chemical reaction Crossword Puzzles

Types of Chemical Reactions, DEEPAK 10N 2024-04-30

Types of Chemical Reactions, DEEPAK 10N crossword puzzle
Across
  1. chemical reaction in which heat is released
  2. process involves gain of oxygen atoms or loss of hydrogen
  3. chemical decomposition caused by heat
  4. substance that increases the rate of the chemical reaction
  5. chemical reaction in which heat is absorbed
  6. substances in right hand side of chemical equations
Down
  1. a single substance breaks down to give two or more substances
  2. substances that undergo chemical change in the reaction
  3. atoms of a compound is replaced by another atom
  4. two or more substances combine to form single substance
  5. this type of decomposition reaction is used in black and white photograph
  6. solution in which solvent is water
  7. reactions in which insoluble salts are formed
  8. process involves loss of oxygen atoms or gain of hydrogen
  9. solution of this is used for whitewashing

15 Clues: solution in which solvent is water • chemical decomposition caused by heat • solution of this is used for whitewashing • chemical reaction in which heat is released • chemical reaction in which heat is absorbed • reactions in which insoluble salts are formed • atoms of a compound is replaced by another atom • substances in right hand side of chemical equations • ...

CConley Chapter 13 2016-10-14

CConley Chapter 13 crossword puzzle
Across
  1. A chemical that donates a hydrogen ion
  2. Energy transfer from reactants to surroundings
  3. A reaction in which a single compound breaks down to form two or more simple substance
  4. A chemical reaction occurs when a substance reacts with oxygen
  5. When reaction and it's reverse action at the same rate
  6. Energy is transferred to reactants from surrounding
  7. A substance that undergoes a chemical change
  8. The amount of energy required to pull two bonds atoms a part
Down
  1. When a change in a chemical equilibrium is opposed until a new equilibrium is found
  2. Any substance that increases the rate of a chemical reaction
  3. A substance that is the result of the chemical change
  4. A reaction in which two or more substance combine to form a new compounds
  5. Change that takes place when two or more substance
  6. A chemical that accepts a hydrogen ion
  7. What is needed to start the process to break bonds or start a combustion reaction

15 Clues: A chemical that donates a hydrogen ion • A chemical that accepts a hydrogen ion • A substance that undergoes a chemical change • Energy transfer from reactants to surroundings • Change that takes place when two or more substance • Energy is transferred to reactants from surrounding • A substance that is the result of the chemical change • ...

Chemistry Vocabulary 2024-03-19

Chemistry Vocabulary crossword puzzle
Across
  1. A chemical reaction that releases heat energy.
  2. A chemical reaction that absorbs heat energy.
  3. The new substances formed in a chemical reaction.
  4. A short way to show what elements are in a compound and how many of each there are.
  5. Two or more substances that join together.
  6. The substances you start with in a chemical reaction.
  7. Bonds formed by the attraction between positively and negatively charged ions
  8. Things that make up everything around us.
Down
  1. When substances change into different ones.
  2. Bonds formed when atoms share electrons.
  3. Small numbers written to show how many atoms of each element are in a compound
  4. Natural materials are things that come from nature, like wood or cotton. Synthetic materials are made by people, like plastic or nylon.
  5. Heat energy.
  6. The idea that matter cannot be created or destroyed in a chemical reaction, only rearranged.
  7. Substances that make chemical reactions happen faster.
  8. Pure substances made up of only one type of atom.
  9. Numbers written in front of chemical formulas to balance equations.

17 Clues: Heat energy. • Bonds formed when atoms share electrons. • Things that make up everything around us. • Two or more substances that join together. • When substances change into different ones. • A chemical reaction that absorbs heat energy. • A chemical reaction that releases heat energy. • The new substances formed in a chemical reaction. • ...

chemistry 2015-11-19

chemistry crossword puzzle
Across
  1. measures percent of hydrogen ions
  2. substance that helps a chemical reaction to proceed more quickly
  3. pure substance that can not be broken down
  4. the mass of the atom
  5. cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
  6. chemical combination of two or more elements in a specific ratio
  7. a reaction that takes place when two
  8. substance that reacts with another substance or substances in a chemical reaction to create new substances with different properties
  9. a atom that has either gained or lost electrons
  10. neutral particle in the nucleus of an atom
  11. catalyst involved in chemical reactions in living thing things
  12. compound that dissolves in water to form a solution with a ph higher than 7
Down
  1. new substance produced in a chemical reaction between reactants
  2. substance that can be made into long wire
  3. group 18 elements in the periodic table the most and unreactive elements
  4. positively charged particle in the nucleus
  5. chemical reaction that occurs when oxygen reacts when oxygen reacts with a substance to form a new substance and give of energy
  6. device for producing electricity from chemical or solar energy
  7. group of atoms acting as one
  8. invisible negatively charged particle that orbits the nucleus of a atom
  9. creation of electrical circuit
  10. conductor through which electric current enters or leaves a device or material
  11. number of protons in the nucleus
  12. slow chemical change that occurs when oxygen in the air reacts with a metal
  13. Products of reaction that can escape

25 Clues: the mass of the atom • group of atoms acting as one • creation of electrical circuit • number of protons in the nucleus • measures percent of hydrogen ions • a reaction that takes place when two • Products of reaction that can escape • substance that can be made into long wire • positively charged particle in the nucleus • pure substance that can not be broken down • ...

physical science 2023-12-11

physical science crossword puzzle
Across
  1. to quickly refer to information about an element, like atomic mass and chemical symbol
  2. releases heat in chemical reaction
  3. the material involved in the change is structurally the same before and after the change.
  4. a substance that takes part in and undergoes change during a reaction
  5. a subatomic particle with a positive electrical charge
  6. on the left side on the periodic table
  7. a negatively charged subatomic particle that can be either bound to an atom or free
  8. a chemical process in which a substance reacts rapidly with oxygen and gives off heat.
  9. bond when pairs of electrons are shared by atoms.
  10. absorbs heat in chemical reaction
Down
  1. the process of equating one thing with another.
  2. a chemical reaction where two reactant ionic compounds exchange
  3. the complete transfer of valence electron(s) between atoms.
  4. the state or process of rotting decay.
  5. a change of materials into another, new materials with different properties and one or more than one new substances are formed
  6. the production of chemical compounds by reaction from simpler materials.
  7. a reaction in which one element replaces a similar element in a compound.
  8. a thing or person that is the result of an action or process.
  9. subatomic particles found inside the nucleus of every atom.
  10. the state or power of being reactive or the degree to which a thing is reactive.
  11. degree of consistency measured by the quantity of mass per unit volume
  12. an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
  13. one of two or more species of atoms of a chemical element with the same atomic number and position in the periodic table

23 Clues: absorbs heat in chemical reaction • releases heat in chemical reaction • the state or process of rotting decay. • on the left side on the periodic table • the process of equating one thing with another. • bond when pairs of electrons are shared by atoms. • a subatomic particle with a positive electrical charge • ...

Complete and incomplete combustion 2024-05-15

Complete and incomplete combustion crossword puzzle
Across
  1. A solid that forms from a solution during a chemical reaction.
  2. The gain of electrons by a molecule, atom, or ion.
  3. The sticking together of particles of the same substance.
  4. The transition of a substance directly from the solid phase to the gas phase without passing through the intermediate liquid phase.
  5. The sticking together of particles of different substances.
  6. The loss of electrons by a molecule, atom, or ion.
  7. A substance that is formed as a result of a chemical reaction.
  8. The process of using electricity to drive a non-spontaneous chemical reaction.
Down
  1. A substance that increases the rate of a chemical reaction without being consumed in the process.
  2. A substance that takes part in and undergoes change during a reaction.
  3. A chemical reaction that absorbs energy from its surroundings.
  4. A state in which forward and reverse reactions occur at equal rates, resulting in no net change in the concentrations of reactants and products.
  5. A chemical reaction that releases energy in the form of heat.
  6. The decomposition of materials at high temperatures in an inert atmosphere.
  7. The chemical breakdown of a compound due to reaction with water.

15 Clues: The gain of electrons by a molecule, atom, or ion. • The loss of electrons by a molecule, atom, or ion. • The sticking together of particles of the same substance. • The sticking together of particles of different substances. • A chemical reaction that releases energy in the form of heat. • A solid that forms from a solution during a chemical reaction. • ...

Organic Chem Vocab 2022-01-26

Organic Chem Vocab crossword puzzle
Across
  1. an aromatic hydrocarbon
  2. 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.
  3. an atom or a molecule that in chemical reaction seeks an atom or molecule containing an electron pair available for bonding.
  4. a substance that enters into and is altered in the course of a chemical reaction.
  5. show the movement of single electrons during the breaking of the bond.
  6. a type of chemical reaction in which two molecules are combined to form a single molecule
  7. hydrocarbons that have double or triple covalent bonds between adjacent carbon atoms.
  8. An organic compound in which all the carbon atoms are connected by single bonds.
  9. compounds that contain exactly the same number of atoms
  10. one in which two or more organic compounds have the same molecular formulas but different structures.
  11. an organic reaction where two or more molecules combine to form a larger one
  12. a molecular fragment that departs with a pair of electrons in heterolytic bond cleavage.
Down
  1. a chemical reaction during which one functional group in a chemical compound is replaced by another functional group.
  2. a two-stage reaction process of an addition reaction followed by an elimination reaction.
  3. the simplest whole number ratio of atoms present in a compound.
  4. hydrocarbons that are the open chain compounds and also closed chains.
  5. a graphic representation of the molecular structure, showing how the atoms are possibly arranged in the real three-dimensional space.
  6. the process of cleaving/breaking a covalent bond where one previously bonded species takes both original bonding electrons from the other species.
  7. consists of the chemical symbols for the constituent elements followed by numeric subscripts describing the number of atoms of each element present in the molecule.
  8. an electron-rich molecule that can form covalent bonds by donating electrons to electron-poor sites.
  9. used in mechanisms to show the various electron pairs moving around

21 Clues: an aromatic hydrocarbon • compounds that contain exactly the same number of atoms • the simplest whole number ratio of atoms present in a compound. • used in mechanisms to show the various electron pairs moving around • hydrocarbons that are the open chain compounds and also closed chains. • show the movement of single electrons during the breaking of the bond. • ...

your mom 2023-12-11

your mom crossword puzzle
Across
  1. a chemical reaction in which one element replaces another in a compound.
  2. a mathematical sentence that has two equal sides separated by an equal sign.
  3. the process by which dead organic substances are broken down into simpler organic or inorganic matter
  4. Chemical reactions that absorb (or use) energy overall
  5. a system for arranging the chemical elements.
  6. the appearance or form of the matter changes but the kind of matter in the substance does not.
  7. formed by the equal sharing of electrons from both participating atoms
Down
  1. the production of chemical compounds by reaction from simpler materials
  2. a reaction in which energy is released in the form of light or heat.
  3. occur when parts of two ionic compounds are exchanged, making two new compounds
  4. one of the first chemical reactions intentionally controlled by humans.
  5. a chemical element (such as boron, carbon, or nitrogen) that lacks the characteristics of a metal.
  6. the starting materials in a reaction that undergo a chemical change to form a product.
  7. opaque, lustrous elements that are good conductors of heat and electricity.
  8. any change that causes a new substance to be formed.
  9. a subatomic particle with a positive electrical charge
  10. a measure of how readily a substance undergoes a chemical reaction.
  11. the measurement of how tightly a material is packed together.
  12. Ionic bonds result from the attraction between oppositely charged ions.

19 Clues: a system for arranging the chemical elements. • any change that causes a new substance to be formed. • Chemical reactions that absorb (or use) energy overall • a subatomic particle with a positive electrical charge • the measurement of how tightly a material is packed together. • a measure of how readily a substance undergoes a chemical reaction. • ...

Reactions 2014-04-14

Reactions crossword puzzle
Across
  1. chemical bond formed when atoms share three pairs of electrons
  2. chemical reaction that breaks down into simpler products
  3. ion that is made of more than one atom
  4. Force that holds atoms together
  5. anything that has mass and occupies space
  6. Number in a chemical formula that tells the number of atoms in a molecule or the ration of elements in a compound
  7. part of solution present in a lesser amount and dissolved by the solvent
  8. solid that forms from a solution during chemical reaction.
Down
  1. substance formed as result of chemical reaction
  2. mixture of two or more elements, one of which is metal
  3. substance that doesn't change identity
  4. Group of atoms that become electrically charged
  5. Compound that consists of positive and negative ions
  6. orderly, three dimensional pattern of ions or atoms in a solid
  7. study of the properties of matter
  8. system in which matter can enter from or escape to the surrounding
  9. chemical bond formed when atoms share two pairs of electrons
  10. substance that undergoes change in a chemical reaction
  11. covalent bond in which electrons are shared equally
  12. attraction between oppositely charged ions

20 Clues: Force that holds atoms together • study of the properties of matter • substance that doesn't change identity • ion that is made of more than one atom • anything that has mass and occupies space • attraction between oppositely charged ions • substance formed as result of chemical reaction • Group of atoms that become electrically charged • ...

Unit 5 Vocabulary to Know 2023-02-22

Unit 5 Vocabulary to Know crossword puzzle
Across
  1. the path or orbit electrons follow around the nucleus of an atom
  2. a combination of substances that can be physically separated from one another
  3. the substances that are formed during a chemical reaction; in a chemical reaction the arrows point toward the product
  4. tending to cause corrosion
  5. a chemical combination of two or more elements
  6. interaction between molecules that causes a chemical change, converting an existing substance into a new substance
Down
  1. not human-made
  2. a pure substance that cannot be broken down into simpler substances by chemical reactions
  3. made by humans
  4. chemical reaction that gives off heat energy
  5. a chemical reaction that absorbs heat energy
  6. a group of atoms held together by chemical bonds
  7. the substances present before a chemical reaction occurs; in a chemical reaction the arrow usually points away from the reactant(s)

13 Clues: not human-made • made by humans • tending to cause corrosion • chemical reaction that gives off heat energy • a chemical reaction that absorbs heat energy • a chemical combination of two or more elements • a group of atoms held together by chemical bonds • the path or orbit electrons follow around the nucleus of an atom • ...

8th Grade Chemistry 2013-06-12

8th Grade Chemistry crossword puzzle
Across
  1. negatively charged particles in atoms
  2. joining of atoms to form new substances
  3. smallest particle of matter and cannot be separated
  4. pure substance that can't be separated into simpler substances
  5. chemical and physical properties of elements are periodic functions of their atomic number
  6. center of the atom in a positively charged region
  7. a change a substance undergoes that changes its properties
  8. representation of an object or system
  9. vertical columns on the periodic table
  10. regular repeating pattern
  11. force of attraction that holds two atoms together
  12. good conductors, malleable, ductile, and shiny
  13. horizontal rows on the periodic table
Down
  1. description of a chemical reaction using chemical symbols and formulas
  2. notation for a compound that uses chemical symbols and numbers
  3. starting materials in a chemical reaction
  4. outermost energy level in an atom
  5. poor conductors, dull
  6. ending substance in a chemical reaction
  7. semi conductors, have properties of metals and nonmetals

20 Clues: poor conductors, dull • regular repeating pattern • outermost energy level in an atom • negatively charged particles in atoms • representation of an object or system • horizontal rows on the periodic table • vertical columns on the periodic table • joining of atoms to form new substances • ending substance in a chemical reaction • starting materials in a chemical reaction • ...

your mom 2023-12-11

your mom crossword puzzle
Across
  1. a chemical reaction in which one element replaces another in a compound.
  2. a mathematical sentence that has two equal sides separated by an equal sign.
  3. the process by which dead organic substances are broken down into simpler organic or inorganic matter
  4. Chemical reactions that absorb (or use) energy overall
  5. a system for arranging the chemical elements.
  6. the appearance or form of the matter changes but the kind of matter in the substance does not.
  7. formed by the equal sharing of electrons from both participating atoms
Down
  1. the production of chemical compounds by reaction from simpler materials
  2. a reaction in which energy is released in the form of light or heat.
  3. occur when parts of two ionic compounds are exchanged, making two new compounds
  4. one of the first chemical reactions intentionally controlled by humans.
  5. a chemical element (such as boron, carbon, or nitrogen) that lacks the characteristics of a metal.
  6. the starting materials in a reaction that undergo a chemical change to form a product.
  7. opaque, lustrous elements that are good conductors of heat and electricity.
  8. any change that causes a new substance to be formed.
  9. a subatomic particle with a positive electrical charge
  10. a measure of how readily a substance undergoes a chemical reaction.
  11. the measurement of how tightly a material is packed together.
  12. Ionic bonds result from the attraction between oppositely charged ions.

19 Clues: a system for arranging the chemical elements. • any change that causes a new substance to be formed. • Chemical reactions that absorb (or use) energy overall • a subatomic particle with a positive electrical charge • the measurement of how tightly a material is packed together. • a measure of how readily a substance undergoes a chemical reaction. • ...

