Chapter 11 Puzzle

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Across
  1. 3. used to indicate a reversible reaction (2 wds)
  2. 5. most decomposition reactions need energy in the form of __, heat, or light
  3. 7. in __ combustion, the products are carbon dioxide and water
  4. 8. (aq) means the substance is dissolved in water
  5. 10. new substances formed in a chemical reaction
  6. 11. in this type of reaction, an element tries to replace another in a compound (2 wds)
  7. 12. products have different properties due to the forming and breaking of __
  8. 14. this list is used in single replacement reactions (2 wds)
  9. 16. the arrow in an equation is read as “produces or __”
  10. 17. substance that speeds up a reaction without being used by the reaction
  11. 18. in __ combustion, the products are carbon monoxide and water
  12. 19. __ reactions form ONE substance
Down
  1. 1. (g) means the substance is in the __ state
  2. 2. formation of a solid from solutions
  3. 3. in this type of reaction, cations are exchanged in two compounds (2 wds)
  4. 4. starting substances in a chemical reaction
  5. 6. products of a chemical reaction have different __ and physical properties
  6. 9. (s)
  7. 13. __ reactions break down ONE substance into two or more substances
  8. 15. balanced equations obey the law of __ of mass