistance to a change in motion
  3. Substance containing a carboxyl group
  4. A unit of power
  5. Hydroxyl group
  6. A reaction between an acid and a base
  7. A measure of how much solute can dissolve at a given temperature
  8. contain only hydrogen and carbon
  9. Mass times velocity
  10. Type of fluid friction
  11. Combination of forces acting on an object
  12. Substance in the beginning of a reaction.
  13. Absorbs heat
  14. A substance that produces hydroxide ions in water
  15. The force of gravity on an object
  16. Releases heat
  17. A well mixed mixture
  18. DNA and RNA
  19. A number in front of a chemical formula
  20. Distance divided by time interval
  21. A property that can be observed without changing the substance
  22. A unit of energy
  23. Speed and direction
  24. A polymer of amino acids
  25. Anything that has mass and volume
  26. Force times distance
  27. A scale which measures acidity

53 Clues: DNA and RNA • Absorbs heat • Rise over run • Releases heat • Carboxyl group • Hydroxyl group • It is dissolved • A unit of power • A unit of force • A unit of energy • SI unit of length • An object in orbit • Mass times velocity • Speed and direction • A well mixed mixture • Force times distance • New substance formed • Type of fluid friction • It does the dissolving • A polymer of amino acids • ...

Voc 6.1.3 Chemical Changes 2025-09-26

Voc 6.1.3 Chemical Changes crossword puzzle
Across
  1. Chemical energy converted to electrical energy
  2. easy to set on fire
  3. 2 or more substances combine and NO new substance is formed
  4. a solid that forms when two liquids are combined
  5. forms when water and oxygen come into contact with metals
  6. food browning during toasting, sauteing, caramelizing, frying,
  7. fire is ALWAYS a chemical reaction; ashes
  8. proteins that start a chemical reaction
  9. 2 or more substances combine and a new substance is formed
Down
  1. accurate; supports the claim that was made in an experiment
  2. a burst of light; an explosion; eruption of fire
  3. substance gets hotter or colder or both
  4. foaming, fizzing, frothing, bubbles
  5. Salt
  6. a substance that can destroy another substance by contact
  7. rusting, tarnishing, food browning
  8. after two reactants are combined
  9. a substance that goes through a chemical change during a chemical reaction

18 Clues: Salt • easy to set on fire • after two reactants are combined • rusting, tarnishing, food browning • foaming, fizzing, frothing, bubbles • substance gets hotter or colder or both • proteins that start a chemical reaction • fire is ALWAYS a chemical reaction; ashes • Chemical energy converted to electrical energy • a burst of light; an explosion; eruption of fire • ...

Organic Chemistry 2022-01-25

Organic Chemistry crossword puzzle
Across
  1. hydrocarbons that have double or triple covalent bonds between adjacent carbon atoms
  2. a chemical formula that identifies the location of chemical bonds between the atoms of a molecule.
  3. the process of breaking a covalent bond where one previously bonded species takes both original bonding electrons from the other species.
  4. a two-stage reaction process of an addition reaction followed by an elimination reaction
  5. an atom or a molecule that in chemical reaction seeks an atom or molecule containing an electron pair available for bonding
  6. a chemical formula of a molecular compound that shows the kinds and numbers of atoms present in a molecule of the compound
Down
  1. the simplest whole number ratio of atoms present in a compound
  2. relating to or denoting organic compounds in which carbon atoms form open chains (as in the alkanes), not aromatic rings.
  3. chemical bond dissociation of a molecular bond by a process where each of the fragments (an atom or molecule) retains one of the originally bonded electrons.
  4. a substance that takes part in and undergoes change during a reaction.
  5. a chemical reaction during which one functional group in a chemical compound is replaced by another functional group.
  6. has only single bonds between carbon atoms
  7. a reaction in which one molecule combines with another to form a larger molecule with no other products.
  8. a chemical species that forms bonds with electrophiles by donating an electron pair.
  9. an aromatic hydrocarbon (such as benzene or naphthalene)

15 Clues: has only single bonds between carbon atoms • an aromatic hydrocarbon (such as benzene or naphthalene) • the simplest whole number ratio of atoms present in a compound • a substance that takes part in and undergoes change during a reaction. • hydrocarbons that have double or triple covalent bonds between adjacent carbon atoms • ...

Organic Chemistry 2022-01-25

Organic Chemistry crossword puzzle
Across
  1. hydrocarbons that have double or triple covalent bonds between adjacent carbon atoms
  2. a chemical formula that identifies the location of chemical bonds between the atoms of a molecule.
  3. the process of breaking a covalent bond where one previously bonded species takes both original bonding electrons from the other species.
  4. a two-stage reaction process of an addition reaction followed by an elimination reaction
  5. an atom or a molecule that in chemical reaction seeks an atom or molecule containing an electron pair available for bonding
  6. a chemical formula of a molecular compound that shows the kinds and numbers of atoms present in a molecule of the compound
Down
  1. the simplest whole number ratio of atoms present in a compound
  2. relating to or denoting organic compounds in which carbon atoms form open chains (as in the alkanes), not aromatic rings.
  3. chemical bond dissociation of a molecular bond by a process where each of the fragments (an atom or molecule) retains one of the originally bonded electrons.
  4. a substance that takes part in and undergoes change during a reaction.
  5. a chemical reaction during which one functional group in a chemical compound is replaced by another functional group.
  6. has only single bonds between carbon atoms
  7. a reaction in which one molecule combines with another to form a larger molecule with no other products.
  8. a chemical species that forms bonds with electrophiles by donating an electron pair.
  9. an aromatic hydrocarbon (such as benzene or naphthalene)

15 Clues: has only single bonds between carbon atoms • an aromatic hydrocarbon (such as benzene or naphthalene) • the simplest whole number ratio of atoms present in a compound • a substance that takes part in and undergoes change during a reaction. • hydrocarbons that have double or triple covalent bonds between adjacent carbon atoms • ...

Chemical Changes Gizmo Vocabulary Review 2020-09-27

Chemical Changes Gizmo Vocabulary Review crossword puzzle
Across
  1. The total mass of the products and the total mass of the reactants in a chemical reaction are ___ values.
  2. A number representing the number of atoms of an element in one molecule of a substance.
  3. A substance that changes color when in contact with an acid or base.
  4. An endothermic reaction causes the temperature of a system to ___ from its starting temperature.
  5. Synthesis chemical reactions result in formation of a ___ product from multiple reactants.
  6. A process that causes the system to release heat energy to the surroundings.
  7. No ___ are created or destroyed when a chemical reaction occurs.
Down
  1. A substance that results from (comes out of) a chemical reaction.
  2. Chemical changes result in the formation of new ___.
  3. The Law of the Conservation of matter states that the total amount of matter in a ___ system remains constant.
  4. An exothermic reaction causes the temperature of a system to ___ from its starting temperature.
  5. A process that causes the system to absorb heat energy from the surroundings.
  6. A ___ change is a change that affects the shape or phase of a substance but does not produce new substances.
  7. ___ means to pass into solution.
  8. When a chemical change occurs, ___ holding atoms together are broken and new ___ are formed.
  9. A substance that takes part in (goes in to) and is changed by a chemical reaction.

16 Clues: ___ means to pass into solution. • Chemical changes result in the formation of new ___. • No ___ are created or destroyed when a chemical reaction occurs. • A substance that results from (comes out of) a chemical reaction. • A substance that changes color when in contact with an acid or base. • ...

Changes In Matter Vocabulary 2025-05-15

Changes In Matter Vocabulary crossword puzzle
Across
  1. substance,two or more elements
  2. absorb,heat
  3. study,properties
  4. end,reaction
  5. matter,amount
  6. transfer,energy
  7. space taken,
  8. everything,takes space
  9. force,together
Down
  1. two or more,together
  2. non chemical,combination
  3. structurally same
  4. kinetic energy, average
  5. ability,work
  6. starting materials,chemical
  7. speeds, reaction
  8. unit,smallest
  9. release,heat

18 Clues: absorb,heat • ability,work • end,reaction • space taken, • release,heat • matter,amount • unit,smallest • force,together • transfer,energy • study,properties • speeds, reaction • structurally same • two or more,together • everything,takes space • kinetic energy, average • non chemical,combination • starting materials,chemical • substance,two or more elements

Chemistry Crossword 2022-08-29

Chemistry Crossword crossword puzzle
Across
  1. When one element replaces another in a compound or when two elements in different compounds trade places
  2. A substance made of two or more elements chemically combined in a specific ratio or proportion
  3. A well mixed mixture
  4. The different materials you have after a chemical reaction takes place
  5. The process that breaks down compounds into simpler products
  6. A shorter, easier way to show chemical reactions using symbols instead of words.
  7. The study of the properties of matter and how matter changes
  8. A reaction that absorbs energy making the substances feel cooler
  9. A change in matter that forms one or more new substances
  10. A reaction the releases energy in the form of heat
  11. The materials you have at the beginning of a chemical reaction
Down
  1. A particle made of two or more atoms bonded together
  2. Anything that has mass and takes up space
  3. A solid that forms from solution during a chemical reaction
  4. A substance that consists of two or more pure substances that are in the same place but not chemically combined
  5. A combination of symbols that represent the elements in a compound
  6. When two or more substances combine to make a more complex substance
  7. The force that holds atoms together
  8. The smallest stable unit of matter
  9. A substance that cannot be broken down into any other substances by chemical or physical means

20 Clues: A well mixed mixture • The smallest stable unit of matter • The force that holds atoms together • Anything that has mass and takes up space • A reaction the releases energy in the form of heat • A particle made of two or more atoms bonded together • A change in matter that forms one or more new substances • A solid that forms from solution during a chemical reaction • ...

Year 6 - Chemistry Key Terms 2025-09-11

Year 6 - Chemistry Key Terms crossword puzzle
Across
  1. A common irreversible chemical change that happens in the kitchen.
  2. Heating a liquid until it turns into gas with bubbles.
  3. A small glass tube used to hold and mix small amounts of substances.
  4. A step-by-step plan for doing an experiment.
  5. A change where the substance stays the same, even if its form changes.
  6. An indicator of a chemical change when a substance becomes a new colour.
  7. Bubbles form when this happens during a reaction.
  8. When something gets hotter or colder during a reaction.
  9. The scientific word for burning, like fireworks or candles.
  10. Used to accurately measure the volume of liquids.
  11. When a solid turns into a liquid.
  12. A change that cannot be undone, like cooking an egg.
  13. A solid that forms during a chemical reaction in a solution.
Down
  1. Combining two or more substances without a chemical reaction.
  2. A change that creates a new substance with different properties.
  3. A container used in science experiments to hold liquids.
  4. Hot water vapour seen when boiling water.
  5. When a substance mixes completely into a liquid, like sugar in water.
  6. A test to see how something reacts or behaves.
  7. A change that can be undone, like melting and freezing.
  8. These form when gas is made in a chemical reaction.
  9. A labelled drawing that shows what happened in an experiment.

