Paragraph Directions: Use the equations below to answer the following questions
Zn(s) + S() ZnS(s )
1. What are the reactants in this chemical reaction?
2. What is the product?
3. What is the physical state of both the reactants and the products?
4. According to the law of conservation of mass, if the total mass of the product in this chemical
reaction is 14 g, what must the combined masses of the reactants be?
2H2 (g) + O2(g) 2H2O(1)
5. What name describes the product in this reaction?
6. What names describe the reactants?
7. What are the physical states of the reactants in this reaction?
8. What is the physical state of the product?
9. What do the coefficients tell you about the ratio of the reactants?
McGraw-Hill Companies, Inc.
10. How many units of the product are produced?