Chemical reactions

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Across
  1. 3. A change of state
  2. 7. Substances produced by a chemical reaction
  3. 8. A reaction that releases heat and light
  4. 10. The side of the arrow products are found on
  5. 11. When the amount of something remains the same
  6. 12. What is needed for a thermal decomposition reaction
Down
  1. 1. This happens to the atoms in a chemical reaction
  2. 2. The side of the arrow reactants are found on
  3. 4. Substances shown before the arrow in an equation.
  4. 5. A reaction were a new substance is formed
  5. 6. A store of chemical energy
  6. 9. Another word for heat