22 Clues: When a solid turns into a liquid. • Hot water vapour seen when boiling water. • A step-by-step plan for doing an experiment. • A test to see how something reacts or behaves. • Bubbles form when this happens during a reaction. • Used to accurately measure the volume of liquids. • These form when gas is made in a chemical reaction. • ...

Chapter 5 2022-05-04

Chapter 5 crossword puzzle
Across
  1. the action or process of replacing someone or something
  2. a numerical or constant quantity placed before and multiplying the variable
  3. a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction
  4. a cause of a particular action or event.
  5. the production of chemical compounds by reaction from simpler materials
  6. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change
  7. occur when a substance combines with another to form a new substance
  8. a quantity obtained by multiplying quantities together, or from an analogous algebraic operation.
  9. can neither be added nor be removed
Down
  1. usually release heat and entail the replacement of weak bonds with stronger ones.
  2. is the symbolic representation of a chemical reaction in the form of symbols and formulae
  3. a change to a sample of matter in which some properties of the material change, but the identity of the matter does not
  4. the state or process of rotting
  5. a substance that takes part in and undergoes change during a reaction.
  6. the action or power of focusing one's attention or mental effort
  7. usually release heat and entail the replacement of weak bonds with stronger ones.
  8. the minimum quantity of energy which the reacting species must possess in order to undergo a specified reaction
  9. a substance which slows down or prevents a particular chemical reaction or other process or which reduces the activity of a particular reactant, catalyst, or enzyme.

18 Clues: the state or process of rotting • can neither be added nor be removed • a cause of a particular action or event. • the action or process of replacing someone or something • the action or power of focusing one's attention or mental effort • occur when a substance combines with another to form a new substance • ...

Nick Pelland chapter 13 crossword 2017-10-04

Nick Pelland chapter 13 crossword crossword puzzle
Across
  1. The deterioration of a metal, typically caused by atmospheric oxygen.
  2. a chemical reaction increases or the concentration of reactants decreases.
  3. which is the same as the amount of energy released when the
  4. itself being consumed by the reaction.
  5. A substance that accepts hydrogen ions.
  6. One half of an oxidation–reduction reaction, represented
  7. Any substance that increases the rate of a chemical reaction
  8. A reaction between an acid and a base.
  9. Description of a chemical reaction in which there is a net
  10. an equation showing electrons as either reactants or products.
Down
  1. atoms are brought together into a bond.
  2. The process by which a reactant loses one or more electrons.
  3. of energy.
  4. The amount of energy required to pull two bonded atoms
  5. A measure of how quickly the concentration of products
  6. A rapid exothermic oxidation–reduction reaction between a material and molecular oxygen.

16 Clues: of energy. • itself being consumed by the reaction. • A reaction between an acid and a base. • atoms are brought together into a bond. • A substance that accepts hydrogen ions. • The amount of energy required to pull two bonded atoms • A measure of how quickly the concentration of products • One half of an oxidation–reduction reaction, represented • ...

Jesse Hernandez 2017-02-27

Jesse Hernandez crossword puzzle
Across
  1. he action or fact of making a specified thing smaller or less in amount, degree, or size.
  2. combination or composition, in particular.
  3. of or containing water, typically as a solvent or medium.
  4. cause (an event or situation, typically one that is bad or undesirable) to happen suddenly, unexpectedly, or prematurely.
  5. chemical compound that contains exactly two different elements. [1] Examples of binary ionic compounds include calcium chloride (CaCl2), sodium fluoride (NaF), and magnesium oxide (MgO), whilst examples of binary covalent compounds include water (H2O), and sulfur hexafluoride (SF6)
  6. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  7. reaction or metathesis, is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products
  8. chemical decomposition produced by passing an electric current through a liquid or solution containing ions.
  9. as a molecular ion, is a charged chemical species (ion) composed of two or more atoms covalently bonded or of a metal complex that can be considered to be acting as a single unit.
Down
  1. the process of burning something.
  2. the process or result of oxidizing or being oxidized.
  3. a substance that takes part in and undergoes change during a reaction.
  4. 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-hand side.
  5. reaction, is a type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound.
  6. a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g., 4 in 4x y).
  7. consisting of two atoms.
  8. produce or provide (a natural, agricultural, or industrial product).
  9. the state or process of rotting; decay.
  10. an article or substance that is manufactured or refined for sale.

19 Clues: consisting of two atoms. • the process of burning something. • the state or process of rotting; decay. • combination or composition, in particular. • the process or result of oxidizing or being oxidized. • of or containing water, typically as a solvent or medium. • an article or substance that is manufactured or refined for sale. • ...

Chemical Reactions and Equations - Neil 2024-05-04

Chemical Reactions and Equations - Neil crossword puzzle
Across
  1. Name given for the corrosion of Iron
  2. The new substance formed by one or two reactants
  3. Name given for the corrosion of Copper and Silver
  4. Colour of residue of Copper Oxide
  5. The most reactive metal in the reactivity series
  6. Name given for the sign to show the presence of heat
  7. A substance that takes part and undergoes in a chemical reaction
  8. A chemical reaction in which a substance loses electrons
  9. A chemical reaction when two compounds exchange ions to form new compounds
Down
  1. A chemical reaction in which a substance gains electrons
  2. Colour of fumes formed by Nitrogen Dioxide when heated
  3. Full form of (aq)
  4. Process in which a layer of zinc is coated on steel or Iron
  5. A decomposition reaction which takes place in the presence of light
  6. Colour of Copper Sulphate
  7. The oxidation of fats and oils

16 Clues: Full form of (aq) • Colour of Copper Sulphate • The oxidation of fats and oils • Colour of residue of Copper Oxide • Name given for the corrosion of Iron • The new substance formed by one or two reactants • The most reactive metal in the reactivity series • Name given for the corrosion of Copper and Silver • Name given for the sign to show the presence of heat • ...

physical and chemical change 2025-07-08

physical and chemical change crossword puzzle
Across
  1. – Combustion, a common chemical change.
  2. – Rapid chemical reaction releasing energy.
  3. – Example of chemical change in food (e.g., milk).
  4. – Solid to liquid transition.
  5. – Process where substances change into new substances.
  6. – Gas to liquid transition.
  7. – Liquid turning into gas.
Down
  1. – Liquid to gas transition.
  2. – Solid formed from a liquid chemical reaction.
  3. – Reaction with oxygen (e.g., rusting of iron).
  4. – Breaking an object physically without altering its chemical structure.
  5. – Liquid to solid transition.

12 Clues: – Liquid turning into gas. • – Liquid to gas transition. • – Gas to liquid transition. • – Liquid to solid transition. • – Solid to liquid transition. • – Combustion, a common chemical change. • – Rapid chemical reaction releasing energy. • – Solid formed from a liquid chemical reaction. • – Reaction with oxygen (e.g., rusting of iron). • ...

chemistry crossword 2017-11-16

chemistry crossword crossword puzzle
Across
  1. invisible negatively charged particle that orbits the nucleus of an atom
  2. 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
  3. an experiment in which all reactants and all products of a chemical reaction are accounted for
  4. pure substance that cannot be broken down into other substances; substances made up of only one type of atom
  5. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  6. 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
  7. combination of symbols that represent a compound; the formula identifies the elements in the compound and the amount of each element
  8. their reactivity is not as strong as that of the alkali metals
  9. description of how a substance interacts with other substances, such as acids;chemical properties are observable only when a chemical change occurs
  10. slow chemical change that occurs when oxygen in the air reacts with a metal
  11. principle that matter is not created or destroyed in a chemical reaction; the mass of the products always equals the mass of the reactants
  12. catalyst involved in a chemical reactions in living things
  13. change of state from a liquid to a gas
  14. chemical reaction that absorbs energy
  15. change of state from a gas to a solid
  16. a reaction that takes place when two or more substances react to form new substances
  17. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
Down
  1. change of state from a gas to a liquid
  2. number of protons in the nucleus of one atom of an element
  3. [in chemistry] vertical column of elements in a periodic table; elements in a family all have similar chemical properties; also called a group
  4. the most reactive of the metals
  5. 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
  6. amount of mass in a given volume of a substance
  7. chemical reaction that takes place in cells; food[sugar] reacts with oxygen to produce energy,water, and carbon dioxide
  8. a solution in which the water is the solvent
  9. chemical combination of two or more elements in a specific ratio
  10. group 17 elements in the periodic table; the most reactive non-metals
  11. substance that helps a chemical reaction to proceed more quickly

28 Clues: the most reactive of the metals • chemical reaction that absorbs energy • change of state from a gas to a solid • change of state from a gas to a liquid • change of state from a liquid to a gas • a solution in which the water is the solvent • amount of mass in a given volume of a substance • number of protons in the nucleus of one atom of an element • ...

bio unit 2 2023-10-02

bio unit 2 crossword puzzle
Across
  1. the first step of cellular respiration
  2. the gas sphere
  3. the site of cellular respiration when oxygen is present
  4. the sight of photosynthesis
  5. the second step of aerobic cellular respiratio
  6. when oxygen isn't present
  7. adiosine diphospate
  8. the living sphere
  9. the site of fermentation
  10. the process of turning light into glucose
  11. the end result of a chemical reaction
Down
  1. water sphere
  2. the second step of anarobic cellular respiration
  3. the things that are used for a chemical reaction
  4. the chemical name for glucose
  5. when oxygen is present
  6. what causes the color of the cloroplasts
  7. the process of breaking down glucose into atp
  8. the back bone of life
  9. the first step of photosynthesis
  10. the second step of photosynthesis
  11. the last step of cellular respiration that creates a lit of atp
  12. the sphere of rock and soil
  13. adiosine triphospate

24 Clues: water sphere • the gas sphere • the living sphere • adiosine diphospate • adiosine triphospate • the back bone of life • when oxygen is present • the site of fermentation • when oxygen isn't present • the sight of photosynthesis • the sphere of rock and soil • the chemical name for glucose • the first step of photosynthesis • the second step of photosynthesis • ...

