Chapter 7 Vocab

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Across
  1. 2. a reaction in which a compound breaks down into two or more simpler substances
  2. 7. a reaction in which one element is substituted for another element in a compound
  3. 8. a reaction in which energy is released in the form of light or heat
  4. 13. the species formed from chemical reactions
  5. 14. the symbolic representation of a chemical reaction in the form of symbols and chemical formulas
  6. 15. the unit of measurement in the International System of Units (SI) for amount of substance
Down
  1. 1. a chemical reaction in which a fuel undergoes oxidation by reacting with an oxidising agent, resulting in the release of energy
  2. 3. any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron
  3. 4. a chemical process in which two or more simple elements or compounds combine to form a more complex product
  4. 5. occur when parts of two ionic compounds are exchanged, making two new compounds
  5. 6. chemical reactions in which the reactants absorb heat energy from the surroundings to form products
  6. 9. a substance that takes part in and undergoes change during a reaction
  7. 10. the energy which is stored in the bonds of chemical compounds
  8. 11. the mass of a chemical compound divided by its amount-of-substance measured in moles
  9. 12. a number that is constant for a given substance, body, or process under certain specified conditions