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