U11 Vocabulary-Reactions & Bonding 2026-03-24

U11 Vocabulary-Reactions & Bonding crossword puzzle
Across
  1. A substance that speeds up the rate of a chemical reaction without being consumed or permanently changed.
  2. A solid in which the particles are arranged in a regular, repeating three-dimensional pattern.
  3. A combination of chemical symbols and subscripts that shows the types and numbers of atoms in a compound.
  4. A chemical reaction in which the positive ions of two ionic compounds exchange places to form two new compounds.
  5. The numbers placed in front of chemical formulas in a balanced equation to show the relative amounts of reactants and products.
  6. A chemical reaction in which a substance reacts rapidly with oxygen, producing heat and light (usually a hydrocarbon + O₂ → CO₂ + H₂O).
  7. A symbolic representation of a chemical reaction using formulas and symbols for reactants and products.
  8. The force of attraction between positively charged metal ions and the surrounding sea of mobile valence electrons.
  9. The energy stored in the chemical bonds of substances; released or absorbed during chemical reactions.
Down
  1. The mass in grams of one mole of a substance; numerically equal to the atomic or formula mass in amu.
  2. A chemical bond formed by the sharing of one or more pairs of electrons between two atoms.
  3. A chemical reaction in which a single compound breaks down into two or more simpler substances.
  4. A chemical reaction that absorbs heat energy from the surroundings (feels cold; ΔH is positive).
  5. A chemical bond formed by the electrostatic attraction between oppositely charged ions (usually a metal and a nonmetal).
  6. A chemical reaction that releases heat energy to the surroundings (feels hot; ΔH is negative).
  7. The force of attraction that holds atoms or ions together in a compound.
  8. A diagram that shows the valence electrons of an atom or molecule as dots around the symbol (also called a Lewis dot structure).
  9. A negatively charged ion formed when an atom or group of atoms gains one or more electrons.
  10. A positively charged ion formed when an atom or group of atoms loses one or more electrons.
  11. The smallest unit of a covalent compound that retains the properties of that compound; a group of atoms held together by covalent bonds.
  12. An atom or group of atoms that has a positive or negative charge due to the loss or gain of electrons.
  13. A mixture of two or more metals (or a metal and a nonmetal) that has metallic properties.
  14. The state in which the forward and reverse rates of a reversible chemical reaction are equal, so concentrations remain constant.
  15. The SI unit for amount of substance; contains 6.02 × 10²³ particles (Avogadro’s number).

24 Clues: The force of attraction that holds atoms or ions together in a compound. • The SI unit for amount of substance; contains 6.02 × 10²³ particles (Avogadro’s number). • A mixture of two or more metals (or a metal and a nonmetal) that has metallic properties. • A chemical bond formed by the sharing of one or more pairs of electrons between two atoms. • ...

24 vocab 2022-10-16

24 vocab crossword puzzle
Across
  1. An atom of group of atoms that has a positive or negative electric charge; forms by gaining or losing electrons.
  2. a scientific law stating that during a chemical reaction matter is not created or destroyed
  3. A usually reversible change in the physical properties of a substance, as size and shape.
  4. a combination of two or more substances. That do not combine chemically but remain the same individual substances
  5. a vertical column in the periodic table of elements that have similar properties.
  6. a substance made up of two or more different types of atoms bonded together
  7. A neutral particle located in an atom’s nucleus.
  8. a substance that cannot be broken down into a simpler substance by ordinary chemical changes
  9. The number before a chemical formula indicating how many molecules are involved in a chemical reaction.
  10. The total number of protons in an atom’s nucleus.
  11. A negatively charged particle located outside of an atom’s nucleus about 2000 times smaller than either a proton or neutron.
  12. A substance formed by a chemical reaction; made by the rearrangement of atoms and bonds in reactants.
Down
  1. The total number of protons and neutrons in an atom’s nucleus.
  2. a substance that is not uniform throughout.
  3. A solid substance that forms as a result of a chemical reaction between chemicals in two liquids.
  4. a substance that is evenly spread throughout particles not distinguishable
  5. An atom of one element that has a different number of neutrons than another atom of the same element.
  6. a substance that is present at the beginning of a chemical reaction takes. Part in the reaction and is changed into a new substance
  7. A change of one substance into another substance.
  8. a horizontal row in the periodic table of the elements that have similar properties.
  9. A group of atoms that are held together by covalent bonds so that they move together.
  10. A positively charged particle located in an atom’s nucleus.
  11. The number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound.
  12. A substance that increases the rate of a chemical reaction but is not consumed by the reaction.

24 Clues: a substance that is not uniform throughout. • A neutral particle located in an atom’s nucleus. • A change of one substance into another substance. • The total number of protons in an atom’s nucleus. • A positively charged particle located in an atom’s nucleus. • The total number of protons and neutrons in an atom’s nucleus. • ...

Characteristics of Chemical Reactions 2021-03-16

Characteristics of Chemical Reactions crossword puzzle
Across
  1. rearrangement of atoms to produce something new
  2. substance with unique chemical and physical properties
  3. matter includes mass, length and volume
  4. observed or measured without changing substance
  5. group of atoms bonded together
  6. atoms rearrange during chemical change
  7. insoluble solid formed from chemical reaction
  8. natural substance undergo a chemical process
  9. one or more substances change to make different
Down
  1. property depends on type of matter not amount
  2. substance produced in a chemical reaction
  3. substance that changes during a reaction
  4. basic unit of matter
  5. physical or chemical characteristics of matter
  6. single substance
  7. large amounts

16 Clues: large amounts • single substance • basic unit of matter • group of atoms bonded together • atoms rearrange during chemical change • matter includes mass, length and volume • substance that changes during a reaction • substance produced in a chemical reaction • natural substance undergo a chemical process • property depends on type of matter not amount • ...

Just for Fun 2019-05-02

Just for Fun crossword puzzle
Across
  1. Non-metals that are not reactive
  2. A substance that cannot be broken down into simpler substances by chemical means
  3. When atoms of two or more different non-metals combined, a _____ compound is formed
  4. Any substance with a pH of 7 when it is in aqueous solution
  5. The horizontal rows of a periodic table are called _______
  6. A type of chemical reaction where two elements combine to form a compound
  7. A positively charged ion
  8. The number of protons in an atom of an element
  9. The substance(s) that is/are produced during a chemical reaction
  10. A negatively charged ion
  11. A substance with a pH of less than 7 when it is in aqueous solution
Down
  1. A substance with a pH of greater than 7 when it is in aqueous solution
  2. A chemical reaction between an acid and a base that produces water and salt
  3. Metal elements that have high atomic mass
  4. Anything that has mass and volume
  5. A suspension of small, solid particles formed during a chemical reaction
  6. A substance that take part in and undergoes change during a chemical reaction
  7. A combination of pure substances is called a _______
  8. A pure substance made from two or more elements that are combined together chemically
  9. A bond formed when valence electrons are shared

20 Clues: A positively charged ion • A negatively charged ion • Non-metals that are not reactive • Anything that has mass and volume • Metal elements that have high atomic mass • The number of protons in an atom of an element • A bond formed when valence electrons are shared • A combination of pure substances is called a _______ • ...

Science 2017-05-18

Science crossword puzzle
Across
  1. a simply sugar produce by photosynthesis
  2. a series of chemical reaction
  3. chemical that take part in chemical reaction
  4. type of acid
  5. type of gas
  6. endothermic reaction that takes place
  7. written description
  8. rain
  9. chemical produce in chemical reaction
Down
  1. boom
  2. digestion
  3. type of gas
  4. the movement of chemicals

13 Clues: boom • rain • digestion • type of gas • type of gas • type of acid • written description • the movement of chemicals • a series of chemical reaction • endothermic reaction that takes place • chemical produce in chemical reaction • a simply sugar produce by photosynthesis • chemical that take part in chemical reaction

Chemical Reactions and Enzymes 2022-11-15

Chemical Reactions and Enzymes crossword puzzle
Across
  1. will speed up the chemical reaction
  2. element or compounds produced in a chemical reaction
  3. changes one set of chemicals into another
  4. less is needed in a enzyme chemical reaction
  5. amino acid protein, speeds chemical reaction with specific substrate
Down
  1. energy needed to start a chemical reaction
  2. enzyme breaks down lactose in milk
  3. large molecule formed by many monomers
  4. reactant that engage in a enzyme speeded up reaction
  5. product of the iron (Fe)oxygen (O)
  6. elements that enter a chemical reaction
  7. small molecule, builds a large polymer

12 Clues: enzyme breaks down lactose in milk • product of the iron (Fe)oxygen (O) • will speed up the chemical reaction • large molecule formed by many monomers • small molecule, builds a large polymer • elements that enter a chemical reaction • changes one set of chemicals into another • energy needed to start a chemical reaction • less is needed in a enzyme chemical reaction • ...

Just for Fun 2019-05-02

Just for Fun crossword puzzle
Across
  1. Any substance with a pH of 7 when it is in aqueous solution
  2. Anything that has mass and volume
  3. A substance that take part in and undergoes change during a chemical reaction
  4. A combination of pure substances is called a _______
  5. A substance with a pH of less than 7 when it is in aqueous solution
  6. A suspension of small, solid particles formed during a chemical reaction
  7. A substance with a pH of greater than 7 when it is in aqueous solution
  8. Metal elements that have high atomic mass
  9. The number of protons in an atom of an element
Down
  1. A bond formed when valence electrons are shared
  2. The substance(s) that is/are produced during a chemical reaction
  3. When atoms of two or more different non-metals combined, a _____ compound is formed
  4. A type of chemical reaction where two elements combine to form a compound
  5. A negatively charged ion
  6. A chemical reaction between an acid and a base that produces water and salt
  7. A positively charged ion
  8. Non-metals that are not reactive
  9. The horizontal rows of a periodic table are called _______
  10. A pure substance made from two or more elements that are combined together chemically
  11. A substance that cannot be broken down into simpler substances by chemical means

20 Clues: A negatively charged ion • A positively charged ion • Non-metals that are not reactive • Anything that has mass and volume • Metal elements that have high atomic mass • The number of protons in an atom of an element • A bond formed when valence electrons are shared • A combination of pure substances is called a _______ • ...

Unit 3 Crossword 2014-11-12

Unit 3 Crossword crossword puzzle
Across
  1. the interaction between oxygen molecules and all the different substances they may contact
  2. Coefficients are the numbers placed before the reactants in a chemical equation
  3. absorbs energy in the form of heat
  4. Equation consists of the chemical formulas of the reactants and the chemical formula of the products
  5. he concentration of reactants and products participating in a chemical reaction exhibit no net change over time
  6. undergoes change
  7. one element replaces another element in a compound
  8. cause a substance to be deposited in solid from a solution
  9. a substance that increases the rate of a chemical reaction
Down
  1. Rate the measure of change in concentration of the reactants
  2. any chemical reaction that involves the gaining of electrons
  3. production of chemical compounds that react from simpler materials
  4. process of burning something
  5. Result of change
  6. release of energy in the form of heat
  7. cations and anions of elements switch places
  8. decay; the process of decay

17 Clues: Result of change • undergoes change • decay; the process of decay • process of burning something • absorbs energy in the form of heat • release of energy in the form of heat • cations and anions of elements switch places • one element replaces another element in a compound • cause a substance to be deposited in solid from a solution • ...

William Smithmyer - Chapter 13 2016-10-12

William Smithmyer - Chapter 13 crossword puzzle
Across
  1. A rapid exothermic oxidation-reduction reaction between a material and molecular oxygen.
  2. A measure of the acidity of a solution; equal to the negative logarithm of the hydronium ion concentration.
  3. Description of a solution in which the hydroxide ion concentration is higher than the hydronium ion concentration; also sometimes called alkaline.
  4. A measure of how quickly the concentration of products in a chemical reaction increases or the concentration of reactants decreases.
  5. The reacting substances in a chemical reaction.
  6. Description of a chemical reaction in which there is a net absorption of energy.
  7. A substance that donates a hydrogen.
  8. A polyatomic ion made by removing a proton from a water molecule.
Down
  1. The minimum energy required in order for a chemical reaction to proceed.
  2. Any substance that increases the rate of a chemical reaction without itself being consumed by the reaction.
  3. Description of a solution in which the hydronium ion concentration is higher than the hydroxide ion concentration.
  4. A polyatomic ion made by adding a proton to a water molecule.
  5. Description of a chemical reaction in which there is a net release of energy.
  6. The new materials formed in a chemical reaction.
  7. Description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration.

15 Clues: A substance that donates a hydrogen. • The reacting substances in a chemical reaction. • The new materials formed in a chemical reaction. • A polyatomic ion made by adding a proton to a water molecule. • A polyatomic ion made by removing a proton from a water molecule. • The minimum energy required in order for a chemical reaction to proceed. • ...

Chemical Equation and Reaction - By Shehran 10-L 2024-05-13

Chemical Equation and Reaction - By Shehran 10-L crossword puzzle
Across
  1. A chemical reaction in which two compounds exchange positive ions and form two new compounds
  2. Reactions in which oxidation and reduction take place together
  3. The spoiling of food caused by the oxidation of fats and oils present in it
  4. Deterioration of metals by the reaction of water and oxygen with the formation of an oxide layer on the metal surface
  5. A reaction that releases energy in the form of light or heat
  6. When two or more reactants combine with each other to form a new product
  7. A process in which a chemical substance changes because of the addition of oxygen
Down
  1. A reaction in which heat is absorbed from the surroundings
  2. A reaction in which a compound breaks down into two or more simpler substances
  3. A reaction in which a more reactive element displaces a less reactive element from its compound
  4. A substance(chemical) which slows down oxidation
  5. A substance that undergoes change in a chemical reaction
  6. Equations with simply the chemical formulas of the products and reactants, no mention of state, and no atom balancing on either side of the equation
  7. The insoluble solid which settles down after the completion of the chemical reaction
  8. Substance that speeds up a chemical reaction

15 Clues: Substance that speeds up a chemical reaction • A substance(chemical) which slows down oxidation • A substance that undergoes change in a chemical reaction • A reaction in which heat is absorbed from the surroundings • A reaction that releases energy in the form of light or heat • Reactions in which oxidation and reduction take place together • ...

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

Unit B - Matter and Chemical Change. crossword puzzle
Across
  1. a vertical column of elements in the periodic table
  2. change of state form a gas to a liquid
  3. the smallest part of an element that is representative of that element a neutral particle made up of a nucleus containing protons and neutrons
  4. description of how a substance interacts with other substance such as acids chemical properties are observable only when a chemical change occurs to form new substances
  5. change that result when two or more substance react to create a different substance or substance the new substances have completely different properties from the original ones.
  6. reaction chemical reactions that gives off energy
  7. group two elements in the periodic table , not including hydrogen, the most reactive of the metals
  8. a material that electric charge can move through easily
Down
  1. slow chemical reaction that occurs when oxygen hits metal
  2. Group 1 elements in the periodic table not including hydrogen the most reactive non metals
  3. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and gives off energy
  4. catalyst involved in all living things
  5. mass of atom of an element calculated from the total number of protons neutrons and electrons.
  6. chemical combination of two or more elements in specific ration
  7. change of state from gas to a solid.
  8. number of protons in the nucleus of one atom of an element
  9. substance that helps a chemical reaction to proceed quickly
  10. a reaction that takes place between two elements
  11. reaction chemical reaction that absorbs energy
  12. combination of symbols that represent a compound” the formula identifies the elements into the compound the formula identifies the element s in the compound and the amount of each element
  13. of mass principle that matter is not created or destroyed. It can not be destroyed or created, the mass is always equal.
  14. ability of a substance to conduct electricity or heat
  15. amount of mass in a given volume of a substance

23 Clues: change of state from gas to a solid. • change of state form a gas to a liquid • catalyst involved in all living things • reaction chemical reaction that absorbs energy • amount of mass in a given volume of a substance • a reaction that takes place between two elements • reaction chemical reactions that gives off energy • ...

Chemical Change 2014-05-12

Chemical Change crossword puzzle
Across
  1. change/A change that results in a new substances being formed
  2. chemical reaction that involves a combination of oxygen
  3. or phase of a substance
  4. process that involves oxygen, like burning a flame
  5. properties/properties that can be observe by your 5 senses
  6. chemical reaction that involves oxygen to produce a flame
  7. substance that you begin with in a chemical reaction
  8. chemical reaction that wears away a metal
Down
  1. a metal by covering it with a more reactive metal that will corrode first
  2. properties/properties that can describe how a substances
  3. substance that starts or speeds up a chemical reaction
  4. substance that is produced with in a chemical reaction
  5. change/A change that does not form a new substances but may form different states
  6. corrosion of iron
  7. catalyst for living things

15 Clues: corrosion of iron • or phase of a substance • catalyst for living things • chemical reaction that wears away a metal • process that involves oxygen, like burning a flame • substance that you begin with in a chemical reaction • substance that starts or speeds up a chemical reaction • substance that is produced with in a chemical reaction • ...

