Salt water is an example of a solution.

• True

• False

The temperature of a solvent can affect the rate of dissolving.

• True

• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

(E) A solute with higher solubility can dissolve faster than another solute with lower solubility.

• True

• False

Mixing oil and water can form a solution.

• True

• False

Sugar has different rates of dissolving at different temperatures.

• True

• False

Tags

NGSS.MS-PS1-4

(E) If a substance has a high solubility in water, it dissolves quickly in water.

• True

• False

Which of the following statements about the process shown is/are correct?

(1) Substance X is a solute and water is a solvent.

(2) Water is a solute and the blue liquid is a solvent.

(3) The blue liquid is a solution.

• A. (1) only

• B. (2) only

• C. (1) and (3) only

• D. (2) and (3) only

Tags

NGSS.MS-PS1-2

As water can dissolve many different substances, it is often called a

• A. universal indicator

• B. universal solute.

• C. universal solution

• D. universal solvent

Which of the following can make a substance dissolve faster in water?

(1) Crushing the substance into smaller pieces

(2) Increasing the rate of stirring

(3) Decreasing the temperature of water

• A. (1) and (2) only

• B. (1) and (3) only

• C. (2) and (3) only

• D. (1), (2) and (3)

In each of the beakers, the water temperatures, the volumes of water and the masses of the sugar are the same.

Arrange the set-ups in increasing order of the rate of dissolving of sugar.

• A. P, Q, R

• B. Q, P, R

• C. R, P, Q

• D. R, Q, P

Tags

NGSS.MS-PS1-2