Neutralisation 2026-03-10

Neutralisation crossword puzzle
Across
  1. pH14
  2. pH13
  3. Strongest colour of an acid
  4. pH1
  5. pH0
  6. pH4
  7. Shows colour to determine pH number
  8. Neutral
  9. a process where substances interact and change into new substances
  10. Chemical term for baking soda
  11. pH11
  12. A chemical reaction where an acid and an alkali mix together to form a substance with a neutral pH number
  13. a compound formed when an acid reacts with an alkali during neutralisation
Down
  1. A symbolic way of showing a chemical reaction using formulas
  2. pH9
  3. A tool to check if a liquid or gas is acidic or alkaline
  4. pH3
  5. Juice What’s stronger lemon juice or apple juice
  6. pH6
  7. one of the products formed during a neutralisation reaction
  8. When something is equal or stable
  9. Strongest colour of an alkali
  10. To combine substances together
  11. pH12
  12. pH 0-6
  13. pH5
  14. pH2
  15. pH 8-14
  16. pH10
  17. pH8

30 Clues: pH9 • pH1 • pH3 • pH6 • pH0 • pH4 • pH5 • pH2 • pH8 • pH14 • pH13 • pH12 • pH10 • pH11 • pH 0-6 • Neutral • pH 8-14 • Strongest colour of an acid • Strongest colour of an alkali • Chemical term for baking soda • To combine substances together • When something is equal or stable • Shows colour to determine pH number • Juice What’s stronger lemon juice or apple juice • ...

Chemical Reactions 2023-10-07

Chemical Reactions crossword puzzle
Across
  1. Chemical reaction where a hydrocarbon reacts with oxygen to produce carbon dioxide and water
  2. Chemical reaction where an element replaces another element in a compound
  3. Chemical reaction where two compounds react to create two new compounds
Down
  1. List of elements in order of reactivity
  2. Chemical reaction where two or more substances join to make one substance
  3. Chemical at the beginning of a reaction
  4. Chemical reaction where once substance breaks down into two or more substances
  5. Chemical produced at the end of the reaction
  6. Chemical equation that follows the law of conservation of mass
  7. Equation that shows the chemicals reacting during a chemical reaction

10 Clues: List of elements in order of reactivity • Chemical at the beginning of a reaction • Chemical produced at the end of the reaction • Chemical equation that follows the law of conservation of mass • Equation that shows the chemicals reacting during a chemical reaction • Chemical reaction where two compounds react to create two new compounds • ...

CHEMICAL AND PHYSICAL CHANGES OF SUBSTANCE 2025-12-03

CHEMICAL AND PHYSICAL CHANGES OF SUBSTANCE crossword puzzle
Across
  1. A chemical reaction where a substance gains oxygen. Rusting is a slow form of oxidation.
  2. The new substances formed in a chemical reaction.
  3. (Short for Conservation of Mass) The principle that mass is not created or destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.
  4. A type of change that does not create a new substance (e.g., change of state, dissolving). It is usually reversible.
  5. A special type of mixture where one substance (the solute) is dissolved in another (the solvent), like salt in water.
  6. Two or more substances that are not chemically combined and can be separated by physical methods.
  7. A process where substances interact and change into new substances.
  8. A characteristic used to describe or identify a substance (e.g., colour, melting point, reactivity).
  9. A type of change where new substances with different properties are formed. It is usually irreversible.
  10. The starting substances in a chemical reaction.
Down
  1. A change that cannot be easily undone to get the original materials back (a key feature of most chemical changes).
  2. A chemical reaction where a substance reacts rapidly with oxygen, releasing heat and light (burning).
  3. A change that can be undone to get the original materials back (a key feature of most physical changes).
  4. A solid that forms and settles out of a liquid during a chemical reaction.
  5. A physical separation method used to separate an insoluble solid from a liquid.

15 Clues: The starting substances in a chemical reaction. • The new substances formed in a chemical reaction. • A process where substances interact and change into new substances. • A solid that forms and settles out of a liquid during a chemical reaction. • A physical separation method used to separate an insoluble solid from a liquid. • ...

chem vocab 2022-06-15

chem vocab crossword puzzle
Across
  1. Amount of product that is actually obtained during the experiment
  2. 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. a conversion factor between compounds in a chemical reaction, that is derived from the coefficients of the compounds in a balanced equation
  4. 6.02x10^23
  5. limits the amount of substance that can be made
  6. the process of simplifying a single chemical entity into two or more fragments
  7. the process by which one or more chemical reactions are performed with the aim of converting a reactant or starting material into a product or multiple products.
  8. Numerical representation for how much of the theoretical yield was actually made in the reaction.
Down
  1. The maximum amount of product that can be produced with the limiting reactant used
  2. base unit of amount of substance
  3. how much is created
  4. a chemical reaction between substances, usually including oxygen and usually accompanied by the generation of heat and light in the form of flame.
  5. has excess after the reaction
  6. the mass of a sample of that compound divided by the amount of substance in that sample
  7. the relationship between the relative quantities of substances taking part in a reaction or forming a compound
  8. a chemical reaction in which one element is replaced by another in a compound

16 Clues: 6.02x10^23 • how much is created • has excess after the reaction • base unit of amount of substance • limits the amount of substance that can be made • Amount of product that is actually obtained during the experiment • a chemical reaction in which one element is replaced by another in a compound • ...

Unit 7 Crossword 2024-02-02

Unit 7 Crossword crossword puzzle
Across
  1. his equation demonstrated the mathematical relationship between a reaction's rate constant, activation energy, and temperature
  2. type of catalyst present in the same phase as the reactants
  3. this type of rate is at any instant in time
  4. rate______ is the proportionality constant in a rate law
  5. reaction _______ value of an exponent in a rate law
  6. _______ energy is the minimum energy necessary in order for a reaction to take place
  7. number of reactant species involved in an elementary reaction
  8. this type of reaction involves two reactant species
  9. _______ complex is the unstable combination of reactant species formed during a chemical reaction
  10. substance that increases the rate of a reaction without itself being consumed by the reaction
  11. ______ factor relates to the relative number of collisions having an orientation capable of leading to product formation
Down
  1. species produced in one step of a reaction mechanism and consumed in a subsequent step
  2. rate ______ mathematical representation defining reaction rate as change in amount, concentration, or pressure of reactant or product
  3. type of catalyst present in a different phase from the reactants, furnishing a surface at which a reaction can occur
  4. this type of reaction involves a single reactant species
  5. this type of reaction involves three reactant species
  6. this type of rate is computed as the ratio of a measured change in amount or concentration of substance to the time interval over which the change occurred
  7. time required for half of a given amount of reactant to be consumed
  8. this type of reaction takes place in a single step, precisely as depicted in its chemical equation
  9. rate ______ is a mathematical equation showing the dependence of reaction rate on the rate constant and the concentration of one or more reactants
  10. this theory emphasizes the energy and orientation of molecular collisions to explain and predict reaction kinetics
  11. reaction ________ stepwise sequence of elementary reactions by which a chemical change takes places

22 Clues: this type of rate is at any instant in time • reaction _______ value of an exponent in a rate law • this type of reaction involves two reactant species • this type of reaction involves three reactant species • this type of reaction involves a single reactant species • rate______ is the proportionality constant in a rate law • ...

Chemistry fun! 2012-03-16

Chemistry fun! crossword puzzle
Across
  1. a substance that increases the rate of a reaction and is regenerated at the end of the reaction
  2. [ H2 + 02 = H2O ] is an example of a _____ equation
  3. a positively charged ion
  4. Al2S3
  5. an ion that is composed of more than one atom
  6. German chemist who patented the process of extracting ammonia in 1910
  7. a chemical reaction in which one element takes the place of another element in a compound is a ______ displacement reaction.
  8. a pure substance that undergoes a chemical change
  9. AB = A + B (type of reaction)
  10. in the activity series the _____ reactive metals appear at the bottom
Down
  1. a number that is placed in front of a chemical formula in a balanced chemical equation
  2. Change in colour and formation of a precipitate are examples of evidence that a _____ ______ has occurred.
  3. a negatively charged ion
  4. A + B =AB (type of reaction)
  5. CO32-

15 Clues: Al2S3 • CO32- • a positively charged ion • a negatively charged ion • A + B =AB (type of reaction) • AB = A + B (type of reaction) • an ion that is composed of more than one atom • a pure substance that undergoes a chemical change • [ H2 + 02 = H2O ] is an example of a _____ equation • German chemist who patented the process of extracting ammonia in 1910 • ...

CHEMICAL AND PHYSICAL CHANGES OF SUBSTANCE 2025-12-03

CHEMICAL AND PHYSICAL CHANGES OF SUBSTANCE crossword puzzle
Across
  1. A solid that forms and settles out of a liquid during a chemical reaction.
  2. A special type of mixture where one substance (the solute) is dissolved in another (the solvent), like salt in water.
  3. A type of change where new substances with different properties are formed. It is usually irreversible.
  4. A physical separation method used to separate an insoluble solid from a liquid.
  5. The starting substances in a chemical reaction.
  6. The new substances formed in a chemical reaction.
Down
  1. A change that can be undone to get the original materials back (a key feature of most physical changes).
  2. A chemical reaction where a substance reacts rapidly with oxygen, releasing heat and light (burning).
  3. A characteristic used to describe or identify a substance (e.g., colour, melting point, reactivity).
  4. A type of change that does not create a new substance (e.g., change of state, dissolving). It is usually reversible.
  5. Two or more substances that are not chemically combined and can be separated by physical methods.
  6. A process where substances interact and change into new substances.
  7. A change that cannot be easily undone to get the original materials back (a key feature of most chemical changes).
  8. (Short for Conservation of Mass) The principle that mass is not created or destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.
  9. A chemical reaction where a substance gains oxygen. Rusting is a slow form of oxidation.

15 Clues: The starting substances in a chemical reaction. • The new substances formed in a chemical reaction. • A process where substances interact and change into new substances. • A solid that forms and settles out of a liquid during a chemical reaction. • A physical separation method used to separate an insoluble solid from a liquid. • ...

chemical reactions 2023-10-05

chemical reactions crossword puzzle
Across
  1. Compound made up of phosphorus and at least another element
  2. Chemical ______ process in which new substances are created
  3. Compound made up of phosphorus, oxygen and at least another element
  4. material with particular chemical characteristics
  5. the substances that react
  6. reaction that produces heat
  7. Compound made up of oxygen and at least another element
Down
  1. _______ change. Easy to revert, no new substances are created
  2. Compound made up of oxygen, sulfur and at least another element
  3. reaction that absorbs heat
  4. the substances that result from a chemical reaction
  5. substance made up of two or more different elements
  6. word ______, a simplified way to describe a chemical reaction
  7. Compound made up of carbon and at least another element

14 Clues: the substances that react • reaction that absorbs heat • reaction that produces heat • material with particular chemical characteristics • the substances that result from a chemical reaction • substance made up of two or more different elements • Compound made up of carbon and at least another element • Compound made up of oxygen and at least another element • ...

