Across
- 4. is another term for burning
- 6. when exothermic reaction occurs
- 10. Magnesium+Oxygen
- 12. CalciumOxide+Water
- 14. is an exothermic
- 18. potassium+chlorine
- 20. process temperature decreases
- 21. when endothermic reaction takes place
- 22. substance that forms when water evaporates
Down
- 1. processes give out heat
- 2. processes give in heat
- 3. given out when metal reacts with water or acid
- 5. is a reaction in which substance combines with oxygen
- 7. acid reacts with carbonate is an endothermic reaction
- 8. reacts with water or acids, heat energy is given out
- 9. calcium oxide+water
- 11. substance that combines with and oxygen
- 13. Carbon+Oxygen
- 14. formula of carbon dioxide
- 15. Element that takes up 20% of the air
- 16. Reaction where substance reacts with oxygen
- 17. sweets is endothermic reaction
- 19. substance that forms when ice melts