Phy Sci 6

Front

What factors affect the solubility of a solute?

Back

The solubility of a solute depends on the nature of the solute and the temperature.

Front

What type of mixture can be separated by filtering?

Back

A heterogeneous mixture can be separated by filtering.

Front

How does molecular motion change as a substance transitions from solid to liquid to gas?

Back

As the phase changes occur, the freedom of motion of the particles increases.

Front

What is the solubility of sodium nitrate at 30°C in 100 grams of water?

Back

At 30°C, exactly 95 grams of sodium nitrate can dissolve completely in 100 grams of water.

Front

What is the phase transition called when solid carbon dioxide turns directly into gas?

Back

The phase transition is called sublimation.

Front

Define solubility.

Back

Solubility is the ability of a substance (solute) to dissolve in a solvent at a given temperature and pressure.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the components are not uniformly distributed and can be separated by physical means.

Front

What happens to the particles in a solid when it melts?

Back

When a solid melts, the particles gain energy and begin to move more freely, transitioning into a liquid state.

Front

What is the difference between a solution and a heterogeneous mixture?

Back

A solution is a homogeneous mixture where the solute is completely dissolved in the solvent, while a heterogeneous mixture has distinct components that can be seen and separated.

Front

What is evaporation?

Back

Evaporation is the process by which molecules at the surface of a liquid gain enough energy to enter the gas phase.