Science Midterm - Spring 2024 2024-04-08

Science Midterm - Spring 2024 crossword puzzle
Across
  1. Neutral subatomic particle found in the nucleus.
  2. Substances formed during a chemical reaction.
  3. Temperature at which a substance changes from a solid to a liquid.
  4. Elements that conduct electricity at high temperature but don't at low temperatures
  5. Type of chemical reaction in which one element replaces another in a compound.
  6. Mass per unit volume of a substance.
  7. Substances that release hydrogen ions in water and have a pH less than 7.
  8. Method of separating solid particles from a liquid.
  9. Positively charged subatomic particle found in the nucleus.
  10. The amount of matter in an object.
  11. Heterogeneous mixture in which particles settle out over time.
  12. Homogeneous mixture where one substance dissolves in another
  13. Number of protons in an atom's nucleus.
  14. Device used to measure weight.
  15. Device used to measure mass.
  16. Process of changing directly from a solid to a gas.
  17. Unit of force
  18. Type of chemical bond formed between oppositely charged ions.
  19. Method of separating particles based on size
  20. Method to measure the volume of an irregularly shaped object.
  21. Principle stating that the buoyant force on an object equals the weight of the fluid displaced by the object.
  22. Substance being dissolved in a solution.
  23. Type of chemical reaction in which two or more substances combine to form a new compound.
  24. Type of chemical reaction in which a compound breaks down into simpler substances.
Down
  1. Substances present at the start of a chemical reaction.
  2. Temperature at which a substance changes from a liquid to a gas.
  3. Highly reactive nonmetals
  4. Process of changing from a liquid to a gas.
  5. Fog and smoke are both examples of ____.
  6. The amount of space occupied by an object.
  7. The smallest particle of an element that still has the same chemical properties of the element
  8. Elements that don't react naturally with other elements
  9. Negatively charged subatomic particle.
  10. The number of protons plus the number of neutrons
  11. Matter cannot be created or destroyed in a chemical reaction.
  12. Chemical reaction that absorbs energy.
  13. Elements that are typically shiny, malleable, and good conductors of electricity.
  14. Reaction between an acid and a base to form water and a salt.
  15. Atoms with a positive or negative charge.
  16. Type of vaporization that occurs at the surface of a liquid.
  17. Type of colloid consisting of two immiscible liquids.
  18. Substances that release hydroxide ions in water and have a pH greater than 7.
  19. Chemical reaction that releases energy.
  20. Substance doing the dissolving in a solution.
  21. Central part of an atom containing protons and neutrons.
  22. The smallest particle of a compound that still has all of the properties of the compound
  23. The force exerted on an object due to gravity.

47 Clues: Unit of force • Highly reactive nonmetals • Device used to measure mass. • Device used to measure weight. • The amount of matter in an object. • Mass per unit volume of a substance. • Negatively charged subatomic particle. • Chemical reaction that absorbs energy. • Number of protons in an atom's nucleus. • Chemical reaction that releases energy. • ...

Chemistry fun! 2012-03-16

Chemistry fun! crossword puzzle
Across
  1. a substance that increases the rate of a reaction and is regenerated at the end of the reaction
  2. [ H2 + 02 = H2O ] is an example of a _____ equation
  3. a positively charged ion
  4. Al2S3
  5. an ion that is composed of more than one atom
  6. German chemist who patented the process of extracting ammonia in 1910
  7. a chemical reaction in which one element takes the place of another element in a compound is a ______ displacement reaction.
  8. a pure substance that undergoes a chemical change
  9. AB = A + B (type of reaction)
  10. in the activity series the _____ reactive metals appear at the bottom
Down
  1. a number that is placed in front of a chemical formula in a balanced chemical equation
  2. Change in colour and formation of a precipitate are examples of evidence that a _____ ______ has occurred.
  3. a negatively charged ion
  4. A + B =AB (type of reaction)
  5. CO32-

15 Clues: Al2S3 • CO32- • a positively charged ion • a negatively charged ion • A + B =AB (type of reaction) • AB = A + B (type of reaction) • an ion that is composed of more than one atom • a pure substance that undergoes a chemical change • [ H2 + 02 = H2O ] is an example of a _____ equation • German chemist who patented the process of extracting ammonia in 1910 • ...

Grade 9 Chemistry Review 2023-11-02

Grade 9 Chemistry Review crossword puzzle
Across
  1. Type of compound that is always solid at room temperature
  2. Contributes to atomic mass but doesn't have a charge
  3. Type of compound that is bad at conducting heat
  4. Pure substance containing only one type of atom
  5. Anything with mass
  6. A atom with more or less electrons than protons
  7. A mixture with even distribution of components
  8. Is given or taken when an atom becomes an ion
  9. Reaction with a metal and oxygen
  10. Reactive gases - group 17 on the periodic table
Down
  1. A substance with different compounds/elements
  2. The type of reaction that happens when the products of a chemical reaction feel cold
  3. Substance with the same type of molecule but different atoms
  4. The atomic number tells you the amount of these in an atom
  5. Type of atom that conducts heat well
  6. The substances that are made in a chemical reaction
  7. The type of reaction that is happening when a car burns gasoline
  8. A substance that speeds up a chemical reaction

18 Clues: Anything with mass • Reaction with a metal and oxygen • Type of atom that conducts heat well • A substance with different compounds/elements • Is given or taken when an atom becomes an ion • A mixture with even distribution of components • A substance that speeds up a chemical reaction • Type of compound that is bad at conducting heat • ...

4.3 Controlling Chemical Reactions 2024-02-05

4.3 Controlling Chemical Reactions crossword puzzle
Across
  1. the burning of fuels, such as wood, or oil
  2. added to food to prevent spoiling
  3. a type of protein that speeds up chemical reaction in a living thing
  4. hand warmers use ___ energy
  5. minimum energy required to start a chemical reaction
  6. increasing the ____ can be dangerous if it speeds up a reaction
  7. Hydrogen and Oxygen can react to form __
  8. a spark most likely ignited ___ and destroyed the airship
Down
  1. when a banana or an avocado turn brown
  2. draw energy from the surroundings, and leave an area feeling cold
  3. airship destroyed by flames in New Jersey
  4. chemical reactions using enzymes require __ activation energy
  5. material used to decrease the rate of a chemical reaction
  6. increases the reaction rate
  7. the amount of a substance in a given volume

15 Clues: increases the reaction rate • hand warmers use ___ energy • added to food to prevent spoiling • when a banana or an avocado turn brown • Hydrogen and Oxygen can react to form __ • airship destroyed by flames in New Jersey • the burning of fuels, such as wood, or oil • the amount of a substance in a given volume • minimum energy required to start a chemical reaction • ...

Molecules & Chemical Formulas Vocabulary 2023-11-03

Molecules & Chemical Formulas Vocabulary crossword puzzle
Across
  1. elements or compounds that enter into a chemical reaction
  2. a pure substance made of only one kind of atom
  3. a change in which one or more substances are converted into new substances
  4. a chemical bond formed when two atoms share valence electrons
  5. the elements or compounds produced by a chemical reaction
  6. two or more atoms held together by covalent bonds
  7. the smallest particle of an element that still has the properties of that element
Down
  1. numbers representing the number of units of each substance that are taking part in a chemical reaction
  2. a group of chemical symbols and numbers that represent the elements and the number of atoms of each element that make up a compound
  3. electrons in the outermost energy level of an atom that are involved in chemical reactions
  4. matter is neither created nor destroyed in a chemical reaction
  5. a way to describe a chemical reaction using chemical formulas and other symbols
  6. a substance made up of atoms of two or more different elements joined by chemical bonds

13 Clues: a pure substance made of only one kind of atom • two or more atoms held together by covalent bonds • elements or compounds that enter into a chemical reaction • the elements or compounds produced by a chemical reaction • a chemical bond formed when two atoms share valence electrons • matter is neither created nor destroyed in a chemical reaction • ...

Chemistry Crossword Assignment 2015-11-19

Chemistry Crossword Assignment crossword puzzle
Across
  1. combination of pure substances.
  2. change of state from a solid to a liquid.
  3. ability of a substance to conduct electricity or heat.
  4. a reaction that takes place when two or more substances react to form new substances.
  5. an experiment in which all reactants and all products of a chemical reaction are accounted for.
  6. positively charged particle in the nucleus of an atom
  7. an experiment in which one or more products of a chemical reaction can escape.
  8. mass of one atom of an element calculated from the total number of protons,neutrons ,and electrons of that atom (measured in amu.)
  9. substance that reacts with another substance or substances in a chemical reaction to create new substances with different properties.
  10. pure substance that cannot be broken down into other substances.
  11. Workplace Hazardous Materials Information System; a system of easy-to-see warning symbols on hazardous materials
  12. vertical column of elements in the periodic table.
  13. invisible negatively charged particle that orbits the nucleus of an atom
Down
  1. pure substances formed when non-metals combine.
  2. atom that has become electrically charged because it has lost or gained electrons.
  3. number of protons in the nucleus of one atom of an element.
  4. group 1 elements in the periodic table, not include hydrogen; the most reactive of the metals.
  5. group 17 elements in the periodic table; the most reactive non-metals.
  6. substance that helps a chemical reaction to proceed more quickly.
  7. description of a substance that can be pounded or rolled into sheets.
  8. new substance produced in a chemical reaction between reactants.
  9. a slow chemical change change that occurs when oxygen in air reacts with a metal
  10. horizontal row of elements in the periodic table.
  11. a chemical combination of two or more elements in a specific ratio
  12. neutral particle in the nucleus of an atom.

25 Clues: combination of pure substances. • change of state from a solid to a liquid. • neutral particle in the nucleus of an atom. • pure substances formed when non-metals combine. • horizontal row of elements in the periodic table. • vertical column of elements in the periodic table. • positively charged particle in the nucleus of an atom • ...