Science Crossword 2013-11-14

Science Crossword crossword puzzle
Across
  1. cause corrosion
  2. a container consisting of one or more cells
  3. a scientific procedure undertaken to make a discovery
  4. a substance with particular chemical properties
  5. the process of burning something
  6. a chemical reaction in which an acid and a base interact with the formation of a salt
  7. releasing heat
  8. the branch of science concerned with the substances
Down
  1. a chemical reaction that occurs between an acid and a base
  2. substances studied in chemistry
  3. indicates the state or level of something
  4. able to be dissolved
  5. absorbing heat
  6. incapable of being dissolved
  7. reacts with acids to form salts
  8. the smallest particle of a chemical element
  9. a substance that undergoes change during a reaction
  10. a particular kind of matter
  11. table a table of the chemical elements
  12. scale a scale from 0 to 14 of the acidity or alkalinity

20 Clues: absorbing heat • releasing heat • cause corrosion • able to be dissolved • a particular kind of matter • incapable of being dissolved • substances studied in chemistry • reacts with acids to form salts • the process of burning something • table a table of the chemical elements • indicates the state or level of something • a container consisting of one or more cells • ...

Chemistry Vocabulary 2025-04-25

Chemistry Vocabulary crossword puzzle
Across
  1. A simple part in matter
  2. Together,in group
  3. Atoms that are together
  4. Makes up matter
  5. Form of energy that moves around
  6. Measurement of hot and cold
  7. Lot of energy breaking bonds
  8. Stuff, takes up space
  9. Measurement of what's inside something
  10. Result of reaction
  11. Particle in matter
Down
  1. Matter changing
  2. Creates new materials
  3. Characteristics of a substance
  4. Something that can be measured
  5. A link with particles
  6. Blend of substances
  7. The amount in stuff
  8. Reaction to chemical
  9. Heat being released
  10. Combined elements
  11. Response from chemicals

22 Clues: Matter changing • Makes up matter • Together,in group • Combined elements • Result of reaction • Particle in matter • Blend of substances • The amount in stuff • Heat being released • Reaction to chemical • Creates new materials • A link with particles • Stuff, takes up space • A simple part in matter • Atoms that are together • Response from chemicals • Measurement of hot and cold • ...

Haley Nowak- chapter 13 2016-10-12

Haley Nowak- chapter 13 crossword puzzle
Across
  1. a substance that donates hydrogen ions
  2. a measure of the acidity of a solution equal to the negative logarithm of the hydronium ion concentration
  3. the process by which a reactant gains one or more electrons
  4. description of a solution in which the hydronium ion concentration is equal to the hydroxide ion concentration
  5. the minimum energy required in order for a chemical reaction to proceed
  6. description of a chemical reaction in which there is a net absorption of energy
  7. any substance that increases the rate of a chemical reaction without itself being consumed by the reaction
  8. the process by which a reactant loses one or more electrons
Down
  1. the reacting substances in a chemical reaction
  2. a polyatomic ion made by adding a hydrogen ion to a water molecule
  3. a substance that accepts hydrogen ions
  4. description of a chemical reaction in which there is a net release of energy
  5. a polyatomic ion made by removing a hydrogen ion from a water molecule
  6. the new materials formed in a chemical reaction
  7. a rapid exothermic oxidation- reduction reaction between a material and a molecular oxygen

15 Clues: 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 gains one or more electrons • the process by which a reactant loses one or more electrons • ...

Chemistry vocabulary 2022-10-12

Chemistry vocabulary crossword puzzle
Across
  1. The number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound.
  2. A substance made up of two or more different types of atoms bonded together.
  3. An atom of one element that has a different number of neutrons than another atom of the same element.
  4. A negatively charged particle located outside of an atom’s nucleus about 2000 times smaller than either a proton or neutron.
  5. number The total number of protons in an atom’s nucleus.
  6. A combination of two or more substances that do not combine chemically, but remain the same individual substances.
  7. The number before a chemical formula indicating how many molecules are involved in a chemical reaction.
  8. change A usually reversible change in the physical properties of a substance, as size and shape.
  9. of conservation of mass A scientific law stating that during a chemical reaction, matter is not created nor destroyed.
  10. A substance that is present at the beginning of a chemical reaction, takes part in the reaction, and is changed into a new substance.
  11. A substance that is not uniform throughout.
  12. A group of atoms that are held together by covalent bonds so that they move together.
  13. A neutral particle located in an atom’s nucleus.
Down
  1. A positively charged particle located in an atom’s nucleus.
  2. A substance formed by a chemical reaction; made by the rearrangement of atoms and bonds in reactants.
  3. mass number The total number of protons and neutrons in an atom’s nucleus.
  4. A substance that cannot be broken down into a simpler substance by ordinary chemical changes.
  5. An atom of group of atoms that has a positive or negative electric charge; forms by gaining or losing electrons.
  6. A solid substance that forms as a result of a chemical reaction between chemicals in two liquids.
  7. A substance that increases the rate of a chemical reaction but is not consumed by the reaction.
  8. A substance that is evenly spread throughout. Particles not distinguishable.
  9. a vertical column in the periodic table of the elements that have similar properties.
  10. a horizontal row in the periodic table of the elements that have varying properties.
  11. change A change of one substance into another substance.

24 Clues: A substance that is not uniform throughout. • A neutral particle located in an atom’s nucleus. • change A change of one substance into another substance. • number The total number of protons in an atom’s nucleus. • A positively charged particle located in an atom’s nucleus. • mass number The total number of protons and neutrons in an atom’s nucleus. • ...

Chemistry puzzle 2022-10-13

Chemistry puzzle crossword puzzle
Across
  1. change: A change of one substance into another substance.
  2. The number written slightly below and to the right of a chemical symbol that shows how many atoms of an element are in a compound.
  3. A negatively charged particle located outside of an atom’s nucleus about 2000 times smaller than either a proton or neutron.
  4. A substance that is not uniform throughout.
  5. A solid substance that forms as a result of a chemical reaction between chemicals in two liquids.
  6. A neutral particle located in an atom’s nucleus.
  7. of conservation of mass: A scientific law stating that during a chemical reaction, matter is not created nor destroyed.
  8. change: A usually reversible change in the physical properties of a substance, as size and shape.
  9. A substance that is present at the beginning of a chemical reaction, takes part in the reaction, and is changed into a new substance.
  10. A combination of two or more substances that do not combine chemically, but remain the same individual substances.
Down
  1. mass number: The total number of protons and neutrons in an atom’s nucleus.
  2. A group of atoms that are held together by covalent bonds so that they move together.
  3. An atom of one element that has a different number of neutrons than another atom of the same element.
  4. A substance that is evenly spread throughout. Particles not distinguishable.
  5. a vertical column in the periodic table of the elements that have similar properties.
  6. a horizontal row in the periodic table of the elements that have varying properties.
  7. A substance made up of two or more different types of atoms bonded together.
  8. The number before a chemical formula indicating how many molecules are involved in a chemical reaction.
  9. A substance formed by a chemical reaction; made by the rearrangement of atoms and bonds in reactants.
  10. An atom of group of atoms that has a positive or negative electric charge; forms by gaining or losing electrons.
  11. number: The total number of protons in an atom’s nucleus.
  12. A positively charged particle located in an atom’s nucleus.
  13. A substance that increases the rate of a chemical reaction but is not consumed by the reaction.
  14. A substance that cannot be broken down into a simpler substance by ordinary chemical changes.

24 Clues: A substance that is not uniform throughout. • A neutral particle located in an atom’s nucleus. • change: A change of one substance into another substance. • number: The total number of protons in an atom’s nucleus. • A positively charged particle located in an atom’s nucleus. • mass number: The total number of protons and neutrons in an atom’s nucleus. • ...

unit 2 Crossword Lab -Chris 2017-11-12

unit 2 Crossword Lab -Chris crossword puzzle
Across
  1. substance: that helps a chemical reaction to proceed more quickly
  2. amount of mass in a given volume of a substance
  3. ability of a substance to conduct electricity or heat
  4. reaction: chemical reaction that absorbs heat
  5. reaction: chemical reaction that releases heat
  6. mass:mass of one atom of an element calculated from the total number of protons,neutrons, and electrons of that atom; measured in atomic mass units (amu)
  7. solution: a solution in which water is the solvent
  8. group 1 elements in the periodic table, not including hydrogen; the most reactive of the metals
  9. change of state from a liquid to a gas
  10. catalyst involved in the chemical reaction of living things
  11. slow chemical change that occurs when oxygen in the air reacts with a metal
  12. process in which molecules move from an area of higher concentration to one of lower concentration
  13. shells: orbit of electrons around the nucleus of an atom
  14. 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. pure substance that cannot be broken down into other substances
  2. group 17 elements in the periodic table; most reactive non metals
  3. 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
  4. of mass principle that matter is not created or destroyed in a chemical reaction; the mass of the products always equals the mass of the reactants
  5. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and give off energy
  6. invisible negatively charged particle that orbits the nucleus of an atom
  7. a material that electric charge can move through easily
  8. chemical combination of two or more elements in a specific ratio
  9. change: 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
  10. vertical column of elements in the periodic table; elements in a family all have similar chemical properties; also called a family

24 Clues: change of state from a liquid to a gas • reaction: chemical reaction that absorbs heat • reaction: chemical reaction that releases heat • amount of mass in a given volume of a substance • solution: a solution in which water is the solvent • ability of a substance to conduct electricity or heat • a material that electric charge can move through easily • ...

Chemical Reaction Vocabulary 2013-12-16

Chemical Reaction Vocabulary crossword puzzle
Across
  1. states that mass can't be created or destroyed in chemical or physical changes.
  2. a representation of a chemical reaction that uses symbols to show the relationship.
  3. the smallest amount of energy that need to react.
  4. any compound that increases the number of hydronium ion when dissolved.
  5. process in which 1 or more substances change to make to make 1 or more new substances.
Down
  1. a combination of chemical symbols and numbers to represent a substance.
  2. substance that changes color in the presence of a acid or a base.
  3. chemical reaction a that requires heat.
  4. a reaction in which heat is released.
  5. any compound that increases the number of hydronium ion when dissolved in water.
  6. states energy can't be destroyed or created.
  7. substance that slows down or stops a chemical reaction.
  8. a substance that speeds up a reaction without being permanently changed.

13 Clues: a reaction in which heat is released. • chemical reaction a that requires heat. • states energy can't be destroyed or created. • the smallest amount of energy that need to react. • substance that slows down or stops a chemical reaction. • substance that changes color in the presence of a acid or a base. • ...

Chemical Reaction Vocabulary 2022-02-23

Chemical Reaction Vocabulary crossword puzzle
Across
  1. Letters and numbers showing the atoms to make a substance
  2. process in which atoms rearrange to form new substances
  3. Tiny pieces of matter that everything is made of
  4. Something that helps us understand by making it easier to see
  5. Negative pieces of an atom, outside the nucleus
  6. Something that is made of atoms
Down
  1. Positive pieces of an atom, in nucleus
  2. The relative size of things
  3. a starting substance that is part of a chemical reaction
  4. A group of atoms joined together in a particular way
  5. No charge, in nucleus
  6. Something that can be observed in a substance
  7. an ending substance that is made during a chemical reaction

13 Clues: No charge, in nucleus • The relative size of things • Something that is made of atoms • Positive pieces of an atom, in nucleus • Something that can be observed in a substance • Negative pieces of an atom, outside the nucleus • Tiny pieces of matter that everything is made of • A group of atoms joined together in a particular way • ...

Chemical Reaction Vocabulary 2026-04-22

Chemical Reaction Vocabulary crossword puzzle
Across
  1. A + B yields AB
  2. symbolic representation of a reaction
  3. substance that increases the reaction rate
  4. AB yields A + B
  5. insoluble solid from a liquid
  6. pressed permanently
  7. reaction generates carbon dioxide and water
Down
  1. physical change that absorbs heat
  2. result of reaction
  3. whole number in front of formula
  4. small number to the right of an element
  5. homogeneous mixture-water is the solvent
  6. substance at start

13 Clues: A + B yields AB • AB yields A + B • result of reaction • substance at start • pressed permanently • insoluble solid from a liquid • whole number in front of formula • physical change that absorbs heat • symbolic representation of a reaction • small number to the right of an element • homogeneous mixture-water is the solvent • substance that increases the reaction rate • ...

Law Of Conservation of Mass and Balancing Equations 2025-04-29

Law Of Conservation of Mass and Balancing Equations crossword puzzle
Across
  1. The basic units of matter and the defining structure of elements.
  2. Substances formed as a result of a chemical reaction.
  3. The amount of matter in an object.
  4. The principle that mass is neither created nor destroyed during a chemical reaction.
  5. A chemical equation in which the number of atoms for each element is the same on both sides.
  6. Pure substances consisting of only one type of atom.
  7. Relating to chemistry or the interactions of substances as studied in chemistry.
  8. A small number written below and to the right of a chemical symbol in a formula, showing how many atoms of that element are present.
Down
  1. The process by which one or more substances change to produce new substances.
  2. True or False: Balancing equations proves the Law of Conservation of Mass.
  3. Anything that has mass and takes up space.
  4. Substances that start a chemical reaction.
  5. A rule that describes a consistent natural phenomenon (in science, such as the Law of Conservation of Mass).
  6. In a chemical reaction, the mass of the reactants is ___ to the mass of the products.
  7. A number placed in front of a chemical formula to show how many molecules are involved.
  8. A symbolic representation of a chemical reaction.

16 Clues: The amount of matter in an object. • Anything that has mass and takes up space. • Substances that start a chemical reaction. • A symbolic representation of a chemical reaction. • Pure substances consisting of only one type of atom. • Substances formed as a result of a chemical reaction. • The basic units of matter and the defining structure of elements. • ...

Reaction Terms 2015-02-25

Reaction Terms crossword puzzle
Across
  1. of Conservation of Mass states that for any system closed to all transfers of matter and energy (both of which have mass), the mass of the system must remain constant over time, as system mass cannot change quantity if it is not added or removed.
  2. A material that increases the rate of a chemical reaction by lowering the activation energy
  3. A biological catalyst that lowers the activation energy of reactions in cells
  4. science) A substance formed as a result of a chemical reaction
  5. A number placed in front of a chemical formula in an equation that indicates how many atoms or molecules of each reactant and product are involved in a reaction
  6. The amount of one material dissolved in a given amount of another material
  7. A number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound
Down
  1. A reaction that absorbs energy in the form of heat
  2. A substance that enters into a chemical reaction
  3. equation A short, easy way to show a chemical reaction, using symbols instead of words
  4. A solid that forms from a solution during a chemical reaction
  5. A reaction that releases energy in the form of heat
  6. energy The minimum amount of energy needed to start a chemical reaction
  7. A material that decreases the rate of a reaction

14 Clues: A substance that enters into a chemical reaction • A material that decreases the rate of a reaction • A reaction that absorbs energy in the form of heat • A reaction that releases energy in the form of heat • A solid that forms from a solution during a chemical reaction • science) A substance formed as a result of a chemical reaction • ...

Science crossword 2024-02-17

Science crossword crossword puzzle
Across
  1. - Resulting substances after a chemical reaction
  2. - Process in plants convert carbon dioxide and water into glucose and oxygen using sunlight as energy.
  3. - the process of rapid chemical reaction between a fuel and oxygen
  4. - Easily ignited substance
  5. - Alteration in the form or state of matter without changing its chemical composition; no new substances are formed.
  6. - Contains oxygen for combustion
  7. - Essential gas for combustion
  8. - Measure of the intensity of heat
  9. - Released during combustion
  10. - Visible manifestation of combustion
Down
  1. - Product of cellular respiration
  2. - Process where chemical substances transform into new substances through the breaking and forming of chemical bonds.
  3. - Gaseous phase of a substance
  4. - Transformation in which substances undergo chemical reactions, resulting in the formation of new substances with different properties.
  5. - Visible, rapid combustion
  6. - Resulting substances after a chemical reaction
  7. - Source of energy for use and storage at a cellular level
  8. - Initial substances in a chemical reaction
  9. - Substance consisting of only one type of atom.
  10. - Initiates combustion

20 Clues: - Initiates combustion • - Easily ignited substance • - Visible, rapid combustion • - Released during combustion • - Gaseous phase of a substance • - Essential gas for combustion • - Contains oxygen for combustion • - Product of cellular respiration • - Measure of the intensity of heat • - Visible manifestation of combustion • - Initial substances in a chemical reaction • ...

Physical Science Crossword Puzzle 2025-03-30

Physical Science Crossword Puzzle crossword puzzle
Across
  1. Characteristics that you can observe or measure without changing the identity of the matter.
  2. Chemical reaction where more energy is needed to start the reaction.
  3. Mass per unit volume of a substance.
  4. Stored energy due to the interactions between particles.
  5. A group of atoms that are held together by chemical bonds and act as a unit.
  6. Chemical reaction where more energy is released during the reaction.
  7. The amount of thermal energy transferred from regions of higher temperature to regions of lower temperatures.
  8. Property which occurs when a substance reacts with another substance, changing it into a new substance.
  9. Characteristic of matter that can be observed as it changes to a different type of matter.
Down
  1. A group of chemical symbols and numbers that represent the element and the number of atoms of each element that makes up a compound.
  2. The substance produced by the chemical reaction.
  3. Energy in motion.
  4. The measure of the average kinetic energy of the particles in a material.
  5. The starting substance in a chemical reaction.
  6. A substance made of only one type of atom.
  7. The ability of a type of matter to burn easily.
  8. The amount of space a substance takes up.
  9. Matter with a composition that is always the same.
  10. The amount of matter in a substance.
  11. A small particle that is the building block of matter.
  12. Matter changes into other substances with different chemical and physical properties.
  13. Type of substance that occurs when atoms of two or more different elements are bonded together.

