Unit 3: Chemical Reactions

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Across
  1. 2. A number written after & below an element symbol.
  2. 6. Another word for soluble (aq)
  3. 10. (l)
  4. 11. The total mass of the reactants must ______________ the total mass of the products.
  5. 12. The elements & compounds on the left side of the arrow.
  6. 13. The type of reaction that breaks apart 1 compound into 2 or more smaller compounds.
  7. 14. The big number in front of a chemical formula.
  8. 15. A number written after & above an element symbol.
  9. 17. _____________ replacement: The type of reaction where an element reacts with a compound and takes the place of another element in that compound.
  10. 18. The elements & compounds on the left side of the arrow.
  11. 19. (g)
Down
  1. 1. Not able to be dissolved.
  2. 2. (s)
  3. 3. The type of reaction where a compound and an oxidant is reacted to produce heat and a new product.
  4. 4. The Law of Conservation of Mass says that both sides of a chemical equation must be ____________.
  5. 5. _____________ replacement: The type of reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products.
  6. 7. The type of reaction that combines 2 elements or compounds into 1 compound.
  7. 8. A molecule that, when written by itself, needs a subscript of 2.
  8. 9. The formation of a solid in a liquid.
  9. 16. able to be dissolved.