Chemistry Crossword 2015-11-17

Chemistry Crossword crossword puzzle
Across
  1. Description of a solid that can be stretched into a long wire
  2. substance that reacts with another substance or substances in a chemical reaction to create new substances with different properties
  3. Chemical combination of two or more elements in a specific ration
  4. chemical reaction that releases heat/energy
  5. description of a substance that can be pounded or rolled into sheets
  6. change in the appearance or state of a substance that does not change the composition
  7. neutral particle in the nucleus of an atom
  8. Mass of one atom of an element calculated from the total number of protons, neutrons, and electrons of the atom; measured in atomic mass units
  9. new substance produced in a chemical reaction between reactants
  10. pure substance formed when non-metals combine
  11. Group 1 Elements in the periodic table, not including hydrogen; the most reactive of the metals
Down
  1. pure substance that cannot be broken down into other substances
  2. combination of pure substances
  3. Slow chemical change that occurs when oxygen in the air reacts with a metal
  4. group 18 elements in the periodic table; the most stable and unreactive elements
  5. Stands for Atomic Mass Units
  6. A reaction that takes place when two or more substances react to form new substances
  7. Group 2 elements in the periodic table; their reactivity is not as strong as that of the alkali earth metals
  8. 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
  9. positively charged particle in the nucleus of an atom
  10. Pure substance formed when at least one metal and one non-metal combine
  11. Number of protons in the nucleus of one atom of an element
  12. chemical reaction that absorbs heat/energy
  13. Ability of a substance to conduct electricity or heat
  14. Substance that helps a chemical reaction to proceed more quickly

25 Clues: Stands for Atomic Mass Units • combination of pure substances • chemical reaction that absorbs heat/energy • neutral particle in the nucleus of an atom • chemical reaction that releases heat/energy • pure substance formed when non-metals combine • positively charged particle in the nucleus of an atom • Ability of a substance to conduct electricity or heat • ...

Chemical Reactions Vocabulary 2025-03-26

Chemical Reactions Vocabulary crossword puzzle
Across
  1. Formula Shows the type and number of atoms in a particular molecules
  2. The number that goes beside a molecule and can be added to a balance a chemical equation
  3. The atoms that go into a chemical reaction
  4. A change that alters only the physical properties of a substance
  5. A type of reaction that involves two substances splitting
  6. The new molecules that are formed after a chemical reaction
Down
  1. A change that alters the chemical composition of a substance and involves the rearrangement of atoms
  2. Used to show the number of atoms in a chemical formula
  3. A reaction that releases heat
  4. A type of reaction that involves two substances combining
  5. A reaction that absorbs heat
  6. A type of reaction that involves a fuel reacting with oxygen
  7. The Law Of Conservation Of ____ states that matter cannot be created or destroyed, only rearranged

13 Clues: A reaction that absorbs heat • A reaction that releases heat • The atoms that go into a chemical reaction • Used to show the number of atoms in a chemical formula • A type of reaction that involves two substances combining • A type of reaction that involves two substances splitting • The new molecules that are formed after a chemical reaction • ...

Enzymes Crossword Puzzle 2023-11-12

Enzymes Crossword Puzzle crossword puzzle
Across
  1. an enzyme that has a damaged active site; can no longer catalyze chemical reactions
  2. the part of the enzyme that the reactants bind to
  3. reactions that use energy to combine smaller molecules into bigger molecules
  4. molecules that speed up chemical reactions by lowering the activation energy needed for a chemical reaction to occur
  5. the enzyme-substrate _____________ is the combination of the enzyme and the substrate when they're bound together
  6. the word to describe the ideal temperature or pH for an enzyme
  7. the amount of energy needed to start a chemical reaction
  8. the starting materials in a chemical reaction
  9. biological catalysts
Down
  1. the _______ of reaction is how fast or how well an enzyme works
  2. reactions that break down big molecules into smaller molecules, releasing energy
  3. all of the chemical reactions in a cell or organism
  4. one of the two conditions that affect an enzyme's rate of reaction
  5. one of the two conditions that affect an enzyme's rate of reaction
  6. the starting materials in a chemical reaction
  7. the reactants that bind to the active site

16 Clues: biological catalysts • the reactants that bind to the active site • the starting materials in a chemical reaction • the starting materials in a chemical reaction • the part of the enzyme that the reactants bind to • all of the chemical reactions in a cell or organism • the amount of energy needed to start a chemical reaction • ...

Chem - Reaction Kinetics 2021-04-12

Chem - Reaction Kinetics crossword puzzle
Across
  1. a transitional structure that results from an effective collision and that persists while old bonds are breaking and new bonds are forming
  2. the combined enthalpy-entropy function of a system
  3. an equation that relates the reaction rate and concentrations of reactants
  4. the energy transferred between samples of matter because of a difference in their temperature
  5. the area of chemistry that is concerned with reaction rates and reaction mechanisms
  6. a reaction involving reactants in two different phases
  7. the heat released or absorbed when one mole of a compound is formed by the combination of its elements
  8. a measure of the degree of randomness of the particles, such as molecules, in a system
  9. the action of a catalyst
  10. the quantity of energy released or absorbed as heat during a chemical reaction
  11. a measure of the average kinetic energy of the particles in a sample of matter
  12. the amount of energy absorbed or lost by a system during a process at constant pressure
  13. the SI unit of heat energy as well as all other forms of energy
  14. a catalyst whose phase is different from that of the reactants
  15. an equation that includes the quantity of heat released or absorbed during the reaction as written
  16. the amount of heat energy required to raise the temperature of one gram of substance by one Celsius degree or one kelvin
  17. a species that appears in some steps of a reaction but not in the net equation
  18. set of assumptions regarding collisions and reactions
  19. a device used to measure the heat absorbed or released in a chemical or physical change
Down
  1. the slowest-rate step for a chemical reaction
  2. the difference between the change in enthalpy, H, and the product of the Kelvin temperature and the entropy change, which is defined as TS, at a constant pressure and temperature
  3. energy released as heat by the complete combustion of one mole of a substance
  4. the change in concentration of reactants per unit time as a reaction proceeds
  5. a catalyst that is in the same phase as all the reactants and products in a reaction system
  6. the minimum energy required to transform the reactants into an activated complex
  7. a substance that changes the rate of a chemical reaction without itself being permanently consumed
  8. a reaction whose reactants and products exist in a single phase
  9. the step-by-step sequence of reactions by which the overall chemical change occurs
  10. the study of the changes in heat energy that accompany chemical reactions and physical changes
  11. the overall enthalpy change in a reaction is equal to the sum of the enthalpy changes for the individual steps in the process

30 Clues: the action of a catalyst • the slowest-rate step for a chemical reaction • the combined enthalpy-entropy function of a system • set of assumptions regarding collisions and reactions • a reaction involving reactants in two different phases • a catalyst whose phase is different from that of the reactants • ...

Chapter Six Vocabulary 2024-03-08

Chapter Six Vocabulary crossword puzzle
Across
  1. Chemical reaction that requires an input of energy; opposite of exergonic reaction
  2. Energy that must be added in order for molecules to react with one another
  3. Series of linked reactions, beginning with a particular reactant and terminating with an end product
  4. Nucleotide with two phosphate groups that can accept another phosphate group and become ATP
  5. Substance that participates in a reaction
  6. Nucleotide with three phosphate groups. The breakdown of ATP into ADP + P makes energy available for energy-requiring processes in cells
  7. Nonprotein assistant required by an enzyme in order to function. Many cofactors are metal ions; others are coenzymes
  8. Energy associated with motion
  9. Substance that forms as a result of a reaction
  10. RNA molecule that functions as an enzyme that can catalyse chemical reactions
  11. A paired set of chemical reactions in which one molecule gives up electrons (oxidized) while another molecule accepts electrons (reduced); commonly called a redox reaction
  12. Nonprotein organic molecule that aids the action of the enzyme to which it is loosely bound
  13. stored energy in a potentially usable form, as a result of location or spatial arrangement
  14. Change in the shape of an enzyme's active site that enhances the fit between the active site and its substrates
Down
  1. Chemical reaction that releases energy; opposite of endergonic reaction
  2. Reactions that occur simultaneously; one is an exergonic reaction that releases energy, and the other is an endergonic reaction that requires an input of energy in order to occur
  3. Region of an enzyme where the substrate binds and where the chemical reactions occurs
  4. Capacity to do work and bring about change; occurs in a variety of forms
  5. Energy in a system that is capable of performing work
  6. Two laws explaining energy and its relationships and exchanges. The first, also called the "law of conservation," says that energy cannot be created or destroyed but only can be changed from one form to another. The second says that energy cannot be changed from one form to another without a loss of usable energy
  7. Means by which cells regulate enzyme activity; may be competitive or noncompetitive inhibition
  8. Metabolic process that breaks down large molecules into smaller ones; catabolic metabolism
  9. Measure of disorder or randomness in a system
  10. The sum of the chemical reactions that occur in a cell
  11. Organic nutrient that is required in small amounts for metabolic functions. Vitamins are often part of coenzymes
  12. Chemical reaction in which smaller molecules (monomers) are combined to form larger molecules (polymers); anabolic metabolism
  13. Organic catalyst, usually a protein, that speeds a reaction in cells due to its particular shape

27 Clues: Energy associated with motion • Substance that participates in a reaction • Measure of disorder or randomness in a system • Substance that forms as a result of a reaction • Energy in a system that is capable of performing work • The sum of the chemical reactions that occur in a cell • Chemical reaction that releases energy; opposite of endergonic reaction • ...

unit vocab 2024-12-17

unit vocab crossword puzzle
Across
  1. proteins that help speed up metabolism, or the chemical reactions in our bodies
  2. The chemical substances which are formed due to a chemical reaction between two or more chemical substances
  3. s a region of repetitive DNA sequences at the end of a chromosome.
  4. The basic unit of heredity passed from parent to child
  5. any one of a large number of diseases characterized by the development of abnormal cells that divide uncontrollably and have the ability to infiltrate and destroy normal body tissue
  6. cells with the potential to develop into many different types of cells in the body.
  7. threadlike structures made of protein and a single molecule of DNA that serve to carry the genomic information from cell to cell
  8. the identical copies of a chromosome that are held together during replication and remain attached until they are separated during mitosis
  9. An exothermic process releases heat, causing the temperature of the immediate surroundings to rise
  10. only the atoms present in the reactants can end up in the products
  11. a chemical reaction that releases energy by light or heat
Down
  1. the minimum amount of energy needed to start a chemical reaction
  2. tissue building (mainly muscle)
  3. the sequences of enzyme-catalyzed reactions by which relatively large molecules in living cells are broken down, or degraded
  4. proteins that help speed up metabolism, or the chemical reactions in our bodies
  5. A reactant in a chemical reaction is called a substrate when acted upon by an enzyme.
  6. the chemical reactions in the body's cells that change food into energy.
  7. a region on an enzyme that binds to a protein or other substance during a reaction
  8. a series of events that takes place in a cell as it grows and divides
  9. the unfolding or breaking up of a protein, modifying its standard three-dimensional structure

20 Clues: tissue building (mainly muscle) • The basic unit of heredity passed from parent to child • a chemical reaction that releases energy by light or heat • the minimum amount of energy needed to start a chemical reaction • s a region of repetitive DNA sequences at the end of a chromosome. • only the atoms present in the reactants can end up in the products • ...