22 Clues: Energy in motion. • Mass per unit volume of a substance. • The amount of matter in a substance. • The amount of space a substance takes up. • A substance made of only one type of atom. • The starting substance in a chemical reaction. • The ability of a type of matter to burn easily. • The substance produced by the chemical reaction. • ...

CConley Chapter 13 2016-10-14

CConley Chapter 13 crossword puzzle
Across
  1. What is needed to start the process to break bonds or start a combustion reaction
  2. A substance that is the result of the chemical change
  3. The amount of energy required to pull two bonds atoms a part
  4. When a change in a chemical equilibrium is opposed until a new equilibrium is found
  5. Energy transfer from reactants to surroundings
  6. A chemical reaction occurs when a substance reacts with oxygen
  7. Energy is transferred to reactants from surrounding
Down
  1. A reaction in which a single compound breaks down to form two or more simple substance
  2. Change that takes place when two or more substance
  3. A substance that undergoes a chemical change
  4. Any substance that increases the rate of a chemical reaction
  5. A reaction in which two or more substance combine to form a new compounds
  6. A chemical that accepts a hydrogen ion
  7. When reaction and it's reverse action at the same rate
  8. A chemical that donates a hydrogen ion

15 Clues: A chemical that accepts a hydrogen ion • A chemical that donates a hydrogen ion • A substance that undergoes a chemical change • Energy transfer from reactants to surroundings • Change that takes place when two or more substance • Energy is transferred to reactants from surrounding • A substance that is the result of the chemical change • ...

7th Grade Science Crossword 2013-12-16

7th Grade Science Crossword crossword puzzle
Across
  1. first person to discover atoms
  2. the changes when an element is put together or pulled apart
  3. a substance that is made up of only one kind of a atom
  4. states that in a chemical reaction,matter is neither created nor destroyed
  5. the vertical column
  6. the substance you end with
  7. alters the form of a substance
  8. not cuttable
  9. the horizontal row are called periods are labeled
  10. negative charge in the nucleus
  11. neutral in the nucleus
  12. center of an atom
Down
  1. a characteristics that enables a substance to undergo a chemical change
  2. the substance you start out with
  3. smallest unit of a element
  4. two or more types of elements chemically combined
  5. positive charge in the nucleus
  6. the number of protons & neutrons found in the nucleus
  7. chemical reaction also involves energy
  8. when more then one atom chemically combined

20 Clues: not cuttable • center of an atom • the vertical column • neutral in the nucleus • smallest unit of a element • the substance you end with • first person to discover atoms • alters the form of a substance • positive charge in the nucleus • negative charge in the nucleus • the substance you start out with • chemical reaction also involves energy • ...

Chemical Reaction Crossword Puzzle 2020-04-23

Chemical Reaction Crossword Puzzle crossword puzzle
Across
  1. Table salt is an example of
  2. Two or more reactants combine to form a single
  3. Burning coal is an example of
  4. One reactant breaks down into two or more products
  5. Water is an example of
  6. Any substance that is consumed or used up during the reaction
  7. Smallest particle in a chemical element or compound
  8. Iron and water combining to make rust is an example of
  9. Copper is an example of
  10. A substance that speeds up a chemical reaction
  11. Consisting of one atom
Down
  1. Water is a ____ of methane and oxygen
  2. How many atoms or molecules an element has
  3. A number used to multiply a variable
  4. Complete transfer valence electrons between atoms
  5. One element replaces another in a single compound
  6. Hydrogen chloride is an example of
  7. A brick is an example of
  8. Oxygen is an example of
  9. Saltwater is an example of

20 Clues: Water is an example of • Consisting of one atom • Oxygen is an example of • Copper is an example of • A brick is an example of • Saltwater is an example of • Table salt is an example of • Burning coal is an example of • Hydrogen chloride is an example of • A number used to multiply a variable • Water is a ____ of methane and oxygen • How many atoms or molecules an element has • ...

Chemical Reaction Crossword Puzzle 2024-01-26

Chemical Reaction Crossword Puzzle crossword puzzle
Across
  1. emits radiation
  2. elements number of element on the table
  3. undergoes change
  4. on the top right of the metalloids
  5. group two on the periodic table
  6. two or more reactants combine
  7. group one on the periodic table
  8. bond when an atom is given up
  9. Compound Breaks down
  10. organized table of all of the elements
  11. element is substituted
  12. group 13-16 on the periodic table
  13. mass of an element
  14. Burning reaction
Down
  1. group 17 on the period table
  2. atoms ability to attract electrons to itself
  3. reactants that are left out of the product
  4. Acid is reacted
  5. in the D-block
  6. electrons in the outermost shell
  7. bond when an atom is shared
  8. number of atoms is equal on the two sides of the equation
  9. made from reactants
  10. chemical equation for water
  11. have eight valence electrons
  12. Two substances react by exchanging ions
  13. symbolic representation of a chemical reaction
  14. row of elements on the pericolumntable
  15. column of elements on the periodic table
  16. the periodic consists of a lot of these
  17. chemical equation for carbon dioxide

31 Clues: in the D-block • emits radiation • Acid is reacted • undergoes change • Burning reaction • mass of an element • made from reactants • Compound Breaks down • element is substituted • bond when an atom is shared • chemical equation for water • group 17 on the period table • have eight valence electrons • two or more reactants combine • bond when an atom is given up • ...

Quantities in Chemical Reaction 2022-06-09

Quantities in Chemical Reaction crossword puzzle
Across
  1. The "Law of ______ Proportion."
  2. A reactant that is limit to how much product made.
  3. The yield given found during a live experiment.
  4. Mass of crucible/lid is 10.500g, mass of MgI2 x H20 and crucible\lid is 12.128g, mass of MgI2 (anhydrous) and crucible/lid is 11.572g.
  5. The formula that is the true or actual ratio of atoms in compound.
  6. First step in stoichiometry is a _________ equation.
  7. The given yield you calculated.
Down
  1. Having the relationship between the quantities of reactants to products.
  2. hydroxide Identify the limiting reactant when 7.81 g HCl reacts wtih 5.24 g NaOH to produce NaCl and H2O.
  3. BaCl2 x H20 is called an ______.
  4. contains no water
  5. A ceramic or metal container that holds substances to be melted.
  6. The number of a famous man.
  7. Identify the limiting reactant when 4.68 g of Fe reacts with 2.88 g of S to produce FeS.
  8. Moles x Molar mass=
  9. Atomic mass unit
  10. The formula represented in simplest whole number ratio of atoms in compound.
  11. Use the ______ ratio to find the unknown moles.
  12. The substance that is not used up fully in a reaction.
  13. The molecular weight of a substance expressed in grams.

20 Clues: Atomic mass unit • contains no water • Moles x Molar mass= • The number of a famous man. • The "Law of ______ Proportion." • The given yield you calculated. • BaCl2 x H20 is called an ______. • The yield given found during a live experiment. • Use the ______ ratio to find the unknown moles. • A reactant that is limit to how much product made. • ...

Chemistry Crossword 2024-04-16

Chemistry Crossword crossword puzzle
Across
  1. A number that indicates the charge of an ion
  2. A shape of molecule where there are 4 electron domains around the central atom
  3. A shape of molecule where there are 2 electron domains around the central atom
  4. A number that indicates how many moles of a substance are present in a balanced chemical reaction
  5. A solution in which a solid is dissolved in water
  6. The bottom point of a wave
  7. A solid that forms from a reaction between two aqueous solutions
  8. The top point of a wave
  9. The height of the wave
  10. A region on the central atom of a molecule where electrons are most likely to be found (bonding and nonbonding electrons)
  11. The unit of particles for an element
  12. A type of chemical reaction in which a single substance breaks down into multiple substances
  13. Electrons follow these pathways around the nucleus of the atom
  14. A type of chemical reaction that involves a single element and an ionic compound where the single element switches places with the like element in the compound
  15. The amount of moles in volume of solution
  16. A type of reaction where a hydrocarbon reacts with oxygen gas to produce carbon dioxide and water vapor
  17. Substances that are destroyed by a chemical change in a reaction
  18. A type of chemical reaction in which multiple substances form a single product
Down
  1. A number that indicates how many atoms are present in a molecule
  2. A chemical substance that releases OH- ions in aqueous solutions
  3. The acronym that stands for Valence Shell Electron Pair Repulsion Theory
  4. The distance between two consecutive points on a wave
  5. The name of the scientist that discovered the number of particles present in one mole of substance
  6. The rate of occurrence of a wave
  7. A chemical reaction in which an acid and base react with one another to produce water and a salt solution
  8. A type of reaction that involves two ionic compounds where the cations switch places
  9. The arrangement of electrons in orbitals around the nucleus
  10. The unit of particles for a covalent compound
  11. Reducing the number of moles of solute per unit volume of solution
  12. Substances that are formed by a chemical change in a reaction
  13. A chemical substance that releases H+ ions in aqueous solutions
  14. The breakdown of ions in an aqueous solution

32 Clues: The height of the wave • The top point of a wave • The bottom point of a wave • The rate of occurrence of a wave • The unit of particles for an element • The amount of moles in volume of solution • A number that indicates the charge of an ion • The breakdown of ions in an aqueous solution • The unit of particles for a covalent compound • ...

Characteristics of Chemical Reactions 2018-11-19

Characteristics of Chemical Reactions crossword puzzle
Across
  1. the number of atoms that go into a reaction is the __________ as the number of atoms that come out.
  2. the substances that come out of a reaction
  3. a solid forming out of two liquids
  4. characteristics used to describe substances
  5. We know a chemical reaction happened on an atomic level when the atoms ______________.
  6. a manmade material made from natural resources
  7. formed when two or more atoms chemically combine
  8. smallest part of a substance
Down
  1. the substances that go into a chemical reaction
  2. when oxygen atoms combine with iron atoms, this forms
  3. after a chemical reaction the properties of the substances will be ___________.
  4. an unexpected change in this is a sign of a chemical reaction
  5. during a reaction, this may increase or decrease
  6. this is produced when vinegar and baking soda combine, one sign of a reaction
  7. cracking a glow stick will produce this sign of a reaction

15 Clues: smallest part of a substance • a solid forming out of two liquids • the substances that come out of a reaction • characteristics used to describe substances • a manmade material made from natural resources • the substances that go into a chemical reaction • during a reaction, this may increase or decrease • formed when two or more atoms chemically combine • ...

TYPES OF CHEMICAL REACTION 2025-04-28

TYPES OF CHEMICAL REACTION crossword puzzle
Across
  1. Substance that undergoes oxidation in a redox reaction
  2. Decomposition reaction initiated by sunligh
  3. A solid that forms and settles out of a liquid mixture
  4. A reaction that releases energy in the form of heat
  5. A reaction in which a compound breaks down into simpler substances
  6. A solid that forms and settles out of a liquid mixture
  7. A reaction that absorbs energy in the form of heat
  8. A type of reaction where two or more substances combine to form one
Down
  1. A shorthand way to represent a chemical reaction using symbols and formulas
  2. The starting materials in a chemical reaction
  3. DECOMPOSITION reaction initiated by heat
  4. Change in color, formation of gas, and temperature change indicate this has happened
  5. A type of reaction where two compounds exchange their ions
  6. Reaction involving both oxidation and reduction
  7. The reaction where a substance gains oxygen
  8. OXIDE The chemical name for quicklime

16 Clues: OXIDE The chemical name for quicklime • DECOMPOSITION reaction initiated by heat • Decomposition reaction initiated by sunligh • The reaction where a substance gains oxygen • The starting materials in a chemical reaction • Reaction involving both oxidation and reduction • A reaction that absorbs energy in the form of heat • ...

7th Grade Science Crossword 2013-12-16

7th Grade Science Crossword crossword puzzle
Across
  1. smallest unit of a element
  2. first person to discover atoms
  3. the vertical column
  4. the horizontal row are called periods are labeled
  5. negative charge in the nucleus
  6. when more then one atom chemically combined
  7. two or more types of elements chemically combined
  8. alters the form of a substance
  9. a characteristics that enables a substance to undergo a chemical change
  10. the substance you start out with
  11. neutral in the nucleus
Down
  1. the substance you end with
  2. states that in a chemical reaction,matter is neither created nor destroyed
  3. the number of protons & neutrons found in the nucleus
  4. chemical reaction also involves energy
  5. the changes when an element is put together or pulled apart
  6. a substance that is made up of only one kind of a atom
  7. not cuttable
  8. positive charge in the nucleus
  9. center of an atom

20 Clues: not cuttable • center of an atom • the vertical column • neutral in the nucleus • the substance you end with • smallest unit of a element • first person to discover atoms • negative charge in the nucleus • alters the form of a substance • positive charge in the nucleus • the substance you start out with • chemical reaction also involves energy • ...

Properties of Matter 2022-09-23

Properties of Matter crossword puzzle
Across
  1. chemical combinations of elements
  2. formed from a chemical change of iron
  3. a physical property
  4. has mass and volume
  5. definite volume definite shape
  6. solid formed when two solutions mix
  7. a chemical change when a fuel reacts with oxygen
  8. smallest unit of a compound
  9. amount of matter in a substance
  10. substances formed in a chemical reaction
  11. physical property ratio of mass to volume
  12. a property that describes how a substance reacts with another
  13. mixture with visible parts
Down
  1. elements that exist as a pair
  2. a force due to gravity
  3. mixture that is uniformly mixed
  4. definite volume variable shape
  5. a property that can be determined without a reaction
  6. physical combination of pure substances
  7. cannot be broken down into simpler substance
  8. variable shape and volume
  9. elements and compounds one set of properties
  10. substances that go into a chemical reaction
  11. smallest unit of an element

24 Clues: a physical property • has mass and volume • a force due to gravity • variable shape and volume • mixture with visible parts • smallest unit of a compound • smallest unit of an element • elements that exist as a pair • definite volume variable shape • definite volume definite shape • mixture that is uniformly mixed • amount of matter in a substance • chemical combinations of elements • ...

Mole 2023-03-28

Mole crossword puzzle
Across
  1. The reactant that is present in greater amount than is necessary for a reaction to occur.
  2. A number written below and to the right of a chemical symbol in a chemical formula, indicating the number of atoms of that element in a molecule.
  3. The reactant that is completely consumed in a reaction and determines the amount of product that can be formed.
  4. Italian scientist who is credited with introducing the concept of the mole.
  5. The process of changing from one unit of measurement to another.
  6. A number in front of a chemical formula that indicates the number of molecules or atoms involved in a reaction.
  7. The study of matter and the changes it undergoes.
  8. A molecule made up of hydrogen and water with a molar mass of 18.02 g/mol.
  9. A set of symbols and numbers used to represent a molecule or compound.
  10. The amount of product obtained in a reaction.
Down
  1. A type of reaction that breaks a compound down into smaller components.
  2. A way of expressing a quantity as a fraction of 100.
  3. Has a molar mass of 16.00 g/mol.
  4. The substances that are produced in a chemical reaction.
  5. The unit of mass commonly used in chemistry.
  6. 6.02x10^23
  7. The substances that participate in a chemical reaction.
  8. The branch of chemistry that deals with the calculation of quantities of substances involved in chemical reactions.

18 Clues: 6.02x10^23 • Has a molar mass of 16.00 g/mol. • The unit of mass commonly used in chemistry. • The amount of product obtained in a reaction. • The study of matter and the changes it undergoes. • A way of expressing a quantity as a fraction of 100. • The substances that participate in a chemical reaction. • The substances that are produced in a chemical reaction. • ...

⚡ Reaction Detectives ⚡ 2026-05-11

⚡ Reaction Detectives ⚡ crossword puzzle
Across
  1. Another clue that a chemical change happened
  2. What happens during a chemical reaction
  3. Substance made during a chemical reaction
  4. Two or more substances combined together
  5. A visible sign that may change during a reaction
  6. Place where experiments are performed
  7. A state of matter often formed in bubbling reactions
  8. A test done to learn something new
Down
  1. Protective eyewear used in science labs
  2. Important rule to follow during experiments
  3. The study of the world around us
  4. Substance present before a chemical reaction starts
  5. A sign that gas may be forming in a reaction
  6. Something reactions can absorb or release
  7. Energy that can be released during a reaction

15 Clues: The study of the world around us • A test done to learn something new • Place where experiments are performed • Protective eyewear used in science labs • What happens during a chemical reaction • Two or more substances combined together • Substance made during a chemical reaction • Something reactions can absorb or release • Important rule to follow during experiments • ...

