ENERGY CHANGES - Sec 2

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Across
  1. 5. is another term for burning
  2. 7. In an endothermic reaction, this property of a substance decreases.
  3. 8. magnesium + _______ --> magnesium oxide
  4. 9. chemical reactions in heat is taken from the surroundings and is stored as chemical energy
  5. 10. hydrogen + oxygen --> __________
Down
  1. 1. ________ + water --> calcium hydroxide
  2. 2. carbon + oxygen --> __________
  3. 3. a chemical reaction in which energy is given out and temperature rises
  4. 4. any reaction where a substance combines with oxygen
  5. 6. In burning, this is a substance that combines with oxygen.