9-12.P.1.4

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Across
  1. 1. a chemical reaction in which two or more substances combine to forrm a different substance
  2. 3. a chemical reaction in which a substance breaks down into two or more simpler substances
  3. 4. new substances formed as a result of a chemical reaction
  4. 5. matter that is a combination of atoms of two or more elements
  5. 6. a neutral group of atoms that are joined together by one or more covalent bonds
  6. 7. in a chemical equation, a number to the left of each reactant and product that shows the relative amount of each substance involved in the reaction
  7. 8. a chemical reaction in which the positive ions in two or more substances trade places
Down
  1. 1. a chemical reaction in which one element replaces another element in a compound
  2. 2. rapid oxidation, or burning
  3. 9. in a chemical reaction, the substance you start with before the reaction
  4. 10. an amount of a substance that contains approximately 6.02 X 10^23 particles of the substance