Chemistry Crossword 2022-03-21

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

26 Clues: Burning a marshmallow • Squishing a marshmallow • A reaction is which energy is absorbed • Matter is not allowed to enter or leave • Anything that has mass and takes up space • The study of matter and how matter changes • The amount of a substance in a given volume • A solid that forms from a specific solution • A material that releases energy when it burns • ...

Biology Chapter 4 Vocabulary 2025-10-07

Biology Chapter 4 Vocabulary crossword puzzle
Across
  1. electron transport _____ (ETC) A series of proteins in the inner mitochondrial membrane that transfer electrons and help make ATP.
  2. A molecule that carries high-energy electrons from earlier stages of cellular respiration to the electron transport chain.
  3. ________ energy – The energy input required to get a chemical reaction started.
  4. _____ cycle, A series of chemical reactions in the mitochondria that break down pyruvate to produce carbon dioxide, NADH, and ATP.
  5. A chemical reaction that absorbs energy
  6. A chemical reaction that releases energy.
  7. A process that makes ATP without oxygen by breaking down glucose after glycolysis.
  8. The main energy-carrying molecule of the cell; it stores and releases energy for cellular processes.
  9. The green pigment in plants that captures light energy for photosynthesis.
  10. ______ cycle – The set of chemical reactions in the stroma that use carbon dioxide and energy (from ATP and NADPH) to make glucose.
  11. The set of chemical reactions that build larger molecules from smaller ones and require energy.
  12. A substance that speeds up a chemical reaction without being used up in the process; enzymes are biological catalysts.
  13. A flattened membrane sac inside chloroplasts where the light-dependent reactions of photosynthesis occur.
  14. cellular _______, The process by which cells break down glucose to store its chemical potential energy in ATP.
Down
  1. The process by which plants, algae, and some bacteria use sunlight to make glucose from carbon dioxide and water.
  2. A three-carbon molecule formed at the end of glycolysis; it is used in the next stages of cellular respiration.
  3. The molecule that an enzyme acts on in a chemical reaction.
  4. ATP ______ – An enzyme in the inner mitochondrial membrane that uses the flow of hydrogen ions to make ATP.
  5. The enzyme that captures carbon dioxide in the first step of the Calvin cycle.
  6. The fluid-filled space around the thylakoids inside a chloroplast; where the Calvin cycle happens.
  7. Chemical ______ energy – The stored energy in the bonds of molecules that can be released during a chemical reaction.
  8. The set of chemical reactions that break down large molecules into smaller ones and release energy.
  9. oxidative ______ – The final stage of cellular respiration where most ATP is made, using energy from electrons carried by NADH transferred along the electron transport chain.
  10. The molecule or molecules made at the end of a chemical reaction.
  11. The first step of cellular respiration in which six-carbon glucose is broken down into two three-carbon pyruvates, producing ATP and NADH.
  12. A protein that catalyzes a chemical reaction.
  13. The inner space of the mitochondrion where the Krebs cycle takes place.
  14. Requiring oxygen to occur; for example, aerobic respiration needs oxygen.
  15. A particle or packet of light energy that powers the light-dependent reactions of photosynthesis.

29 Clues: A chemical reaction that absorbs energy • A chemical reaction that releases energy. • A protein that catalyzes a chemical reaction. • The molecule that an enzyme acts on in a chemical reaction. • The molecule or molecules made at the end of a chemical reaction. • The inner space of the mitochondrion where the Krebs cycle takes place. • ...

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

Unit B - Matter and Chemical Change. crossword puzzle
Across
  1. catalyst involved in all living things
  2. change of state from gas to a solid.
  3. a material that electric charge can move through easily
  4. the smallest part of an element that is representative of that element a neutral particle made up of a nucleus containing protons and neutrons
  5. reaction chemical reaction that absorbs energy
  6. substance that helps a chemical reaction to proceed quickly
  7. change that result when two or more substance react to create a different substance or substance the new substances have completely different properties from the original ones.
  8. slow chemical reaction that occurs when oxygen hits metal
  9. description of how a substance interacts with other substance such as acids chemical properties are observable only when a chemical change occurs to form new substances
  10. a vertical column of elements in the periodic table
  11. number of protons in the nucleus of one atom of an element
  12. a reaction that takes place between two elements
  13. mass of atom of an element calculated from the total number of protons neutrons and electrons.
  14. Group 1 elements in the periodic table not including hydrogen the most reactive non metals
Down
  1. reaction chemical reactions that gives off energy
  2. chemical reaction that occurs when oxygen reacts with a substance to form a new substance and gives off energy
  3. ability of a substance to conduct electricity or heat
  4. amount of mass in a given volume of a substance
  5. change of state form a gas to a liquid
  6. group two elements in the periodic table , not including hydrogen, the most reactive of the metals
  7. of mass principle that matter is not created or destroyed. It can not be destroyed or created, the mass is always equal.
  8. chemical combination of two or more elements in specific ration
  9. combination of symbols that represent a compound” the formula identifies the elements into the compound the formula identifies the element s in the compound and the amount of each element

23 Clues: change of state from gas to a solid. • catalyst involved in all living things • change of state form a gas to a liquid • reaction chemical reaction that absorbs energy • amount of mass in a given volume of a substance • a reaction that takes place between two elements • reaction chemical reactions that gives off energy • ...

Mike Barros Crossword 2017-02-27

Mike Barros Crossword crossword puzzle
Across
  1. the symbolic representation of a chemical reaction in the form of symbols and formulae
  2. type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound
  3. chemical decomposition produced by passing an electric current through a liquid or solution containing ions.
  4. 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)
  5. the action or fact of making a specified thing smaller or less in amount, degree, or size.
  6. the state or process of rotting; decay.
  7. a substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
  8. combination or composition, in particular.
  9. of or containing water, typically as a solvent or medium.
Down
  1. cause (an event or situation, typically one that is bad or undesirable) to happen suddenly, unexpectedly, or prematurely.
  2. the process or result of oxidizing or being oxidized.
  3. article or substance that is manufactured
  4. 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
  5. amount of product obtained in a chemical reaction
  6. 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
  7. consisting of two atoms
  8. a substance that takes part in and undergoes change during a reaction
  9. a numerical or constant quantity placed before and multiplying the variable in an algebraic expression
  10. the process of burning something.

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

Chemistry Unit Test Review 2014-03-09

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

18 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 ______ • When put into water, acids release _________ ions. • This type of paper indicator gives the specific pH • Limestone is a base and will __________ with an acid. • ...

Chemistry Unit Test Review 2014-03-09

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

18 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 ______ • When put into water, acids release _________ ions. • This type of paper indicator gives the specific pH • Limestone is a base and will __________ with an acid. • ...

Reaction Types 2016-10-23

Reaction Types crossword puzzle
Across
  1. Chemicals used in order to created a chemical reaction.
  2. A dark coating of silver sulfide that appears on silver when it reacts with sulfur in the atmosphere.
  3. Resulting chemicals of a chemical reaction.
  4. Combustion that does not produce any heat or light due to lack of oxygen.
  5. A sugar created using photosynthesis.
  6. Rain in which acids have been dissolved in.
  7. Chemical reaction that releases energy.
Down
  1. Chemical reaction that absorbs energy.
  2. The term used for when metals begin to break down due to their reaction with other chemicals.
  3. A rapid reaction using oxygen to release energy in the form of heat and/or light.
  4. Chemical reaction in which green plants use in order to survive.
  5. Short term for sodium chloride.
  6. A written description of what is happening in a reaction.
  7. Result of hydrated iron.

14 Clues: Result of hydrated iron. • Short term for sodium chloride. • A sugar created using photosynthesis. • Chemical reaction that absorbs energy. • Chemical reaction that releases energy. • Resulting chemicals of a chemical reaction. • Rain in which acids have been dissolved in. • Chemicals used in order to created a chemical reaction. • ...

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

Chemical reaction and equation - Nahush Chaudhari crossword puzzle
Across
  1. A reaction that absorbs heat energy.
  2. A substance that starts a chemical reaction.
  3. A reaction where a substance loses oxygen or gains hydrogen.
  4. An unbalanced chemical equation is also called this type of equation.
  5. A reaction where a single substance breaks down into two or more products.
  6. A reaction that releases heat energy.
  7. An insoluble solid formed during a reaction in solution.
  8. Gradual destruction of metals by reacting with atmospheric substances like oxygen.
Down
  1. Spoiling of fats and oils due to oxidation, often leading to a bad smell and taste.
  2. A substance formed after a chemical reaction.
  3. A reaction where a more reactive element replaces a less reactive one from its compound.
  4. DISPLACEMENT A reaction where two compounds exchange ions to form new compounds.
  5. A chemical equation where the number of atoms of each element is equal on both sides.
  6. A reaction where a substance gains oxygen or loses hydrogen.
  7. A reaction where two or more substances combine to form a single product.

15 Clues: A reaction that absorbs heat energy. • A reaction that releases heat energy. • A substance that starts a chemical reaction. • A substance formed after a chemical reaction. • An insoluble solid formed during a reaction in solution. • A reaction where a substance loses oxygen or gains hydrogen. • A reaction where a substance gains oxygen or loses hydrogen. • ...

Rates of Reaction 2023-11-30

Rates of Reaction crossword puzzle
Across
  1. The substances formed as a result of a chemical reaction when reactants are transformed.
  2. The total area of the exposed surface of an object or substance.
  3. The substances that participate in a chemical reaction, undergoing transformation into products.
  4. A substance that increases the rate of a chemical reaction by lowering the activation energy required for the reaction to occur, without being consumed in the process.
  5. The speed at which a chemical reaction occurs, often measured in terms of how quickly reactants are converted into products.
  6. A measure of the degree of hotness or coldness of an object.
  7. The physical interaction or contact between particles or objects, which can be crucial in chemical reactions.
  8. The measure of the amount of a substance (usually a solute) present in a given volume of a solution.
Down
  1. When particles are available to react, they are considered...
  2. Related to motion or the energy of particles in a system.
  3. The amount of space occupied by an object or substance.
  4. A tiny, discrete unit of matter, which can refer to atoms, molecules, ions, or subatomic particles.
  5. The amount of energy required to start a chemical reaction.
  6. A chemical reaction in which the reactants collide with sufficient energy, and at the correct orientation.
  7. process in which one or more substances (reactants) change into new substances (products) due to chemical interactions.
  8. The specific arrangement or positioning of particles or objects in a particular direction or relative to one another.

16 Clues: The amount of space occupied by an object or substance. • Related to motion or the energy of particles in a system. • The amount of energy required to start a chemical reaction. • A measure of the degree of hotness or coldness of an object. • When particles are available to react, they are considered... • ...

Quantities in Chemical Reaction 2022-06-09

Quantities in Chemical Reaction crossword puzzle
Across
  1. Ratio the used to find the unknown moles.
  2. BaCl2 x H20 is called an ______.
  3. Identify the limiting reactant when 4.68 g of Fe reacts with 2.88 g of S to produce FeS.
  4. The given yield you calculated.
  5. A reactant the is limit to how much product made.
  6. Atomic mass unit
  7. Moles x Molar mass
  8. Mass of crucible/lid is 10.500g, mass of MgI2 x H20 and crucible\lid is 12.128g, mass of MgI2 (anhydrous) and crucible/lid is 11.572g.
  9. The molecular weight of a substance expressed in grams.
  10. A ceramic or metal container that holds substances to be melted.
Down
  1. The yield given found during a live experiment.
  2. contains no water
  3. The formula represented in simplest whole number ratio of atoms in compound.
  4. Having the relationship between the quantities of reactants to products.
  5. The "Law of ______ Proportion."
  6. First step in stoichiometry is a _________ equation.
  7. The number of a famous man.
  8. The substance that is not used up fully in a reaction.
  9. hydroxide Identify the limiting reactant when 7.81 g HCl reacts wtih 5.24 g NaOH to produce NaCl and H2O.
  10. The formula that is the true or actual ratio of atoms in compound.

20 Clues: Atomic mass unit • contains no water • Moles x Molar mass • The number of a famous man. • The "Law of ______ Proportion." • The given yield you calculated. • BaCl2 x H20 is called an ______. • Ratio the used to find the unknown moles. • The yield given found during a live experiment. • A reactant the is limit to how much product made. • ...

Combustion and Chemical Reaction 2024-02-16

Combustion and Chemical Reaction crossword puzzle
Across
  1. an action performed or a feeling experienced in response to a situation or event
  2. relating to chemistry, or the interactions of substances as studied in chemistry
  3. the quality of being hot; high temperature
  4. the process of burning something
  5. the heating of an organic material, such as biomass, in the absence of oxygen
  6. a thorough or dramatic change in form or appearance
  7. the destruction of something, especially waste material, by burning
  8. burning very fiercely
  9. a technological process that can convert any carbonaceous (carbon-based) raw material such as coal into fuel gas
  10. the action of setting something on fire or starting to burn
Down
  1. a colorless, odorless, highly flammable gas, the chemical element of atomic number 1
  2. easily combustible small sticks or twigs used for starting a fire
  3. a machine with moving parts that converts power into motion
  4. the strength and vitality required for sustained physical or mental activity
  5. consume by fire
  6. the chemical element of atomic number 6, a nonmetal which has two main forms (diamond and graphite) and which also occurs in impure form in charcoal, soot, and coal
  7. A chemical reaction that takes place when a substance comes into contact with oxygen or another oxidizing substance
  8. a substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape (unlike a solid) and no fixed volume (unlike a liquid)
  9. material such as coal, gas, or oil that is burned to produce heat or power
  10. reciprocal action or influence

20 Clues: consume by fire • burning very fiercely • reciprocal action or influence • the process of burning something • the quality of being hot; high temperature • a thorough or dramatic change in form or appearance • a machine with moving parts that converts power into motion • the action of setting something on fire or starting to burn • ...

Combustion and Chemical Reaction 2026-02-09

Combustion and Chemical Reaction crossword puzzle
Across
  1. A connection that holds atoms together in a molecule.
  2. The act of starting a fire.
  3. Two or more atoms bonded.
  4. Something speeds up a chemical reaction
  5. The ability to do work or make change.
  6. Basic stubstances made of only one kind of atom.
  7. What you get from a certain process or experiment.
  8. A reaction that gives off heat to its surroundings.
  9. How hot or cold something is
  10. What is left over after something is used, burned, or removed.
  11. When a substance gains electrons.
  12. Gases and bits from burning.
Down
  1. When a substance loses electrons.
  2. A gas we breathe that helps things burn.
  3. A reaction that takes in heat from its surroundings.
  4. Stuff that burns to make heat or energy.
  5. The ingredients of a chemical reaction.
  6. The bright, hot, glowing part on fire
  7. The process in which something is burned
  8. A compound of hydrogen and carbon mixed together.

20 Clues: Two or more atoms bonded. • The act of starting a fire. • How hot or cold something is • Gases and bits from burning. • When a substance loses electrons. • When a substance gains electrons. • The bright, hot, glowing part on fire • The ability to do work or make change. • The ingredients of a chemical reaction. • Something speeds up a chemical reaction • ...

CH 1 REVIEW CROSSWORD 2024-08-31

CH 1 REVIEW CROSSWORD crossword puzzle
Across
  1. is a substance made up of two or more different chemical elements combined in a fixed ratio.
  2. (orbital) - A region around an atomic nucleus, defined by a high probability that the atom's electrons will be in that region; Where the electrons are located.
  3. A subatomic particle found in the nucleus of every atom. It has a positive electrical charge
  4. something that helps a chemical reaction occur
  5. how much a substance can dissolve into another
  6. chemical change in which two or more substances form a new substance with different properties
  7. two or more atoms connected by chemical bonds,
  8. is the ability to do work and transfer heat
  9. a chemical reaction such as oxidation that produces heat and usually light
  10. A negatively charged subatomic particle found in the electron cloud
  11. energy is absorbed/ takes in heat
  12. Two or more mixed up objects that can be unmixed
  13. weight of the atom. Number of neutrons number of protons (electrons are VERY light in mass)
Down
  1. basic particle
  2. Electron(s) located in the outermost shell of an atom that is responsible for the formation of chemical bonds
  3. to become or cause to become incorporated into a liquid
  4. number of protons in an atom
  5. a substance produced by a chemical reaction, different from the reactants
  6. to make thinner
  7. occurs when two different liquid solutions are mixed as reactants.
  8. a substance that undergoes a change in a chemical reaction
  9. a transition from a state of matter to a different state of matter
  10. the substance in a solution that dissolves in the solvent
  11. the form in which matter can be found, which occurs in nature as solid, liquid, gas, or plasma
  12. energy- energy released by a chemical reaction or absorbed during the formation of a chemical compound
  13. A subatomic particle of about the same number as a proton, but neutral to an electric charge.
  14. the liquid substance in which a solute dissolves to form a solution
  15. energy is released/ gives off heat

28 Clues: basic particle • to make thinner • number of protons in an atom • energy is absorbed/ takes in heat • energy is released/ gives off heat • is the ability to do work and transfer heat • something that helps a chemical reaction occur • how much a substance can dissolve into another • Two or more mixed up objects that can be unmixed • ...