Biomolecule and Enzyme Vocabulary 2024-04-24

Biomolecule and Enzyme Vocabulary crossword puzzle
Across
  1. molecules where information is stored
  2. a nonmental on the Periodic Table of Elements
  3. a sugar needed to form DNA
  4. building blocks of protein
  5. an organic molecule in living things
  6. small molecules that form polymer together
  7. a main nutrients in food
  8. where molecules undergo a reaction
  9. a molecule that has nitrogen and has the chemical properties of a base
Down
  1. amount of energy that is required to start a reaction
  2. building block of body fats
  3. substance made by plants and animals
  4. large molecules that are made of monomer
  5. a substance used in a reaction
  6. a substance which increases the rate of a chemical reaction
  7. using water to break down a molecule into two
  8. a base layer
  9. something that is made
  10. large compounds that are necessary for life
  11. a chemical compound found in living organisms

20 Clues: a base layer • something that is made • a main nutrients in food • a sugar needed to form DNA • building blocks of protein • building block of body fats • a substance used in a reaction • where molecules undergo a reaction • substance made by plants and animals • an organic molecule in living things • molecules where information is stored • large molecules that are made of monomer • ...

Reactive Thinking 2025-04-27

Reactive Thinking crossword puzzle
Across
  1. A substance that increases the rate of a chemical reaction without itself undergoing. any permanent chemical change.
  2. Type of decomposition reaction which only takes place with the presence of heat.
  3. Process of a substance loosing electrons during a redox reaction.
  4. process where reactant/s react to form one or more products
  5. A reaction which absorbs heat.
  6. Process of a substance gaining electrons during a redox reaction.
  7. Reacts to form one or more products.
Down
  1. Type of reaction where an element reacts with a compound and takes the place of another element in that compound.
  2. Type of decomposition reaction which only takes place with the presence of light.
  3. Type of reaction where a compound breaks down into two or more simpler substances.
  4. A reaction which radiates heat.
  5. Substance/s formed after a chemical reaction.
  6. Type of reaction where two or more reactants form a single product.
  7. A reaction that takes place between an oxidizing substance and a reducing substance.
  8. Type of decomposition reaction which only takes place with the presence of electricity.

15 Clues: A reaction which absorbs heat. • A reaction which radiates heat. • Reacts to form one or more products. • Substance/s formed after a chemical reaction. • process where reactant/s react to form one or more products • Process of a substance loosing electrons during a redox reaction. • Process of a substance gaining electrons during a redox reaction. • ...

Sarah's Chemistry Crossword Puzzle 2025-12-20

Sarah's Chemistry Crossword Puzzle crossword puzzle
Across
  1. solids,glass,rubber their atoms randomly arranged
  2. processes rusting batteries, corrosion
  3. chemical donds,electrons
  4. a state of balance
  5. who won the first Nobel prize in chemistry last name No Van't
  6. synthetic, superheavy, group 4 transition metal
  7. cyanogenic glycoside
  8. substance that speeds up a chemical reaction
  9. specific wavelengths, to quantify it, instrument
Down
  1. ideal Gas law
  2. substance formed by the electrostatic attraction between oppositely charged particles
  3. conical laboratory flask
  4. the most common reaction is between aluminum and iron oxide producing aluminum oxide and molten iron.
  5. Law of Conservation of Mass, Last name
  6. chemical process where a substance loses electrons, often involving the gain of _____ or loss of hydrogen, leading to increased _____ state
  7. element with the highest boiling point in the periodic table (5930*C)
  8. form of photoluminescence
  9. reaction carbon=carbon double bonds, last name
  10. reaction carbon-carbon bonds___ reagent
  11. fundamental way to express solution concentration

20 Clues: ideal Gas law • a state of balance • cyanogenic glycoside • conical laboratory flask • chemical donds,electrons • form of photoluminescence • processes rusting batteries, corrosion • Law of Conservation of Mass, Last name • reaction carbon-carbon bonds___ reagent • substance that speeds up a chemical reaction • reaction carbon=carbon double bonds, last name • ...

Chemistry Unit Test Review 2014-03-09

Chemistry Unit Test Review crossword puzzle
Across
  1. This type of chemical reaction has the equation: A + B --> AB
  2. This type of paper indicator gives the specific pH
  3. In an exothermic reaction, energy is _________ from the reactants and is __________ into the surroundings.
  4. Energy is transferred from the surroundings to the reactants in an _____________ reaction
  5. When acids and bases neutralize they produce a _________
  6. A solution that has a pH above 7 is a ______
  7. In a combustion reaction, the products always have _______.
Down
  1. A phase change is a type of
  2. When hydronium, H3O+ and hydroxide, OH- react what is produced is ______________
  3. When bases are put in water, they release _____________ ions.
  4. Energy was absorbed to ________ bonds
  5. In a chemical reaction the atoms will be
  6. Chemical energy is energy that is present in _____________
  7. Energy is released to _________ bonds
  8. Limestone is a base and will __________ with an acid.
  9. When put into water, acids release _________ ions.
  10. The reactants are different from the products in a ________change

17 Clues: A phase change is a type of • Energy was absorbed to ________ bonds • Energy is released to _________ bonds • In a chemical reaction the atoms will be • A solution that has a pH above 7 is a ______ • This type of paper indicator gives the specific pH • When put into water, acids release _________ ions. • Limestone is a base and will __________ with an acid. • ...

Arson and Explosives Crossword 2021-04-12

Arson and Explosives Crossword crossword puzzle
Across
  1. What most arsons are started with
  2. a very rapid oxidation reaction accompanied by the generation of a low-intensity pressure wave that can disrupt the surroundings
  3. any material used to start or sustain a fire
  4. The loss of electrons from a substance involved in a redox reaction.
  5. substance reacts with oxygen to give heat and light
  6. Examples of this explosive type are :Dynamite, TNT, PETN and RDX
  7. the minimum temperature at which a fuel spontaneouly ignites
  8. a chemical reaction accompanied by the evolution of heat
Down
  1. a chemical reaction accompanied by the absorption of heat
  2. bombing incidents that confront police agencies today involve
  3. the type of chemical reaction fire is
  4. a high explosive that normally has to be detonated by a primary explosive.
  5. the lowest temperature at which the vapor of a combustible liquid can be ignited in air
  6. a violent release of energy caused by a chemical or nuclear reaction
  7. a mechanical device you can carry in your hand that will pick up compounds
  8. a sudden outburst
  9. a high explosive that is easily detonated by heat, shock, or friction
  10. the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit

18 Clues: a sudden outburst • What most arsons are started with • the type of chemical reaction fire is • any material used to start or sustain a fire • substance reacts with oxygen to give heat and light • a chemical reaction accompanied by the evolution of heat • a chemical reaction accompanied by the absorption of heat • ...

SCIENCE 2014-12-09

SCIENCE crossword puzzle
Across
  1. Sedi
  2. Were alive
  3. Stuff to create something
  4. We turn it on
  5. life
  6. your playing with it
  7. Sand Stone
  8. We drink it
  9. cell
  10. Minecraft
  11. Rocks with a y
Down
  1. I'm Hot
  2. it's in
  3. Very windy
  4. we use it everyday
  5. Millions of alu ;)
  6. We walk on it
  7. Main source
  8. chemical reaction
  9. its a planet
  10. the building block of life

21 Clues: Sedi • life • cell • I'm Hot • it's in • Minecraft • Very windy • Were alive • Sand Stone • Main source • We drink it • its a planet • We walk on it • We turn it on • Rocks with a y • chemical reaction • we use it everyday • Millions of alu ;) • your playing with it • Stuff to create something • the building block of life

Vocabulary Crossword 2023-01-30

Vocabulary Crossword crossword puzzle
Across
  1. A substance that expands freely without shape or volume
  2. Change One or more substances change into new substances
  3. Reaction Reaction in which electrons are transferred from one reactant to another
  4. Reaction One in which a substance reacts rapidly with oxygen, often producing heat and light
  5. Mass Mass of one mole of an substance
  6. Replacement Reaction in which one element takes place of another element in a compound
  7. Rate Rate at which reactants change into products
Down
  1. Substance that affects the reaction rate without being used up in the reaction
  2. Subtances that undergo change
  3. Reaction Chemical reaction that absorbs energy from its surroundings
  4. Energy Energy stored in the chemical bonds of a substance
  5. A substance that flows freely
  6. Reaction Chemical reacts that releases energy to its surroundings
  7. Replacement One in which two different compunds exchange positive ions and form two new compounds
  8. Firm and Stable

15 Clues: Firm and Stable • Subtances that undergo change • A substance that flows freely • Mass Mass of one mole of an substance • Rate Rate at which reactants change into products • A substance that expands freely without shape or volume • Change One or more substances change into new substances • Energy Energy stored in the chemical bonds of a substance • ...

BI 112 CH 6 2020-02-22

BI 112 CH 6 crossword puzzle
Across
  1. A type of inhibitor that is an off switch for an enzyme's active site
  2. A type of reaction that is spontaneous because it releases energy. Delta G is negative.
  3. Disorganized energy and is related to the 2nd law of thermodynamics
  4. Binds to active site competing with substrate. (2 words)
  5. The end product of a metabolic pathway shuts down the pathway which helps to prevent a cell from wasting chemical resources. (2 words)
  6. A type of energy that is the initial energy that is required to destabilize the existing bonds to initiate a chemical reaction.
  7. A type of energy that is defined as chemical. It is stored energy, like a rock sitting on the edge of a cliff.
  8. Non protein enzyme helpers. They help increase rate of reaction time or may be required for an enzyme to function, a lot of vitamins are these.
  9. A chemical agent that speeds up chemical reactions without being consumed.
Down
  1. On switch for an enzyme's active site (2 words)
  2. Defined as the ability to do work
  3. Binds to another part of an enzyme causing it to change shape thus making it less active (2 words)
  4. A type of reaction that is not spontaneous because it needs energy. Delta G is positive.
  5. State right before the molecules break down in a chemical reaction
  6. A linked series of chemical reactions occurring within a cell. It builds and breaks down molecules for cellular processes (2 words)
  7. ATP drives an endergonic reaction by ______ which is transferring a phosphate group to another molecule
  8. A type of energy that is associated with movement. An example is a skier flying through the air.
  9. To do work cells much manage energy _____
  10. A type of pathway that's breaking down large molecules and releasing energy.
  11. A type of pathway that consumes energy and is used to build large molecules from smaller subunits

20 Clues: Defined as the ability to do work • To do work cells much manage energy _____ • On switch for an enzyme's active site (2 words) • Binds to active site competing with substrate. (2 words) • State right before the molecules break down in a chemical reaction • Disorganized energy and is related to the 2nd law of thermodynamics • ...

