Balancing Chemical Equations

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Across
  1. 4. A substance that changes the rate of a reaction, even though it is not used very much
  2. 6. Area action where energy is released into the surroundings
  3. 7. Substances formed in a reaction
  4. 8. Reactions often occur at higher _____
  5. 9. Substances that participate in a chemical reaction
  6. 10. uses chemical symbols and numbers to represent a given substance
Down
  1. 1. Expressions that uses symbols to show the relationship between the starting substances and the substances that are produced by chemical reaction
  2. 2. the process in which atoms are rearranged to produce new substances
  3. 3. Energy cannot be created or destroyed
  4. 5. A chemical reaction that requires an input of energy