CH. 11 vocab 2022-05-03

CH. 11 vocab crossword puzzle
Across
  1. a chemical change in which one element replaces a second element in a compound
  2. substance that speeds up the rate of a chemical reaction
  3. a way of using the formulas to indicate the chemicals that were involved in the chemical reaction
  4. an ionic equation that includes only the particles that participate in the reaction
  5. a chemical change that involves an exchange of positive ions between two compounds
  6. a chemical change in which two or more substances react to form a single new substance
  7. a chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element
  8. A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.
Down
  1. an equation that shows dissolved ionic compounds as dissociated free ions
  2. a reaction in which a single compound breaks down to form two or more simpler substances
  3. a way to describe a chemical reaction using chemical formulas and other symbols
  4. ions that do not participate in a reaction
  5. a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light
  6. a list of elements in order of decreasing reactivity

14 Clues: ions that do not participate in a reaction • a list of elements in order of decreasing reactivity • substance that speeds up the rate of a chemical reaction • an equation that shows dissolved ionic compounds as dissociated free ions • a chemical change in which one element replaces a second element in a compound • ...

Types of Reactions 2024-05-06

Types of Reactions crossword puzzle
Across
  1. The reaction that occurs when a substance gains oxygen or loses hydrogen..
  2. The oxidation of oil or fat containing food items when they are kept in the open for a long time, resulting in unpleasant odour or taste.
  3. A reaction in which a single reactant is broken down into simpler products.
  4. The substance that gets oxidised is also known as this.
  5. A substance that increases or decreases the rate of a chemical reaction without being consumed itself.
  6. The type of decomposition that occurs due to exposure to sunlight. This reaction occurs with compounds like silver chloride and silver bromide.
  7. The type of decomposition that occurs due to supply of heat. This reaction occurs when hydrated ferrous sulphate crystals are heated.
  8. Substance that undergo a chemical change. They are usually found towards the left of the arrow in a chemical equation.
  9. The common name of the layer that is formed on iron when it is exposed to moisture and oxygen.
  10. The reaction in which both reduction and oxidation occur.
  11. A reaction in which heat energy is released into the surroundings.
Down
  1. A substance that inhibits or slows down oxidation.
  2. The name of the insoluble solid that is formed during a precipitation reaction.
  3. A reaction in which an insoluble salt is formed.
  4. The type of decomposition that occurs due to passing of electricity through a compound.
  5. The substance that gets reduced is also known as this.
  6. A reaction in which heat energy is absorbed from the surroundings.
  7. Chip packets are flushed with this gas to prevent the chips from becoming rancid.
  8. Substance that is formed after a chemical change. They are usually found towards the right of the arrow in a chemical equation.
  9. A reaction in which a highly reactive metal displaces/replaces a lesser reactive metal from its salt solution.
  10. Gradual destruction of a metal when it is exposed to moisture, oxygen, acids, or certain gases in the atmosphere.

21 Clues: A reaction in which an insoluble salt is formed. • A substance that inhibits or slows down oxidation. • The substance that gets reduced is also known as this. • The substance that gets oxidised is also known as this. • The reaction in which both reduction and oxidation occur. • A reaction in which heat energy is absorbed from the surroundings. • ...

Helen's Hella Handy & Helpful Crossword!! (Unit 8) 2025-05-16

Helen's Hella Handy & Helpful Crossword!! (Unit 8) crossword puzzle
Across
  1. The substance that loses electrons and is oxidized in an oxidation-reduction reaction.
  2. The point in a titration when the indicator changes color, signaling the completion of the reaction.
  3. The point in a titration at which the amount of acid equals the amount of base.
  4. The substance in a solution that is present in a smaller quantity, often a solid.
  5. A technique in which a solution of known concentration is used to determine the concentration of an unknown solution.
  6. The substance in a solution that is present in the largest quantity, often a liquid.
  7. The maximum amount of product that can be produced from the given amounts of reactants.
  8. The substance that is completely consumed in a chemical reaction, limiting the amount of product formed.
  9. The process of losing electrons during a chemical reaction.
  10. A substance that does not dissociate into ions in solution and does not conduct electricity.
Down
  1. A reaction between an acid and a base that produces water and a salt.
  2. A unit of concentration, defined as the number of moles of solute per liter of solution (M = mol/L).
  3. The ratio of the actual yield to the theoretical yield, multiplied by 100 to give a percentage.
  4. An acid that can donate more than one proton (H+).
  5. Different possible Lewis structures for a molecule or ion that cannot be represented by a single structure.
  6. The process of gaining electrons during a chemical reaction.
  7. A substance that dissociates into ions in solution and can conduct electricity.
  8. The substance that is not completely consumed in a chemical reaction, remaining after the reaction.
  9. The substance that gains electrons and is reduced in an oxidation-reduction reaction.
  10. The amount of product actually produced in a reaction.
  11. A solid that forms in a solution during a chemical reaction.
  12. A homogeneous mixture of two or more substances.

22 Clues: A homogeneous mixture of two or more substances. • An acid that can donate more than one proton (H+). • The amount of product actually produced in a reaction. • The process of losing electrons during a chemical reaction. • The process of gaining electrons during a chemical reaction. • A solid that forms in a solution during a chemical reaction. • ...

Crossword ! 2024-04-23

Crossword ! crossword puzzle
Across
  1. state in which the rate of the forward reaction equals the rate of backward reactions.
  2. speed at which a chemical reactant proceeds.
  3. components in more than one phase
  4. used in the manufacturing of ammonia from nitrogen and hydrogen.
  5. chemical reaction or physical change; heat can be absorbed by the system from the surroundings.
  6. substance which takes part in and undergoes change during a reaction.
  7. the minimum energy required to cause a process to occur.
  8. measure of the relative amounts of products and reactions present in a reaction.
  9. substance that is present after a chemical reaction takes place.
Down
  1. chemical reaction that releases energy
  2. both reactants and products are present in the concentration.
  3. when reactants react to form the products.
  4. expresses the relationship between products and reactants of a reaction.
  5. all species are present in the same phase
  6. where no reactants or products can escape.
  7. measurement of energy in a thermodynamic system.

16 Clues: components in more than one phase • chemical reaction that releases energy • all species are present in the same phase • when reactants react to form the products. • where no reactants or products can escape. • speed at which a chemical reactant proceeds. • measurement of energy in a thermodynamic system. • the minimum energy required to cause a process to occur. • ...

Chemistry Unit Test Review 2014-03-09

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

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

S1 Chemical Reactions 2023-03-29

S1 Chemical Reactions crossword puzzle
Across
  1. Go along the rows in a periodic table to find a ...
  2. When two or more types of atom are mixed but not chemically joined, a __________ is formed.
  3. Particles have to do this in order for a chemical reaction to happen.
  4. Elements are made up of one type of ______.
  5. Elements are either metals or ...
  6. Elements which share similar chemical properties are in ___________.
  7. This element has the atomic number 16.
  8. If it's not a chemical reaction, it's a _______ change.
  9. Fluorine, chlorine, bromine and iodine are all in this group.
  10. This non-metal element is a liquid at room temperature.
Down
  1. Seeing these tells us that a chemical reaction has occurred.
  2. Increasing this can increase the rate of reaction.
  3. These negatively charged particles are found on the outer shells of an atom.
  4. The periodic table is made up of these.
  5. This element has the symbol K.
  6. The group 1 ________ metals.
  7. This liquid metal was used in thermometers.
  8. He created the periodic table.
  9. These speed up a chemical reaction without getting used up.
  10. When two or more types of atoms are chemically joined, a _____________ is formed.

20 Clues: The group 1 ________ metals. • This element has the symbol K. • He created the periodic table. • Elements are either metals or ... • This element has the atomic number 16. • The periodic table is made up of these. • Elements are made up of one type of ______. • This liquid metal was used in thermometers. • Increasing this can increase the rate of reaction. • ...

Types of Reactions Vocabulary 2026-01-07

Types of Reactions Vocabulary crossword puzzle
Across
  1. A burning candle is an example of a this type of reaction.
  2. compound is a chemical compound that contains exactly two different elements.
  3. A solid that forms from two liquids.
  4. means something is dissolved in water
  5. consisting of two atoms; there are 7 naturally occurring elements
  6. equation the symbolic representation of a chemical reaction in the form of symbols and formula
  7. A+B yields AB
  8. replacement AB + CD yields AD + BC
  9. 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
  10. a substance that takes part in and undergoes change during a reaction.
Down
  1. a small number written below and to the right of an element symbol
  2. replacement A + BC yields AC + B
  3. separation of a chemical compound into elements or simpler compounds
  4. is a substance that speeds up a chemical reaction
  5. A number or symbol multiplied with a variable or an unknown quantity in an algebraic term
  6. the amount of product obtained in a chemical reaction; another term for "produces"
  7. formed from chemical reactions; on the right side of the arrow

17 Clues: A+B yields AB • replacement A + BC yields AC + B • replacement AB + CD yields AD + BC • A solid that forms from two liquids. • means something is dissolved in water • is a substance that speeds up a chemical reaction • A burning candle is an example of a this type of reaction. • formed from chemical reactions; on the right side of the arrow • ...

Lesson 4 - COMPOUND CHEMISTRY 2020-09-13

Lesson 4 - COMPOUND CHEMISTRY crossword puzzle
Across
  1. potential for hydrogen
  2. man made polymers
  3. substance that speeds up a chemical reaction without being used up in the process
  4. molecules arranged in long repeating chains
  5. energy is released during a chemical reaction
  6. tastes sour, conducts electricity, ruins metal & donates hydrogen ions
  7. when reactants absorb energy
Down
  1. substances you start with in a chemical reaction
  2. substances reactants make
  3. 2 or more substances interact with each other and change into different chemical substances
  4. chemical opposite of an acid
  5. a solid that has a regular repeating arrangement of atoms
  6. doesn't change molecules only changes the way things look
  7. base that works against the acid upsetting your stomach

14 Clues: man made polymers • potential for hydrogen • substances reactants make • chemical opposite of an acid • when reactants absorb energy • molecules arranged in long repeating chains • energy is released during a chemical reaction • substances you start with in a chemical reaction • base that works against the acid upsetting your stomach • ...

jackson-chemistry 2019-10-18

jackson-chemistry crossword puzzle
Across
  1. occurs when two or more substances mix
  2. the mass of an atom or element
  3. a chart that sorts out all elements
  4. when a reaction turns into jelly or a solid
  5. a property that is measurable and color able
  6. substance that is used in chemistry or science
  7. what you start with
  8. the building blocks of every thing
  9. an element that is in the air and makes up multiple substances
  10. when multiple atoms combine
  11. the person who created the periodic table
Down
  1. an element that is very hard
  2. a tool that is used to hold substances in science
  3. the base unit of a chemical element
  4. any material that reacts with an element
  5. a branch of science that deals with the identification of substances
  6. a substance that is created from a chemical reaction
  7. a tool to measure substances in science
  8. of the same kind
  9. what you get after a chemical reaction

20 Clues: of the same kind • what you start with • when multiple atoms combine • an element that is very hard • the mass of an atom or element • the building blocks of every thing • the base unit of a chemical element • a chart that sorts out all elements • occurs when two or more substances mix • what you get after a chemical reaction • a tool to measure substances in science • ...

Cesar Galvis 2019-06-11

Cesar Galvis crossword puzzle
Across
  1. When a substance is dissolved in water
  2. Formation between 2 nonmetals
  3. A representation of a chemical reaction
  4. Gain electrons
  5. Two compounds exchange ions and form two new compounds
  6. A new substance formed in a chemical reaction
  7. When a substance conducts electricity
  8. and F Types of sublevels
  9. An equation in which each side has the same number of atoms of each element
  10. Lose electrons
Down
  1. Formation between a metal and non metal
  2. A single element reacts with a compound and displaces another element from the compound
  3. is neither created nor destroyed during a chemical reaction.
  4. an atom or molecule that has a electrical charge.
  5. A whole number that appears before a formula in an equation
  6. If the equation have a CO2 and H2O
  7. A starting substance in a chemical reaction
  8. A+B = AB
  9. AB→ A+B
  10. Ammonium

20 Clues: AB→ A+B • A+B = AB • Ammonium • Gain electrons • Lose electrons • and F Types of sublevels • Formation between 2 nonmetals • If the equation have a CO2 and H2O • When a substance conducts electricity • When a substance is dissolved in water • Formation between a metal and non metal • A representation of a chemical reaction • A starting substance in a chemical reaction • ...

key terms 2022-03-18

key terms crossword puzzle
Across
  1. in chemistry when two or more elements or compounds combine to make more complex susbstance the process is called
  2. a material used to decrease the rate of a reaction is an
  3. when one element replaces another in compound or when two elements in different compounds trade places the process is called
  4. is material that releaes energy when it burns
  5. is a number place in foront of a chemcial formula in an eqaution
  6. is the amount of a substance in a given volume
  7. property is a characteristic of a substance taht describes its abitly to change into other substance
  8. reaction is a reaction in which energy is absorbed
  9. system matter is not allowed to eneter or leave
  10. system matter can enter from or escape to the surroundings
  11. in contrast to a synthesis reaction a process called breaks down compounds into simpler products
  12. change is any change that alter the form or apperance of a substance but that does not make the substance change into another substance.
Down
  1. is a material that increases the rate of a reaction be lowering the activation energy.
  2. the cells in your body comtains biological catalysts called
  3. property a characteristic of a substance that can be observed without changing the substance into another substance
  4. equation is a short easy way to show chemical reaction unsing symbols instead of words
  5. the substance you have at the beginning are called the
  6. a solid that forms from solution during a chemical reaction is called a
  7. of mass this principle is call and it states that during q chemical reaction matter created or destroyed
  8. energy is the minimum amount of energy needed to start a chemical reaction
  9. the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.
  10. fire is the result of a rapid reaction between oxygen and a substance called a fuel
  11. anything that has mass and takes up space
  12. reaction A change in matter that produces one or more new substances is a chemical change or
  13. when the reaction is complete you have new substances called

25 Clues: anything that has mass and takes up space • is material that releaes energy when it burns • is the amount of a substance in a given volume • system matter is not allowed to eneter or leave • reaction is a reaction in which energy is absorbed • the substance you have at the beginning are called the • a material used to decrease the rate of a reaction is an • ...

Y8 Reactions Key words 2026-01-07

Y8 Reactions Key words crossword puzzle
Across
  1. A substance formed in a chemical reaction.
  2. A system where gases or other substances can enter or leave during a reaction.
  3. A change that occurs when a new substance is formed.
  4. Scientific skill whereby scientists receive knowledge of the outside world through our senses.
  5. Type of reaction in which a compound breaks down to form two or more substances when it is heated.
Down
  1. A system where no substances can enter or leave during a reaction.
  2. states that no atoms are lost or made in a chemical reaction.
  3. A change that occurs when the form of a chemical substance is changed (rather than what a substance is made of).
  4. The process of burning by heat.
  5. Reaction in which energy is given out to the surroundings.
  6. Chart (diagram) showing the energy in the reactants and products, and the difference in energy between them.
  7. A substance that speeds up a chemical reaction without being used up or chemically changed.
  8. A substance that reacts together with another substance to form products during a chemical reaction.
  9. Reaction in which energy is taken in from the surroundings.
  10. The minimum amount of energy that colliding particles must have for them to react.

15 Clues: The process of burning by heat. • A substance formed in a chemical reaction. • A change that occurs when a new substance is formed. • Reaction in which energy is given out to the surroundings. • Reaction in which energy is taken in from the surroundings. • states that no atoms are lost or made in a chemical reaction. • ...

Crossword 2014-08-19

Crossword crossword puzzle
Across
  1. A red-brown metal, the chemical element of atomic number 29.
  2. Displacement Reaction A chemical reaction where two reactant ionic compounds exchange ions to form two new product compounds with the same ions.
  3. Reaction A reaction in which soluble ions in separate solutions are mixed together to form an insoluble compound that settles out of solution as a solid.
  4. A mixture of finely powdered aluminium and iron oxide that produces a very high temperature on combustion, used in welding and for incendiary bombs.
  5. Displacement Reaction Type of reaction where part of one reactant is replaced by another reactant.
  6. Reaction Two or more reactants combine to form a single product.
  7. A substance that takes part in and undergoes change during a reaction.
Down
  1. Equation A chemical reaction expressed in words rather than chemical formulas.
  2. A substance that is formed as the result of a chemical reaction
  3. Reaction The separation of a chemical compound into elements or simpler compounds
  4. of Mass A relation stating that in a chemical reaction, the mass of the products equals the mass of the reactants.
  5. A substance which has a molecular structure built up almost or completely from a large number of similar units bonded together
  6. Reaction Interaction of two or more chemicals that produces one or more new chemical compounds, or alters the properties of the mixed chemicals.

13 Clues: A red-brown metal, the chemical element of atomic number 29. • A substance that is formed as the result of a chemical reaction • Reaction Two or more reactants combine to form a single product. • A substance that takes part in and undergoes change during a reaction. • Equation A chemical reaction expressed in words rather than chemical formulas. • ...