Chemical Compounds 2016-01-16

Chemical Compounds crossword puzzle
Across
  1. When an elements' charge is increased in a chemical equation.
  2. The type of bond formed in NaCl.
  3. A lasting attraction between atoms.
  4. Zn + 2HCl -> ZnCl2 + H2
  5. Zncl2 is an example of this.
  6. When an elements' charge is reduced in a chemical equation.
  7. A useful guide for predicting products of metal displacement.
  8. Shape of H2O.
  9. When a compounds' shape is NOT symmetrical.
  10. Substance that changes in a chemical reaction.
  11. Ag, Zn, Al are examples of this.
  12. Shape of BBr3.
Down
  1. Br2, I2, N2, Cl2, H2, O2, F2
  2. C2H3O2 -> CO2 + H2O
  3. HCl + AgNO3 -> AgCl + HNO3
  4. A single hydrogen atom is one of these.
  5. Symbolic representation of a chemical reaction.
  6. A number or symbol multiplied with a variable.
  7. 2NaCl -> 2Na + Cl2
  8. Shape of CH4.
  9. Na + Cl -> NaCl
  10. Shape of NCl3.
  11. The type of bond formed when Zn(NO3)2 is produced.
  12. Substance that is formed ion a chemical reaction.
  13. Physical property.
  14. Shape of BeH2.
  15. when a compounds' shape IS symmetrical.

27 Clues: Shape of CH4. • Shape of H2O. • Shape of NCl3. • Shape of BBr3. • Shape of BeH2. • Na + Cl -> NaCl • 2NaCl -> 2Na + Cl2 • Physical property. • C2H3O2 -> CO2 + H2O • Zn + 2HCl -> ZnCl2 + H2 • HCl + AgNO3 -> AgCl + HNO3 • Br2, I2, N2, Cl2, H2, O2, F2 • Zncl2 is an example of this. • The type of bond formed in NaCl. • Ag, Zn, Al are examples of this. • A lasting attraction between atoms. • ...

biology 2023-01-23

biology crossword puzzle
Across
  1. compound
  2. any of the class of sugars
  3. scale a measure of how acidic/basic water is.
  4. The chemical changes that take place in a cell or an organism
  5. organic compounds that are fatty acids or their derivatives
  6. nucleoside linked to phosphate
  7. The substances that go into a chemical reaction
  8. the surface on which an organism
  9. from within
Down
  1. a diverse category of products and are generally large, complex molecules
  2. reaction when chemical bonds between atoms are formed or broken
  3. a substance that molecular structure consisting chiefly of or entirely of similar units bound together
  4. large group of organic compounds
  5. biological catalyst and is almost always a protein.
  6. energy the amount of energy required to reach the transition state
  7. acid: complex organic substance
  8. acid molecules that combine to form proteins
  9. to
  10. of
  11. enzyme
  12. molecule made up of amino acids
  13. a molecule which can facilitate a chemical reaction without being consumed or changed.

22 Clues: to • of • enzyme • compound • from within • any of the class of sugars • nucleoside linked to phosphate • acid: complex organic substance • molecule made up of amino acids • large group of organic compounds • the surface on which an organism • acid molecules that combine to form proteins • scale a measure of how acidic/basic water is. • The substances that go into a chemical reaction • ...

Bundle 1: Chemical Reactions Vocabulary Review 2022-12-06

Bundle 1: Chemical Reactions Vocabulary Review crossword puzzle
Across
  1. state of matter with definite shape & volume
  2. observed/measured after chemicals react
  3. large amounts
  4. formulas & symbols to show a reaction
  5. made from 1 or more natural resources
  6. process changing a chemical or compound
  7. simplest unit of a chemical compound
  8. not replaced in a short time by nature
  9. characteristics used to describe a substance
  10. to prevent the loss of something
  11. produced during a chemical reaction
  12. anything with volume and mass
  13. smallest particle of an element
  14. can't be created nor destroyed
  15. solid material with atoms arranged in a pattern
Down
  1. insoluble solid formed in a reaction
  2. small number below & the right of the symbol
  3. existing w/out human intervention
  4. & numbers to show a substance
  5. observed without changing a substance
  6. 2 or more elements chemically combined
  7. a substance changes producing new one
  8. amount of matter in a substance
  9. number in front of a chemical symbol
  10. single substance w/composition& properties
  11. undergoes change during chemical reactions

26 Clues: large amounts • & numbers to show a substance • anything with volume and mass • can't be created nor destroyed • amount of matter in a substance • smallest particle of an element • to prevent the loss of something • existing w/out human intervention • produced during a chemical reaction • insoluble solid formed in a reaction • simplest unit of a chemical compound • ...

chemistry crosswords 2014-11-29

chemistry crosswords crossword puzzle
Across
  1. negatively charged atom particle that is part of an atom
  2. is a system easy-to-see warning symbols and hazardous materials
  3. element that both metallic and non-metallic properties
  4. the new material that is produced from the reaction
  5. a reaction that takes place when two or more substance react to form new substances
  6. CHANGE that results when two or more substance react to create a different substance or substances
  7. group of of atoms joined by bonds
  8. dull, brittle element that does not conduct electricity
  9. solid to a liquid
  10. a chemical reaction that releases heat energy
  11. the starting a material of a reaction
  12. matter can exist as solid and liquids and gases
Down
  1. chemical combination of two or more elements in specific ratio
  2. is something that has mass and occupies space
  3. change in the appearance or state of a substance that does not change the composition
  4. liquid to a gas
  5. liquid to a solid
  6. number of protons in an atom of a nucleus
  7. a substance that speeds up a chemical reaction
  8. a chemical reaction that absorbs heat energy
  9. gas to a liquid
  10. atom that has become electrically charged because it has lost one or gained electrons
  11. a pure substance that can't be broken down into more atoms
  12. a catalyst to break down food
  13. shiny, malleable,conductive material, and ductile

25 Clues: liquid to a gas • gas to a liquid • liquid to a solid • solid to a liquid • a catalyst to break down food • group of of atoms joined by bonds • the starting a material of a reaction • number of protons in an atom of a nucleus • a chemical reaction that absorbs heat energy • is something that has mass and occupies space • a chemical reaction that releases heat energy • ...

Integrated Science - Chemical Reactions 2021-12-17

Integrated Science - Chemical Reactions crossword puzzle
Across
  1. any substance that increases the rate of a chemical reaction without itself being consumed by the reaction
  2. the substances that interact to form a new substance in a chemical reaction
  3. description of a chemical reaction in which there is a net release of energy
  4. the amount of energy required to pull two bonded atoms apart, which is the same amount of energy released when two atoms are brought together into a bond
  5. a rapid exothermic reaction between a flammable substance and oxygen
  6. the new materials formed in a chemical reaction
Down
  1. a measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases
  2. a representation of a chemical reaction in which reactants are written to the left of an arrow that points towards the products on the right
  3. this states that matter is neither created nor destroyed during a chemical reaction; atoms are merely rearranged to form new molecules
  4. the minimum energy required in order for a chemical reaction to proceed
  5. description of a chemical reaction in which there is a net absorption of energy

11 Clues: the new materials formed in a chemical reaction • a rapid exothermic reaction between a flammable substance and oxygen • the minimum energy required in order for a chemical reaction to proceed • the substances that interact to form a new substance in a chemical reaction • description of a chemical reaction in which there is a net release of energy • ...

Chemical Reactions (Group 2) 2025-03-17

Chemical Reactions (Group 2) crossword puzzle
Across
  1. A reaction where a single compound breaks down into two or more simpler substances.
  2. The substance that is formed as a result of a chemical reaction.
  3. A type of energy involved in chemical reactions, especially endothermic and exothermic processes.
  4. states the principle that mass is neither created nor destroyed in a chemical reaction.
  5. A solid that forms and settles out of a liquid solution in a chemical rea
  6. A substance that speeds up a chemical reaction without being consumed.
Down
  1. The small number in a chemical formula that indicates the number of atoms of an element.
  2. A chemical reaction in which a substance reacts with oxygen, often producing heat and light.
  3. A reaction in which two or more substances combine to form a single product.
  4. A symbolic representation of a chemical reaction using element symbols and formulas.
  5. A substance that starts a chemical reaction and is consumed during the process.

11 Clues: The substance that is formed as a result of a chemical reaction. • A substance that speeds up a chemical reaction without being consumed. • A solid that forms and settles out of a liquid solution in a chemical rea • A reaction in which two or more substances combine to form a single product. • ...

Dining on the sun 2024-10-02

Dining on the sun crossword puzzle
Across
  1. gives plants their green color
  2. represents a chemical reaction with symbols
  3. type of energy stored as glucose
  4. what is produced by a chemical reaction
  5. process that makes food from sunlight
  6. "tiny organs of a cell"
  7. are producers that gives energy through food and oxygen
Down
  1. substance required for a chemical reaction
  2. plants get this from the air
  3. sugar created from sunlight
  4. manufacturing center for photosynthesis
  5. source of energy for all food on earth
  6. waste product of photosynthesis
  7. plants absorb this through their roots
  8. energy from the sun

15 Clues: energy from the sun • "tiny organs of a cell" • sugar created from sunlight • plants get this from the air • gives plants their green color • waste product of photosynthesis • type of energy stored as glucose • process that makes food from sunlight • source of energy for all food on earth • plants absorb this through their roots • manufacturing center for photosynthesis • ...

Hobbit Words 2023-2024 Week 27 2022-11-03

Hobbit Words 2023-2024 Week 27 crossword puzzle
Across
  1. reaction in which one substance takes the place of another
  2. an official church statement and explanation of the biblical truths that are believed
  3. symbolic representation of a chemical reaction
  4. reaction in which two substances trade places
  5. finding a way to work through a disagreement
  6. an official explanation
  7. a molecule breaks apart into two or more atoms
  8. the act of choosing; God's free choice to graciously save certain sinners
  9. often a disagreement, or when two or more people do not agree with each other
  10. the act of continuing; not falling away
  11. an official statement of the basic Christian beliefs
Down
  1. relaying your feelings by blaming others, beginning with "you"
  2. agreement; oneness
  3. the elect; the true Christians; the saved children of God
  4. matter and energy cannot be created or destroyed; they can only change forms
  5. impossible to stop; all-powerful
  6. occurs when atomic bonds are formed or broken
  7. feelings, including happiness, sadness, fear, loneliness, love, and so many more
  8. absolute; without any attached conditions
  9. two or more atoms combine to form a molecule
  10. atoms or molecules present at the beginning of a chemical reaction
  11. atoms or molecules formed by a chemical reaction
  12. the state of being without any good; being full of sin and evil; being spiritually dead in sin
  13. the rate or speed at which a chemical reaction takes place

24 Clues: agreement; oneness • an official explanation • impossible to stop; all-powerful • the act of continuing; not falling away • absolute; without any attached conditions • finding a way to work through a disagreement • two or more atoms combine to form a molecule • occurs when atomic bonds are formed or broken • reaction in which two substances trade places • ...

