Nature of Solutions

Granulated sugar dissolves ................. than sugar cubes

• slower

• faster

Tags

NGSS.HS-PS1-3

Solutions are ............................. that may be solid, liquid, or gaseous.

• heterogeneous mixtures

• homogeneous mixtures

Agitation (stirring or shaking) affects only the rate at which a solid solute dissolves.

• True

• False

An insoluble substance remains undissolved regardless of how vigorously or for how long the solvent/solute system is agitated.

• True

• False

At higher temperatures, the kinetic energy of water molecules is lower than at lower temperatures, so the molecules move faster.

• True

• False

Tags

NGSS.HS-PS3-2

The more rapid motion of the solvent molecules leads to an increase in the frequency and the force of the collisions between water molecules and the surfaces of the sugar crystals.

• True

• False

Tags

NGSS.HS-PS1-5

NGSS.HS-PS2-1

Larger particles in granulated sugar expose a much greater surface area to the colliding water molecules.

• True

• False

The more surface area of the solute that is exposed, the faster the rate of dissolving

• True

• False

A ............................... contains the maximum amount of solute for a given quantity of solvent at a constant temperature and pressure.

• super saturated solution

• saturated solution

• unsaturated solution

In a saturated solution, a state of dynamic equilibrium exists between the solution and any undissolved solute, provided that the temperature remains constant.

• True

• False