8th Grade 5.2 & 5.3

Multiple Choice

A solution in which more solute can be dissolved is called a(n) ______________ solution.

• saturated

• unsaturated

• stable

Multiple Choice

A solution in which 50 grams of solute is dissolved in 250 grams of solution has a concentration of ______ %.

• 20

• 50

• 5

Multiple Choice

When saturated solutions are ______ they usually become unsaturated solutions.

• cooled

• frozen

• heated

Multiple Choice

Ionic and polar compounds usually dissolve in _________ solvents

• ionic

• neutral

• polar

Multiple Choice

The concentration of a solution can be changed by ______________ solute.

• adding

• removing

• replacing

Multiple Choice

A solution in which only a little solute is dissolved in a certain amount of solvent is called a concentrated solution.

• true

• false

Multiple Choice

As the pressure of the gas over a solution decreases, the solubility of a gas solute in a liquid solvent increases.

• true

• false

Multiple Choice

The solubility of table sugar in water increases as the temperature increases.

• true

• false

Multiple Choice

The solubility of a gas dissolved in a liquid increases as the temperature of the liquid increases.

• true

• false

Multiple Choice

Three factors that affect the solubility of a substance are pressure, the type of solvent, and volume.

• true

• false

Multiple Choice

Which of the following is NOT a property of an acid?

• corrosive

• turns red litmus paper blue

• reacts with metals & carbonates

• tastes sour

Multiple Choice

Because it wears away certain materials, an acid is described as

• concentrated

• contaminated

• corrosive

• carbonated

Multiple Choice

Which of the following best describes bases?

• slippery & taste sour

• turn red litmus paper blue & react with metals

• taste bitter & react with carbonates

• turn red litmus paper blue & taste bitter

Multiple Choice

Which of the following best describes acids?

• taste sour & react with metals

• taste bitter & reacte with carbonates

• slippery & turn blue litmus paper red

• react with metals but not carbonates

Multiple Choice

A compound that changes color when it comes into contact with an acid or a base is a(n?

• ionic

• polar

• indicator

Multiple Choice

A base ____ with carbonates

• always reacts

• sometimes reacts

• never reacts

Multiple Choice

If carbon dioxide gas is produced when dilute acid is applied to a rock's surface, the rock is most likely made of

• limestone

• lava

• iron

Multiple Choice

Because vinegar contains a(n) ________ it tastes sour.

• acid

• base

• emulsion

Multiple Choice

Many soaps and detergents contain

• acids

• bases

• sulfur

Multiple Choice

The acid in the human stomach that aids in digestion is _____ acid.

• acetic

• sulfuric

• hydrochloric