Chemical Reaction

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Across
  1. 1. Matter can't be neither created nor destroyed in a chemical reaction
  2. 7. Numbertelling how many molecules of a substance are involved in a chemical reaction
  3. 9. One or two letters used to represent an element
  4. 10. Appearance of a solid when two liquids mix
  5. 11. A change in matter that produces new substances
Down
  1. 2. Reactions give off energy/heat
  2. 3. Substances present before a reaction
  3. 4. Reactions absorb energy/heat
  4. 5. Substances present after a reaction
  5. 6. Uses symbols and formulas to show reactions
  6. 8. Numbers telling how many atoms are in a molecule or the ratio of elements in a compound