CH. 11 vocab

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Across
  1. 1. a chemical change in which one element replaces a second element in a compound
  2. 6. substance that speeds up the rate of a chemical reaction
  3. 8. a way of using the formulas to indicate the chemicals that were involved in the chemical reaction
  4. 10. an ionic equation that includes only the particles that participate in the reaction
  5. 11. a chemical change that involves an exchange of positive ions between two compounds
  6. 12. a chemical change in which two or more substances react to form a single new substance
  7. 13. a chemical equation in which mass is conserved; each side of the equation has the same number of atoms of each element
  8. 14. 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. 2. an equation that shows dissolved ionic compounds as dissociated free ions
  2. 3. a reaction in which a single compound breaks down to form two or more simpler substances
  3. 4. a way to describe a chemical reaction using chemical formulas and other symbols
  4. 5. ions that do not participate in a reaction
  5. 7. a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light
  6. 9. a list of elements in order of decreasing reactivity