Chemical Equations

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Across
  1. 1. a negatively charged subatomic particle located in the outer shells
  2. 7. a change where no new substances are formed and is relatively easy to reverse
  3. 8. a way to represent a chemical reaction in the form of symbols and formulas
Down
  1. 2. a change where a new substance is formed
  2. 3. the substances that go into a chemical reaction before it has happened
  3. 4. the smaller number that tells you how many atoms are in one molecule of a substance
  4. 5. the part in a chemical equation that shows you what is produced
  5. 6. the big number that tells you how many molecules there are in a chemical formula
  6. 7. a positively charged subatomic particle located in the nucleus