Directions: Work the Following Problems Based on Chapter 11 Section 1. Title: Daily Work 11-1

Name ______Date ______Class ______

Directions: Work the following problems based on Chapter 11 Section 1. Title: Daily Work 11-1

Match each description in column B to the correct term in column A.

Column A Column B a. An equation in which each side has the same number of atoms of each _____ 1. Chemical equation element. _____ 2. Skeleton equation b. A substance that speeds up the rate of a reaction.

_____ 3. Catalyst c. A symbolic way of describing a chemical reaction.

_____ 4. Coefficients d. Substances that undergo chemical change. e. A chemical equation that does not indicate the amounts of substances _____ 5. Balanced equation involved. _____ 6. Reactants f. New substances formed in a chemical reaction.

_____ 7. Products g. Numbers used to balance a chemical equation.

8. How do you write a word equation?

9. How do you write a skeleton equation?

10. Describe the steps in writing balanced chemical equations.

11. Write a sentence that describes this chemical reaction: Na(s) + H2O(l) → NaOH(aq) + H2(g) 12. Write skeleton equations for these reactions: a. Heating copper (II) sulfide in the presence of diatomic oxygen produces pure copper and sulfur dioxide gas.

b. When heated, baking soda (sodium hydrogen carbonate) decomposes to form the products sodium carbonate, carbon dioxide, and water.

13. Write and balance equations for the following reactions: a. Iron metal and chlorine gas react to form solid iron (III) chloride.

b. Solid aluminum carbonate decomposes to form solid aluminum oxide and carbon dioxide gas.

c. Solid magnesium reacts with aqueous silver nitrate to form solid silver and aqueous magnesium nitrate.

14. Balance the following equations.

a. _____ SO2 + _____ O2 → _____ SO3

b. _____ Fe2O3 + _____ H2 → _____ Fe + _____ H2O

c. _____ P + _____ O2 → _____ P4O10

d. _____ Al + _____ N2 → _____ AlN