Chem 1 Chapter 11 Vocabulary

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Across
  1. 4. a chemical equation that does not indicate the relative amounts of the reactants and products
  2. 6. reaction a chemical change in which an element or a compound reacts with oxygen, often producing energy in the form of heat and light
  3. 7. a chemical change in which one element replaces a second element in a compound
  4. 8. an equation that shows dissolved ionic compounds as dissociated free ions
  5. 9. a substance that speeds up the reaction but is not used up in the reaction
  6. 10. a number placed in front of a chemical symbol or formula
  7. 11. a chemical change in which one element replaces a second element in a compound
Down
  1. 1. a chemical change in which two or more substances react to form a single new substance
  2. 2. lists elements in order of decreasing reactivity.
  3. 3. a chemical change in which a single compound breaks down into two or more simpler products
  4. 5. representation of a chemical reaction