Name __________________________________________________ Period______

4.5.2 Quiz

Properties of Acids and Bases

1. Which common substance does NOT contain an acid?

a)        vinegar

b)         orange juice

c)        table salt

d)        soft drinks

2. An acid which ionizes completely in water is a _____.

a)        strong electrolyte

b)        weak electrolyte

c)        nonelectrolyte

d)        base

3. Some acids are weak electrolytes, while other acids are strong electrolytes.

a)        True

b)         False

4. The following reversible reaction has a small value of Keq, so that the reactants are favored.

HClO is classified as a _____ electrolyte.

a)        strong

b)        weak

5. Which is NOT a property of an acid?

a)        turn litmus red

b)         react with some metals to produce hydrogen gas

c)        turn phenolphthalein pink

d)        sour taste

6. Substances which change color in the presence of acids or bases are called _____.

a)        salts

b)        indicators

c)        alcohols

d)        catalysts

7. In the presence of an acid, the color of litmus is _____, while the color of phenolphthalein is _____.

a)        blue; pink

b)        blue; colorless

c)        red; blue

d)        red; colorless

8. What is an active metal?

a)        a transition metal

b)        a metal with only one valence electron

c)        a metal that reacts with oxygen

d)        a metal that is above hydrogen in the activity series

9. Write the balanced chemical equation showing the reaction of magnesium metal with hydrochloric acid.

10. What substances are produced when an acid reacts with a base?

a)        a salt and water

b)        a sugar and water

c)        a salt and hydrogen gas

d)        carbon dioxide and water

11. Bases tend to taste _____.

a)        sour

b)         sweet

c)        salty

d)        bitter

12. A base which ionizes completely in water is a _____.

a)        nonelectrolyte

b)        strong electrolyte

c)        weak electrolyte

d)        No bases ionize completely in water.

13. Some bases are weak electrolytes, while other bases are strong electrolytes.

a)        True

b)        False

14. The following reaction has a small value of Keq, so that the reactants are favored.

NH3 is classified as a _____ electrolyte.

a)        strong

b)         weak

15. Which is NOT a property of a base?

a)        turn litmus blue

b)        reacts with acids

c)        reacts with metals

d)        slippery feel

16. Bases are present more often in foods than acids are.

a)        True

b)        False

17. In the presence of a base, the color of litmus is _____, while the color of phenolphthalein is _____.

a)        blue; pink

b)        blue; colorless

c)        red; blue

d)        red; pink

18. What common household item contains a base?

a)        rubbing alcohol

b)        tomato sauce

c)        drain cleaner

d)        vinegar

19. What is the usual purpose of an antacid?

20. Which substance is a common component of antacids?

a)        H2SO4

b)        NaClO

c)        CH3OH

d)        Mg(OH)2