Physical Science 12th Edition By Bill Tillery – Test Bank

Chapter 11 Water and Solutions

1) A solution is a heterogeneous mixture of two or more substances.

Answer: FALSE
Section: 11.02
Topic: Solutions
Bloom’s: 2. Understand
Accessibility: Keyboard Navigation
Gradable: automatic

2) Water containing large amounts of Mg2+ and Ca2+ ions is said to be hard because it is difficult to make the soap bubble and lather when mixed with water.

Answer: TRUE
Section: 11.04
Topic: Aqueous Solutions
Bloom’s: 3. Apply
Accessibility: Keyboard Navigation
Gradable: automatic

3) A solution is saturated when no more of a solute will dissolve in a solvent.

Answer: TRUE
Section: 11.02
Topic: Solutions
Bloom’s: 3. Apply
Accessibility: Keyboard Navigation
Gradable: automatic

4) The solubility of a gas in water decreases as the water temperature increases.

Answer: TRUE
Section: 11.02
Topic: Solutions
Bloom’s: 2. Understand
Accessibility: Keyboard Navigation
Gradable: automatic

5) The rule “like dissolves like” explains why liquids are generally soluble in other liquids.

Answer: FALSE
Section: 11.02
Topic: Solutions
Bloom’s: 3. Apply
Accessibility: Keyboard Navigation
Gradable: automatic

6) Cooks add a small amount of salt to water to increase its boiling point since it is known that solutions boil at a higher temperature than pure water.

Answer: FALSE
Section: 11.03
Topic: Solutions
Bloom’s: 2. Understand
Accessibility: Keyboard Navigation
Gradable: automatic

7) The presence of solute molecules makes a solution freeze at a lower temperature than the pure solvent.

Answer: TRUE
Section: 11.03
Topic: Solutions
Bloom’s: 2. Understand
Accessibility: Keyboard Navigation
Gradable: automatic

8) Highway road crews sometimes spread salt on icy roads during the winter because the solution process generates heat, which melts the ice.

Answer: FALSE
Section: 11.03
Topic: Solutions
Bloom’s: 2. Understand
Accessibility: Keyboard Navigation
Gradable: automatic

9) The dye litmus turns blue in basic solutions.

Answer: TRUE
Section: 11.04
Topic: Acids and Bases
Bloom’s: 2. Understand
Accessibility: Keyboard Navigation
Gradable: automatic

10) A strong acid is a concentrated solution acid.

Answer: FALSE
Section: 11.04
Topic: Acids and Bases
Bloom’s: 3. Apply
Accessibility: Keyboard Navigation
Gradable: automatic