Matter and Chemical C Crossword 2015-11-17

Matter and Chemical C Crossword crossword puzzle
Across
  1. chemical combination of two or more elements in a specific ratio
  2. The most reactive nonmetals
  3. Ability of a substance to conduct electricity or heat
  4. A chemical reaction that releases heat
  5. The most stable elements
  6. A pure substance formed when two nonmetals combine
  7. The most reactive metals
  8. A reaction that takes place when two or more sb=ubstance react to form new subtances
  9. substance that helps a chemical reaction proceed more quickly
  10. atom that has become electrically charged because it has lost or gained electrons
  11. pure substance that is made up of one atom
  12. An element that has both metal and nonmetal properties
  13. group 17 elements of the periodic table; the most reactive non-metals
Down
  1. The neutral particle in the nucleus of an atom
  2. A gas to a solid
  3. negatively charged particle that orbits the nucleus of an atom
  4. vertical column of elements in the periodic table of elements in the periodic table
  5. heterogeneous mixture; mixture in which the different substances that make up the mixture are visible
  6. an experiment in which one or more products of a chemical reaction can escape
  7. positively charged particle in the nucleus of an atom
  8. Positively charged centre of an atom
  9. An expirement in which all reactants and all products of a chemical reaction are accounted for
  10. Cloudy mixture in which tiny particles of one substance are held within another and particles cannot be separated out from the other substance
  11. A chemical reaction that absorbs energy

24 Clues: A gas to a solid • The most stable elements • The most reactive metals • The most reactive nonmetals • Positively charged centre of an atom • A chemical reaction that releases heat • A chemical reaction that absorbs energy • pure substance that is made up of one atom • The neutral particle in the nucleus of an atom • A pure substance formed when two nonmetals combine • ...

Reactions of Elements 2018-10-16

Reactions of Elements crossword puzzle
Across
  1. Reaction that absorbs free energy from its surrounding
  2. A chemical equation with the same number of atoms on both sides of the arrow
  3. A change in which one or more substances are converted
  4. type of reaction where two reactants exchange ions to form two new compounds
  5. Represents the number of units of each substances taking part in a reaction
  6. Occurs when a substance reacts with oxygen to produce energy in the form of heat and light
  7. A way to describe a chemical reaction using chemical formulas and other symbols
  8. Occurs when one substance breaks down into two or more substances
Down
  1. Reaction that proceeds with a net release of free energy
  2. when an element or ion moves out of one compound and into another
  3. Gain of electrons
  4. A reaction that releases energy in the form of heat
  5. A reaction that absorbs energy in the form of heat
  6. The starting substances that react
  7. The new substances produced
  8. A solid that forms from a solution during a chemical equation
  9. Loss of electrons
  10. Two or more substances combine to form another substance

18 Clues: Gain of electrons • Loss of electrons • The new substances produced • The starting substances that react • A reaction that absorbs energy in the form of heat • A reaction that releases energy in the form of heat • Reaction that absorbs free energy from its surrounding • A change in which one or more substances are converted • ...

Elements, Compounds, and Reactions Vocab 2026-02-25

Elements, Compounds, and Reactions Vocab crossword puzzle
Across
  1. A form of chemical bond that is characterized by the electrostatic attraction that binds oppositely charged ions together.
  2. A representation of a chemical reaction using numbers and symbols of the elements to represent atoms and molecules.
  3. A + X --> AX
  4. A substance composed of multiple elements combined in fixed proportions
  5. A form of chemical bond that is characterized by the sharing of pairs of electrons between atoms.
  6. A number written below and to the right of a chemical symbol; shows the number of a specific type of atom
  7. Cannot be chemically broken down or converted into other substances; defined by the atomic number
  8. Expressed as 6.02 x 1023; the number of representative particles contained in one mole of a substance
  9. A reaction in which a compound containing carbon and hydrogen reacts with oxygen gas to produce carbon dioxide gas and water
  10. The starting substance(s) of a chemical reaction
  11. The process by which one or more substances change to produce one or more different substances
  12. The principle stating that matter can be changed from one form to another but cannot be created or destroyed.
  13. The ending substance(s) of a chemical reaction
Down
  1. A + BX --> AX + B
  2. The SI unit used to describe the number of particles (atoms, molecules, ions) of a substance that are present in a sample
  3. AX --> A + X
  4. A group of two or more atoms bonded together by chemical forces
  5. The smallest unit of an element that has all of the properties of that element containing a nucleus
  6. A chemical reaction where two compounds exchange chemical bonds and switch partners
  7. A number representing the number of molecules in an equation; placed in front of a chemical symbol or formula

20 Clues: AX --> A + X • A + X --> AX • A + BX --> AX + B • The ending substance(s) of a chemical reaction • The starting substance(s) of a chemical reaction • A group of two or more atoms bonded together by chemical forces • A substance composed of multiple elements combined in fixed proportions • ...

Chemical Reactions Unit 2020-01-22

Chemical Reactions Unit crossword puzzle
Across
  1. what you must do to a chemical equation for it to "work"
  2. the rearranging of atoms between reactant and product
  3. a substance is broken down into two or more elements
  4. the mass of an entire molecule
  5. how you know how many of a specific atom are in a molecule
  6. molecules that have a charge, making them an ion
  7. two or more elements combine to form a new product
  8. when an atom replaces a similar atom in an equation
  9. how you know how many of a molecule is in a reaction
  10. a chemical reaction that gives off heat
Down
  1. shows relationship between reactants and products using symbols
  2. the atoms or molecules that are produced in a reaction
  3. a chemical reaction that absorbs heat
  4. when two atoms replace two similar atoms in a equation
  5. the atoms or molecules doing the reacting
  6. the mass of a reaction must be the same on both sides of the equation
  7. the type of chemical reaction that always produced CO2 and water

17 Clues: the mass of an entire molecule • a chemical reaction that absorbs heat • a chemical reaction that gives off heat • the atoms or molecules doing the reacting • molecules that have a charge, making them an ion • two or more elements combine to form a new product • when an atom replaces a similar atom in an equation • a substance is broken down into two or more elements • ...

Collision Theory Vocab 2026-01-07

Collision Theory Vocab crossword puzzle
Across
  1. Arrangement of particles during a collision
  2. Area Exposed area where particles can collide
  3. Substances formed as a result of a chemical reaction
  4. energy Energy of motion of particles
  5. A biological catalyst
  6. Substance formed after reactants react
  7. Energy Energy needed to start a chemical reaction
  8. Theory A theory stating that particles must collide to react
Down
  1. Measure of how hot or cold a substance is
  2. Collison A collision that results in a chemical reaction
  3. Substances present at the start of a chemical reaction
  4. A substance that increases reaction rate without being used up
  5. Amount of matter in a given volume
  6. rate Speed at which a chemical reaction occurs

14 Clues: A biological catalyst • Amount of matter in a given volume • Substance formed after reactants react • Measure of how hot or cold a substance is • Arrangement of particles during a collision • energy Energy of motion of particles • Substances formed as a result of a chemical reaction • Energy Energy needed to start a chemical reaction • ...

Chemistry in Biology - Sections 6.2 & 6.3 2015-11-17

Chemistry in Biology - Sections 6.2 & 6.3 crossword puzzle
Across
  1. molecles that have an unequal distribution of charges and have oppositely charged regions
  2. reaction that releases energy in the form of heat
  3. substance that is dissolved in the solvent (in a solution)
  4. process by which atoms or groups of atoms are changed into different substances
  5. the minimum amount of energy needed for reactants to form products in a chemical reaction
  6. weak bonding or interaction involving a hydrogen atom
Down
  1. mixtures that can react with acids or bases to keep the pH within a particular range
  2. substance that lowers the activation energy needed to start a chemical reaction
  3. combination of two or more substances in which each substance retains its individual characteristics
  4. reaction that absorbs heat energy
  5. substances that release hydroxide ions (OH-) when dissolved in water
  6. biological catalysts that speed up the rate of chemical reactions in biological processes
  7. substance formed by a chemical reaction; located on the right side of the arrow in a chemical equation
  8. substance that exists before a chemical reaction starts; located on the left side of the arrow in a chemical equation
  9. substance in which another substance is dissolved (in a solution)
  10. substances that release Hydrogen ions (H+) when dissolved in water
  11. measure of concentration of H+ in a solution
  12. mixture where all of the components are evenly distributed throughout

18 Clues: reaction that absorbs heat energy • measure of concentration of H+ in a solution • reaction that releases energy in the form of heat • weak bonding or interaction involving a hydrogen atom • substance that is dissolved in the solvent (in a solution) • substance in which another substance is dissolved (in a solution) • ...

Chapter 7 vocab 2021-12-06

Chapter 7 vocab crossword puzzle
Across
  1. minimum amount of energy needed to start a chemical reaction.
  2. chemical reaction in which heat energy is absorbed
  3. a substance that enters into and is altered in the course of a chemical reaction.
  4. the speed at which a chemical reaction proceeds.
  5. chemical reaction in which heat energy is released
  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.
Down
  1. describes how much solute is present
  2. substance that speeds up a chemical reaction but is not used up itself or permanently charged
  3. a process in which one or more substances, also called reactants, are converted to one or more different substances, known as products
  4. a substance that decreases the rate of, or prevents, a chemical reaction.
  5. substance that forms as a result of a chemical reaction
  6. catalyst that are large protein molecules

12 Clues: describes how much solute is present • catalyst that are large protein molecules • the speed at which a chemical reaction proceeds. • chemical reaction in which heat energy is absorbed • chemical reaction in which heat energy is released • substance that forms as a result of a chemical reaction • minimum amount of energy needed to start a chemical reaction. • ...

C5 - How Much? 2016-02-17

C5 - How Much? crossword puzzle
Across
  1. A chemical able to dissolve other substances.
  2. An amount of a substance where it's mass in grams is equal to the relative formula mass of the substance.
  3. The gain of electrons.
  4. The series of reaction used to produce sulfuric acid.
  5. An experimental method that is used to find out concentration.
  6. A dye that changes colour depending on its pH.
  7. A chemical able to be dissolved in a SOLVENT.
  8. The idea that the rate of a chemical reaction depends on the frequency of successful collisions.
  9. The point in which the reactants won’t convert into products in a reaction.
  10. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
Down
  1. The number of particles in a particular space. Is found by the equation Number of MOLES ÷ Volume.
  2. A chemical used to check if a solution is in a particular pH range.
  3. An INDICATOR that changes to purple/pink when in basic conditions, and becomes transparent at pH 7.
  4. A reaction where the products can react with one another and convert back to the original reactants.
  5. A mixture of a SOLVENT and SOLUTES.
  6. The mass of a NUCLEUS of an ATOM.
  7. Simplest ration of atoms in a compound.
  8. A piece of special glassware used in labs for TITARATIONS.
  9. How quick or slow a reaction is progressing.
  10. When two SOLUTIONS react to form an insoluble solid.
  11. The loss of electrons.

21 Clues: The gain of electrons. • The loss of electrons. • The mass of a NUCLEUS of an ATOM. • A mixture of a SOLVENT and SOLUTES. • Simplest ration of atoms in a compound. • How quick or slow a reaction is progressing. • A chemical able to dissolve other substances. • A chemical able to be dissolved in a SOLVENT. • A dye that changes colour depending on its pH. • ...

Intro to Chemistry 2023-03-21

Intro to Chemistry crossword puzzle
Across
  1. substances undergo a chemical change
  2. a chemical substance that cannot be broken down further
  3. two or more atoms connected by chemical bonds
  4. substance with loose free particles
  5. a mixture that appears uniform throughout
  6. the end of a chemical reaction
  7. substance composed of identical molecules
  8. two or more substances that are not chemically combined
  9. positive subatomic particle in the nucleus
  10. substance with tightly packed particles
Down
  1. the start of a chemical reaction
  2. negative subatomic particle surrounding the nucleus
  3. neutral subatomic particle in the nucleus
  4. smallest unit of an element
  5. a mixture that has distinguishable parts
  6. substance that can flow
  7. anything that takes up space
  8. mass per unit volume

18 Clues: mass per unit volume • substance that can flow • smallest unit of an element • anything that takes up space • the end of a chemical reaction • the start of a chemical reaction • substance with loose free particles • substances undergo a chemical change • substance with tightly packed particles • a mixture that has distinguishable parts • ...

Kaden Moore Crossword puzzle 2019-05-07

Kaden Moore Crossword puzzle crossword puzzle
Across
  1. measure of the amount of matter in an object
  2. particles Escape surface or liquid without boiling
  3. movement of particles from higher density to lower
  4. symbolic representation of a chemical reaction in the form of symbols
  5. determines amount of a substance that is formed in a reaction chemical reaction
  6. a numbers distance from zero
  7. relationship between relative quantities in a reaction
  8. small whole number that is in front of a formula
  9. explanation of a phenomenon based on observation
  10. F2
Down
  1. no set volume for this state of matter
  2. ratio between amounts of moles reacting in any two compounds
  3. imaginary gas with infinitely small particles that do not interact
  4. the level of electronegativity given off of a particle
  5. Co2
  6. ion formed from a single atom
  7. constant force caused by planetary masses
  8. can take the shape of its container whilst still containing a set volume
  9. solid formed from a solution in a chemical reaction
  10. collision between elastic masses whom's start and end kinetic energy is the same
  11. has leftover particles after a chemical reaction has happened
  12. reaction where two atoms combine to form a new compound
  13. a pattern, plan, or representation of a model
  14. compound composed of two elements

24 Clues: F2 • Co2 • a numbers distance from zero • ion formed from a single atom • compound composed of two elements • no set volume for this state of matter • constant force caused by planetary masses • measure of the amount of matter in an object • a pattern, plan, or representation of a model • small whole number that is in front of a formula • ...

Section 1, 2, 3, 4 2022-03-21

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

26 Clues: In contrast to a synthesis reaction • Matters not allowed to enter or leave • The substances you have at the beginning • Is a reaction in which energy is absorbed • The study of matter and how matter changes • Is anything that has mass and takes up space • Is the amount of a substance in a given volume • A rapid reaction between oxygen and the substance • ...

Particles Matter Review 2025-04-03

Particles Matter Review crossword puzzle
Across
  1. move randomly and spread out
  2. a change that results in at least one new substance being formed due to the breaking and forming of chemical bonds and rearrangement of atoms in a reaction
  3. packed closely together but move freely over each other
  4. new chemical substances that result from a chemical reaction; new chemical bonds are formed to make the products during a chemical reaction
  5. chemical substances used in a chemical reaction; chemical bonds of the reactants are broken during a chemical reaction
  6. pure substances made up of only one type of atom
  7. a change in which no new chemical substances are formed; a physical change may be a change in shape, size or state, and many of these changes are easy to reverse
  8. elements that conduct heat and electricity; shiny solids that can be made into thin wires and sheets that bend easily
  9. the process of combining with oxygen, most commonly burning with a flame
Down
  1. packed closely together;vibrate in fixed position
  2. changing from gas to a liquid
  3. a combination of substances in which each keeps its own properties
  4. the condition or phase of a substance; the three main states of matter are solid, liquid and gas
  5. changing from a solid to gas
  6. changing from a gas to a solid
  7. two or more atoms joined (bonded) covalently together
  8. the central part of an atom, made up of protons and neutrons

17 Clues: move randomly and spread out • changing from a solid to gas • changing from gas to a liquid • changing from a gas to a solid • pure substances made up of only one type of atom • packed closely together;vibrate in fixed position • two or more atoms joined (bonded) covalently together • packed closely together but move freely over each other • ...

Chemistry Bonus 2023-04-25

Chemistry Bonus crossword puzzle
Across
  1. The study of how heat is converted to and from other forms of energy
  2. The final temperature of a substance
  3. Gas to liquid
  4. The energy required to start a reaction
  5. Liquid to gas
  6. The initial temperature of a substance
  7. Measurement of heat
  8. The change in heat in a reaction, determines if the reaction is exothermic or endothermic
  9. Liquid to solid
  10. The amount of energy needed to raise 1 gram of a substance 1C
Down
  1. A product of a reaction
  2. Tendency of an atom to attract electrons
  3. A reaction that gains heat in order to happen
  4. A reaction that loses heat when happening
  5. A substance that speeds up a chemical reaction without itself undergoing any chemical change
  6. Solid to liquid
  7. Biological catalysts
  8. The elements/compounds used in a reaction
  9. 1,000 calories
  10. 1,000 Joules

20 Clues: 1,000 Joules • Gas to liquid • Liquid to gas • 1,000 calories • Solid to liquid • Liquid to solid • Measurement of heat • Biological catalysts • A product of a reaction • The final temperature of a substance • The initial temperature of a substance • The energy required to start a reaction • Tendency of an atom to attract electrons • A reaction that loses heat when happening • ...