General Chemistry 2 Chapter 2 2025-02-16

General Chemistry 2 Chapter 2 crossword puzzle
Across
  1. The chemical reaction that forms a polymer.
  2. The negatively charged electrode in electrolysis.
  3. The ability of an atom to attract electrons in a bond.
  4. The energy stored in chemical bonds
  5. The theory that explains how gases behave.
  6. The movement of electrons from one substance to another
  7. The most abundant gas in the atmosphere.
  8. The breaking of a chemical bond using water.
  9. The natural tendency of systems to move towards disorder.
  10. The pressure exerted by the atmosphere at sea level.
  11. The process of heat transfer through direct contact.
  12. A positively charged ion.
  13. A state of matter with definite volume but no fixed shape.
  14. The pH of a neutral solution
  15. A solution that resists changes in pH
  16. A reaction that occurs when substances combine with oxygen to release energy.
  17. A solid formed in a solution during a chemical reaction.
  18. A gas law that relates pressure and temperature
Down
  1. The number of protons in an atom.
  2. The ability of a substance to undergo a chemical change
  3. A phase change from gas to liquid.
  4. A measure of the amount of matter in an object.
  5. The law stating that mass is neither created nor destroyed in a chemical reaction
  6. A reaction where two substances combine to form one product.
  7. The type of bond formed by the transfer of electrons.
  8. The study of the composition, structure, properties, and reactions of matter.
  9. The force that holds atoms together in a molecule.
  10. The SI unit of energy
  11. The smallest particle of a chemical compound that retains its properties.
  12. A mixture with uniform composition throughout.

30 Clues: The SI unit of energy • A positively charged ion. • The pH of a neutral solution • The number of protons in an atom. • A phase change from gas to liquid. • The energy stored in chemical bonds • A solution that resists changes in pH • The most abundant gas in the atmosphere. • The theory that explains how gases behave. • The chemical reaction that forms a polymer. • ...

Chemistry Crossword. 2017-11-08

Chemistry Crossword. crossword puzzle
Across
  1. mass of one atom of an element calculated from the total number of protons, neutrons, and electrons of that atom
  2. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance\
  3. positively charged centre of an atom
  4. property that describes the physical appearance and composition of a substance
  5. an experiment in which all reactants and all products of a chemical reaction are accounted for
  6. a reaction that takes place when two or more substances react to form new substances
  7. group 2 elements in the periodic table
  8. dull, brittle element that does not conduct electricity
  9. amount of mass in a given volume of a substance
  10. group 18 elements in the periodic table
  11. homogeneous mixture
Down
  1. description of a solid that can be stretched into a long wire
  2. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  3. the smallest part of an element that is representative of that element
  4. number of protons in the nucleus of one atom of an element
  5. slow chemical change that occurs when oxygen in the air reacts with metal
  6. substance that reacts with another substance or substances in a chemical reaction to create a new substances with different properties
  7. metals group 1 elements in the periodic table
  8. principle that matter is not created or destroyed in a chemical reaction
  9. group of atoms acting as one
  10. change in the appearance or state of a substance that does not change the composition
  11. changing of state from a solid to a liquid
  12. chemical combination of two or more elements in a specific ratio
  13. an experiment in which one or more products of a chemical reaction can escape
  14. mass of a substance that can dissolve in a given amount of solvent to form a saturated solution at a given temperature

25 Clues: homogeneous mixture • group of atoms acting as one • positively charged centre of an atom • group 2 elements in the periodic table • group 18 elements in the periodic table • changing of state from a solid to a liquid • metals group 1 elements in the periodic table • amount of mass in a given volume of a substance • dull, brittle element that does not conduct electricity • ...

Chapter 6 Vocabulary 2024-03-08

Chapter 6 Vocabulary crossword puzzle
Across
  1. Organic nutrient that is required in small amounts for metabolic functions.
  2. Nonprotein assistant required by an enzyme in order to function.
  3. Chemical reaction that requires an input of energy.
  4. Energy in a system that is capable of performing work.
  5. Chemical reaction that releases energy.
  6. Series of linked reactions, beginning with a particular reactant and terminating with an end product.
  7. Nucleotide with two phosphate groups that can accept another phosphate group and become ATP.
  8. Reactions that occur simultaneously.
  9. Substance that participates in a reaction.
  10. Change in the shape of an enzyme's site that enhances the fit between the active site and its substrate(s).
  11. energy Stored energy in a potentially usable form, as a result of location or spacial arrangement.
  12. Chemical reaction in which smaller molecules (monomers) are combined to form larger molecules (polymers)
  13. Organic catalyst, usually a protein, that speeds a reaction in cells due to its particular shape.
  14. Nonprotein organic molecules that aids the action of the enzyme to which it is loosely bound.
  15. Means by which cells regulate enzyme activity.
Down
  1. Energy associated with motion.
  2. Energy that must be added in order for molecules to react with one another.
  3. Two laws explaining energy and its relationships and exchanges.
  4. Substance that forms as a result of a reaction.
  5. Nucleotide with three phosphate groups.
  6. Metabolic process that breaks down large molecules into smaller ones.
  7. Region of an enzyme where the substrate binds and where the chemical reactions occurs.
  8. The sum of the chemical reactions that occur in a cell.
  9. A paired set of chemical reactions in which one molecule gives up electrons (oxidized) while another molecule accepts electrons (reduced).
  10. Capacity to do work and bring about change.
  11. RNA molecule that functions as an enzyme that can catalyze chemical reactions.
  12. Measure of disorder or randomness in a system.

27 Clues: Energy associated with motion. • Reactions that occur simultaneously. • Chemical reaction that releases energy. • Nucleotide with three phosphate groups. • Substance that participates in a reaction. • Capacity to do work and bring about change. • Measure of disorder or randomness in a system. • Means by which cells regulate enzyme activity. • ...

First Quarter Wrap Up 2024-10-09

First Quarter Wrap Up crossword puzzle
Across
  1. a colorless, transparent gas that is more dense than air an extinguishes a flame
  2. any kind of stored energy
  3. the 118 different kinds of atoms (laid out in a table)
  4. the smallest functional unit of matter (for this class)
  5. any two or more atoms chemically bonded together
  6. an element that can create 4 chemical bonds in any direction
  7. energy stored in the position of an object (how high off the ground it has been raised)
  8. the blue crystalline chemical we used in our flameless heater reaction
Down
  1. the amount of matter within a given volume
  2. a chemical reaction that releases energy
  3. the energy of motion
  4. energy in the form of moving electrons
  5. the chemical responsible for the sour flavor (formula is C6H8O7)
  6. characteristics of materials defined by their molecules (ex: texture, odor, color, density)
  7. the general term used to name all of the stuff that makes up existence
  8. energy stored in the chemical bonds between atoms
  9. a chemical reaction that absorbs energy
  10. captured energy holding a molecule together
  11. "Matter cannot be created or destroyed, only transformed" is the Law of _________________.

19 Clues: the energy of motion • any kind of stored energy • energy in the form of moving electrons • a chemical reaction that absorbs energy • a chemical reaction that releases energy • the amount of matter within a given volume • captured energy holding a molecule together • any two or more atoms chemically bonded together • energy stored in the chemical bonds between atoms • ...

Unit 1 2022-12-07

Unit 1 crossword puzzle
Across
  1. and element that exist in more than 2 forms
  2. process of splitting something into fragments with the addition of water
  3. chemical reaction that absorbs energy
  4. attraction between a hydrogen atom and another
  5. made of hydrogen, oxygen, nitrogen, carbon, and phosphorus
  6. known as "water fearing"
  7. chemical reaction that release anergy
  8. process of using energy to create a large molecules from smaller molecules
  9. all chemical reactions within an organism to maintain life
Down
  1. made of carbon, hydrogen and oxygen
  2. made of nitrogen, carbon, hydrogen, oxygen
  3. molecules that combine from proteins
  4. same element with different number of neutrons in them
  5. known as "water loving
  6. attraction of molecules to the same substance
  7. made of carbon and hydrogen
  8. process of releasing energy to break large molecules into smaller molecules
  9. a substance which a enzyme acts during a chemical reaction
  10. molecule that transports chemical energy for metabolism
  11. attraction of different molecules of different substance

20 Clues: known as "water loving • known as "water fearing" • made of carbon and hydrogen • made of carbon, hydrogen and oxygen • molecules that combine from proteins • chemical reaction that absorbs energy • chemical reaction that release anergy • made of nitrogen, carbon, hydrogen, oxygen • and element that exist in more than 2 forms • attraction of molecules to the same substance • ...

Chemical Compounds 2016-01-16

Chemical Compounds crossword puzzle
Across
  1. A number or symbol multiplied with a variable.
  2. 2NaCl -> 2Na + Cl2
  3. The type of bond formed when Zn(NO3)2 is produced.
  4. Shape of BeH2.
  5. When an elements' charge is reduced in a chemical equation.
  6. Physical property.
  7. A lasting attraction between atoms.
  8. When a compounds' shape is NOT symmetrical.
  9. HCl + AgNO3 -> AgCl + HNO3
  10. Substance that is formed ion a chemical reaction.
  11. A useful guide for predicting products of metal displacement.
  12. Shape of BBr3.
  13. Substance that changes in a chemical reaction.
Down
  1. Shape of NCl3.
  2. Symbolic representation of a chemical reaction.
  3. when a compounds' shape IS symmetrical.
  4. C2H3O2 -> CO2 + H2O
  5. A single hydrogen atom is one of these.
  6. Zn + 2HCl -> ZnCl2 + H2
  7. When an elements' charge is increased in a chemical equation.
  8. Br2, I2, N2, Cl2, H2, O2, F2
  9. Shape of H2O.
  10. Shape of CH4.
  11. The type of bond formed in NaCl.
  12. Na + Cl -> NaCl
  13. Ag, Zn, Al are examples of this.
  14. Zncl2 is an example of this.

27 Clues: Shape of H2O. • Shape of CH4. • Shape of NCl3. • Shape of BeH2. • Shape of BBr3. • Na + Cl -> NaCl • 2NaCl -> 2Na + Cl2 • Physical property. • C2H3O2 -> CO2 + H2O • Zn + 2HCl -> ZnCl2 + H2 • HCl + AgNO3 -> AgCl + HNO3 • Br2, I2, N2, Cl2, H2, O2, F2 • Zncl2 is an example of this. • The type of bond formed in NaCl. • Ag, Zn, Al are examples of this. • A lasting attraction between atoms. • ...