Characteristics of Chemical Reactions

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