Stoichiometry

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Across
  1. 1. the mass of an atom
  2. 4. the measure of the efficiency of a chemical reaction calculated by dividing the theoretical yield by the actual yield and multiplied by a 100
  3. 9. the mass of one mole of the substance
  4. 10. the total mass of the empirical formula
  5. 12. Is the following chemical equation balanced or unbalanced? 4Al + 3O -> 2Al O
  6. 13. the number preceding the substances in a chemical equation
  7. 14. a type of reaction where bonds between atoms are formed or broken
  8. 16. using a balanced chemical equation to calculate the amount of reactants and products is called
  9. 17. What type of reaction? 2HgO -> 2Hg + O
  10. 18. What type of reaction? FeS + 2HBr -> 1FeBr + H S
  11. 19. 6.02 x 10
  12. 20. What type of reaction? 2Al + 6HCl -> 2AlCl + 3H
  13. 21. 6.02 x 10
  14. 22. these problems tell you how much of any given product you get by reacting any given amount of reactants
Down
  1. 2. What type of reaction? O + H -> H O
  2. 3. the true formula
  3. 5. the simplest form of the formula
  4. 6. the amount of a substance actually produced at the end of a chemical reaction
  5. 7. In a chemical equation, these substances are right of the arrow
  6. 8. In a chemical equation, these substances are left of the arrow
  7. 11. percentage of each element in a compound
  8. 14. What type of reaction? C H O + 4O -> 3CO + 3H O
  9. 15. representation of a chemical reaction using symbols, numbers, etc.