Solutions | Exit Quiz | Oak National Academy

What happens when a solute dissolves in a solvent?

• A chemical reaction occurs.

• A solution is formed.

• The solvent evaporates.

• A precipitate is formed.

Answer explanation

When a solute dissolves in a solvent, a solution is formed. This is a physical change, not a chemical reaction.

What is a solvent in a solution?

• The substance being dissolved.

• The liquid that dissolves a substance.

• The chemical that reacts.

• The solid part of a solution.

• The visible part of a solution.

Answer explanation

A solvent is the liquid in which a solute dissolves.

Which term describes a substance that does not dissolve in a solvent?

(a)  

Answer explanation

A substance that does not dissolve in a solvent is described as insoluble.

Match the state symbol to its meaning.

• (s)

• gas

• (l)

• liquid

• (aq)

• solid

• (g)

• dissolved in water

Answer explanation

State symbols in chemical equations indicate the physical state of the substances involved, or if something has been dissolved in water.

If a substance is highly soluble (has a high solubility) in water, it means it can (a)   easily in water.

Answer explanation

If a substance is highly soluble in water, it means it can dissolve easily in water.

Not everything is soluble in water. We can try and use a different (a)   (e.g. ethanol) to dissolve substances if they are not water soluble.

Answer explanation

Not everything is soluble in water. We can try and use a different solvent (e.g. ethanol) to dissolve substances if they are not water soluble.