Chemical Reactions 2018-02-19

Chemical Reactions crossword puzzle
Across
  1. a measure of how many particles are present in a volume of solution
  2. substance that speeds up a chemical reaction but is not used up
  3. the chemical name for burning
  4. the chemicals at the end of a reaction
  5. the chemicals at the start of a reaction
  6. a biological catalyst
  7. an example of an enzyme; found in saliva
Down
  1. name of the chemical compound we call rust
  2. physical change when a substance changes from liquid to gas
  3. a solid produced from a reaction between two liquids
  4. a measure of how quickly a reaction happens
  5. when reactant particles 'bump into each other'
  6. a measure of the heat energy of particles
  7. the presence of these in a reaction shows a gas is released
  8. the element that a substance reacts with when it burns
  9. a new substance is ______ made in a chemical reaction

16 Clues: a biological catalyst • the chemical name for burning • the chemicals at the end of a reaction • the chemicals at the start of a reaction • an example of an enzyme; found in saliva • a measure of the heat energy of particles • name of the chemical compound we call rust • a measure of how quickly a reaction happens • when reactant particles 'bump into each other' • ...

Chemical Reactions 2025-04-19

Chemical Reactions crossword puzzle
Across
  1. The amount of area of a substance exposed to a chemical reaction.
  2. How fast a reaction occurs, measuring by how quickly a reactant or product changes over time.
  3. A sub-atomic particle with a negative charge and a very small mass found in orbitals around the nucleus of an atom.
  4. The minimum amount of energy needed for a chemical reaction to occur.
  5. Value used to describe the amount of thermal energy in a substance. Can increase the rate of reactions.
  6. A sub-atomic particle found in the nucleus of an atom with no charge.
  7. When particles meet with enough energy required for chemical reaction to occur.
  8. A charged chemical formed when an atom (or group of atoms) loses or gains electrons.
Down
  1. A process in which a substance undergoes a change in its atomic or molecular structure and becomes a new substance.
  2. A way of representing how the electrons within an atom or ion are arranged.
  3. The amount of a substance in a solution
  4. A chemical that increases the rate of a reaction by lowering the activation energy but is not used up in the reaction.
  5. Any chemicals that are rearranged during a chemical reaction.
  6. A sub-atomic particle found in the nucleus of an atom with a positive charge.
  7. Any chemicals that are formed as a result of a chemical reaction.
  8. The amount of force across the surface area of the volume of a substance.

16 Clues: The amount of a substance in a solution • Any chemicals that are rearranged during a chemical reaction. • The amount of area of a substance exposed to a chemical reaction. • Any chemicals that are formed as a result of a chemical reaction. • The minimum amount of energy needed for a chemical reaction to occur. • ...

Chemical Reactions and Equations Crossword by Amin 10-O 2024-05-04

Chemical Reactions and Equations Crossword by Amin 10-O crossword puzzle
Across
  1. It is used in the manufacture of cement (CaO).
  2. The new substance formed in a chemical reaction.
  3. It points towards the products and shows the direction of the reaction.
  4. The gain of oxygen and loss of hydrogen.
  5. A reaction where decomposition reaction is carried out by photons.
  6. A reaction where decomposition reaction is carried out by electricity.
  7. Any type of reaction that produces a precipitate.
  8. A reaction where decomposition reaction is carried out by heating.
  9. The loss of oxygen and loss of hydrogen.
Down
  1. An exothermic reaction which occurs in living organisms.
  2. The substances that undergo chemical change in a chemical reaction.
  3. The reaction where a single substance decomposes to give two or more substances.
  4. The physical state of a reactant or a product which is present as a solution in water.
  5. Reactions where energy is absorbed.
  6. Reactions where heat is given out along with the products.
  7. The reaction where two or more substances combine to form a new single substance.

16 Clues: Reactions where energy is absorbed. • The gain of oxygen and loss of hydrogen. • The loss of oxygen and loss of hydrogen. • It is used in the manufacture of cement (CaO). • The new substance formed in a chemical reaction. • Any type of reaction that produces a precipitate. • An exothermic reaction which occurs in living organisms. • ...

Enzymes & ATP 2022-11-15

Enzymes & ATP crossword puzzle
Across
  1. energy needed to start a chemical reaction
  2. when an enzymes active site loses its shape due to heat or other factors
  3. new substance made during a chemical reaction
  4. substance that speeds up chemical reactions
  5. breaking and forming of bonds between different substances during chemical changes
  6. type of catalyst that speeds up reactions
  7. all of the chemical reactions that occur in a cell
  8. making large molecules from smaller molecules
Down
  1. substance that is changed during a chemical reaction
  2. reaction that releases energy
  3. region of an enzyme where the substrate binds to the enzyme
  4. energy-carrying molecule that provides energy for cells
  5. reaction that absorbs energy
  6. breaking down larger molecules

14 Clues: reaction that absorbs energy • reaction that releases energy • breaking down larger molecules • type of catalyst that speeds up reactions • energy needed to start a chemical reaction • substance that speeds up chemical reactions • new substance made during a chemical reaction • making large molecules from smaller molecules • ...

States of matter crossword puzzle (final project) 2024-05-13

States of matter crossword puzzle (final project) crossword puzzle
Across
  1. A measure of how much solute can dissolve in a given solvent at a given temperature.
  2. the production of chemical compounds by reaction from simpler materials.
  3. The state of matter whose solubility typically decreases with increasing temperature
  4. Same throughout
  5. A characteristic of a pure substance that can be observed without changing it into another substance
  6. A solid that forms from a solution during a chemical reaction.
  7. Chemical agents that selectively speed up chemical reactions without being consumed by the reaction.
  8. Break down of a chemical organism
  9. A graphical representation of how much solute will dissolve in water at various temperatures
  10. one element replaces another element in a compound
  11. A solution that contains a small amount of solute
  12. a chemical reaction where two elements in different compounds trade places
  13. A solution that holds as much solute in it as possible at a given temperature.
  14. Energy needed to get a reaction started
Down
  1. Water
  2. solution A solution that holds more solute than predicted at a given temperature
  3. The heat content of a system at constant pressure
  4. A reaction that ABSORBS energy in the form of heat
  5. A rapid reaction between oxygen and fuel that results in fire
  6. when a solid matter forms a gas without becoming a liquid
  7. A solution that doesn't hold as much solute as possible at a given temperature
  8. a chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element
  9. the reaction of an acid and a base to form a neutral solution of water and a salt
  10. The part of a solution that does the dissolving
  11. A reaction that releases energy in the form of heat
  12. something that can be observed about a substance, such as color, smell, or boiling point
  13. Not the same throughout
  14. A solution that had a great amount of solute
  15. Particles are tightly packed, but are far enough apart to slide past each other.
  16. The part of a solution that gets dissolved
  17. A mixture of substances

31 Clues: Water • Same throughout • Not the same throughout • A mixture of substances • Break down of a chemical organism • Energy needed to get a reaction started • The part of a solution that gets dissolved • A solution that had a great amount of solute • The part of a solution that does the dissolving • The heat content of a system at constant pressure • ...

States of matter crossword puzzle (final project) 2024-05-13

States of matter crossword puzzle (final project) crossword puzzle
Across
  1. A measure of how much solute can dissolve in a given solvent at a given temperature.
  2. the production of chemical compounds by reaction from simpler materials.
  3. The state of matter whose solubility typically decreases with increasing temperature
  4. Same throughout
  5. A characteristic of a pure substance that can be observed without changing it into another substance
  6. A solid that forms from a solution during a chemical reaction.
  7. Chemical agents that selectively speed up chemical reactions without being consumed by the reaction.
  8. Break down of a chemical organism
  9. A graphical representation of how much solute will dissolve in water at various temperatures
  10. one element replaces another element in a compound
  11. A solution that contains a small amount of solute
  12. a chemical reaction where two elements in different compounds trade places
  13. A solution that holds as much solute in it as possible at a given temperature.
  14. Energy needed to get a reaction started
Down
  1. Water
  2. solution A solution that holds more solute than predicted at a given temperature
  3. The heat content of a system at constant pressure
  4. A reaction that ABSORBS energy in the form of heat
  5. A rapid reaction between oxygen and fuel that results in fire
  6. when a solid matter forms a gas without becoming a liquid
  7. A solution that doesn't hold as much solute as possible at a given temperature
  8. a chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element
  9. the reaction of an acid and a base to form a neutral solution of water and a salt
  10. The part of a solution that does the dissolving
  11. A reaction that releases energy in the form of heat
  12. something that can be observed about a substance, such as color, smell, or boiling point
  13. Not the same throughout
  14. A solution that had a great amount of solute
  15. Particles are tightly packed, but are far enough apart to slide past each other.
  16. The part of a solution that gets dissolved
  17. A mixture of substances

31 Clues: Water • Same throughout • Not the same throughout • A mixture of substances • Break down of a chemical organism • Energy needed to get a reaction started • The part of a solution that gets dissolved • A solution that had a great amount of solute • The part of a solution that does the dissolving • The heat content of a system at constant pressure • ...

Chapter 8 2023-03-08

Chapter 8 crossword puzzle
Across
  1. two types of anions are exchanged
  2. strong electrolytes that contain OH- ions
  3. complete formulas of all reactants and products
  4. substance that dissolves in water and produces separated ions
  5. left side of a chemical equation
  6. includes only the components that are directly involved in the reaction
  7. reaction that involves oxygen producing heat and a flame
  8. all substances that are strong electrolytes are represented as ions
  9. tiny proportion dissolves in water, undetectable with naked eye
  10. the second driving force
  11. the solid that forms in a chemical reaction
  12. a substance that produces hydroxide ions in water
  13. a given compound is formed from simpler materials
  14. the reaction that forms in a chemical reaction
  15. consists of Ca2+ and Co3^2-
  16. the fourth driving force
  17. the first driving force
Down
  1. involves a H+ ion that ends up in the product water
  2. a type of ionic compound
  3. another word for synthesis reaction
  4. the third driving force
  5. ions that do not participate directly in a reaction in solution
  6. right side of a chemical equation
  7. associations are reversed in a reaction
  8. another word for base
  9. strong electrolytes that produce H+ ions
  10. a solid that readily dissolves in water
  11. a reaction that involves a transfer of electrons
  12. a compound being broken down into simpler compounds
  13. OH- ion
  14. substance that produces H+ ions when it is dissolved in water
  15. the net charge a solid compound must have

32 Clues: OH- ion • another word for base • the third driving force • the first driving force • a type of ionic compound • the second driving force • the fourth driving force • consists of Ca2+ and Co3^2- • left side of a chemical equation • two types of anions are exchanged • right side of a chemical equation • another word for synthesis reaction • associations are reversed in a reaction • ...

Andrew Wojciechowski 2024-05-15

Andrew Wojciechowski crossword puzzle
Across
  1. process that leads to the chemical transformation
  2. thermal energy transferred between systems
  3. quantitative property that is transferred to a body or to a physical system
  4. thermodynamic process or reaction that releases energy
  5. chemical substance that cannot be broken down into other substances
  6. a substance that increases the rate of a chemical reaction
  7. species formed from chemical reactions.
  8. the amount of space the object takes up
  9. result from the electrostatic force between oppositely charged ions as in ionic bonds
  10. basic particles of the chemical elements
Down
  1. physical substance in general
  2. a group of atoms bonded together
  3. study of the properties and behavior of matter
  4. physical quantity that quantitatively expresses the attribute of hotness or coldness.
  5. changes affecting the form of a chemical substance
  6. material made up of two or more different chemical substances
  7. chemical substance composed of many identical molecules
  8. intrinsic property of a body

18 Clues: intrinsic property of a body • physical substance in general • a group of atoms bonded together • species formed from chemical reactions. • the amount of space the object takes up • basic particles of the chemical elements • thermal energy transferred between systems • study of the properties and behavior of matter • process that leads to the chemical transformation • ...

Andrew Wojciechowski 2024-05-15

Andrew Wojciechowski crossword puzzle
Across
  1. process that leads to the chemical transformation
  2. thermal energy transferred between systems
  3. quantitative property that is transferred to a body or to a physical system
  4. thermodynamic process or reaction that releases energy
  5. chemical substance that cannot be broken down into other substances
  6. a substance that increases the rate of a chemical reaction
  7. species formed from chemical reactions.
  8. the amount of space the object takes up
  9. result from the electrostatic force between oppositely charged ions as in ionic bonds
  10. basic particles of the chemical elements
Down
  1. physical substance in general
  2. a group of atoms bonded together
  3. study of the properties and behavior of matter
  4. physical quantity that quantitatively expresses the attribute of hotness or coldness.
  5. changes affecting the form of a chemical substance
  6. material made up of two or more different chemical substances
  7. chemical substance composed of many identical molecules
  8. intrinsic property of a body

18 Clues: intrinsic property of a body • physical substance in general • a group of atoms bonded together • species formed from chemical reactions. • the amount of space the object takes up • basic particles of the chemical elements • thermal energy transferred between systems • study of the properties and behavior of matter • process that leads to the chemical transformation • ...

Adjective in Chemistry 2022-06-23

Adjective in Chemistry crossword puzzle
Across
  1. chemical reaction that release heat.
  2. is a stable chemical that does not produce chemical reaction.
  3. chemical reaction that absorb heat.
  4. is substance that are not acidic or basic.
  5. reactions where chemicals react strongly with each other.
  6. taste comes from alkaline substance.
  7. substances react instantly with other chemicals.
  8. is chemical reactions that occurs naturally.
Down
  1. is used to describe the Chemicals involve in the chemical reaction.
  2. substances are very dangerous and acidic.
  3. is the total of the atomic weights of all the elements in a compound.
  4. compounds contains carbon atoms.
  5. compounds does not have carbon atoms.
  6. taste comes from acidic substance.
  7. reactions where chemicals don'react with each other.

15 Clues: compounds contains carbon atoms. • taste comes from acidic substance. • chemical reaction that absorb heat. • chemical reaction that release heat. • taste comes from alkaline substance. • compounds does not have carbon atoms. • substances are very dangerous and acidic. • is substance that are not acidic or basic. • is chemical reactions that occurs naturally. • ...

Bonds, Reactions, Acids, & Bases 2025-01-08

Bonds, Reactions, Acids, & Bases crossword puzzle
Across
  1. When a hydrogen ion (H+) reacts / combines with a hydroxide ion (OH-) it makes…
  2. elements with properties in between metals and nonmetals
  3. the bond between two metal atoms
  4. a chemical that releases hydroxide (OH-) when dissolved in water
  5. A chemical that releases hydrogen ions (H+) when dissolved in water
  6. a reaction that absorbs heat
  7. a charged atom
  8. the bond between two nonmetal atoms
  9. the type of reaction where a compound breaks down into simpler substances
  10. Acids taste ________.
  11. A chemical that changes color depending on how acidic or basic a solution is.
  12. the most reactive group of metals
  13. the type of reaction where two substances are combined to make a new substance
  14. the same thing as a hydrogen ion
Down
  1. A pH above 7.
  2. Bases taste _________.
  3. a group of atoms covalently bonded together
  4. the most reactive group of nonmetals
  5. burning; a reaction with O2
  6. The paper that contains an indicator used to measure acids and bases
  7. the least reactive group of elements
  8. a reaction that releases heat
  9. the building blocks of matter
  10. A pH of 7
  11. A pH below 7.
  12. a substance added to a chemical reaction to increase the reaction rate
  13. the bond between a metal atom and a nonmetal atom

27 Clues: A pH of 7 • A pH above 7. • A pH below 7. • a charged atom • Acids taste ________. • Bases taste _________. • burning; a reaction with O2 • a reaction that absorbs heat • a reaction that releases heat • the building blocks of matter • the bond between two metal atoms • the same thing as a hydrogen ion • the most reactive group of metals • the bond between two nonmetal atoms • ...

Investigation 6 Vocabulary 2025-04-20

Investigation 6 Vocabulary crossword puzzle
Across
  1. A single compound breaks down into two or more simpler products.
  2. A scale that ranges from 0 to 14, indicating how acidic or basic a substance is.
  3. A positively charged ion (has less electrons than it should).
  4. One element replaces another in a compound.
  5. A chemical reaction where an acid and a base react to form water and a salt.
  6. The reactant that is used up first in a chemical reaction, thereby determining the amount of product formed.
  7. The anions and cations of two different compounds switch places.
  8. A negatively charged ion (has more electrons than it should).
  9. A chemical reaction that releases energy.
  10. The ending substances in a reaction.
  11. A substance that has a pH greater than 7 and releases hydroxide (OH-) ions when dissolved in water.
  12. A process in which one or more substances are changed into new substances with different properties.
Down
  1. A way to represent a chemical reaction using symbols and formulas.
  2. Two substances come together and react to form one substance.
  3. A law that implies that mass can neither be created nor destroyed.
  4. The starting substances in a reaction.
  5. A substances that has a pH of less than 7 and releases hydrogen ions (H+) when dissolved in water.
  6. A substance combines with oxygen, releasing energy in the form of light or heat.
  7. A chemical reaction that absorbs energy.
  8. The reactant that remains after the limiting reactant is completely consumed.

20 Clues: The ending substances in a reaction. • The starting substances in a reaction. • A chemical reaction that absorbs energy. • A chemical reaction that releases energy. • One element replaces another in a compound. • Two substances come together and react to form one substance. • A positively charged ion (has less electrons than it should). • ...