Unit 2 Assessment

Front

What is the temperature (in °C) at which the solubility of NH₃ and NaNO₃ are the same?

Back

15°C

Front

Which substance has the highest boiling point: H₂, NH₃, N₂, or O₂?

Back

NH₃

Front

What happens to water vapor particles when rain condenses and freezes into ice?

Back

The water vapor particles slow down and come closer together.

Front

What rule states that atoms bond to reach 8 electrons in the outer shell?

Back

Octet Rule

Front

What term describes a solvent that contains as much solute as it can hold?

Back

Saturated

Front

Define solubility.

Back

The ability of a substance to dissolve in a solvent at a given temperature and pressure.

Front

What is the boiling point of water in °C?

Back

100°C

Front

What is the difference between saturated and unsaturated solutions?

Back

Saturated solutions contain the maximum amount of solute that can dissolve, while unsaturated solutions can still dissolve more solute.

Front

What is the principle of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.

Front

What is the definition of a solute?

Back

A substance that is dissolved in a solvent to form a solution.