Q2 122024MPC

Front

What is solubility?

Back

Solubility is the ability of a substance (solute) to dissolve in a solvent, forming a solution. It is often expressed in terms of the maximum amount of solute that can dissolve in a given amount of solvent at a specific temperature.

Front

Which solid is insoluble in water: sugar, sand, copper sulfate, or salt?

Back

Sand is insoluble in water.

Front

What state of matter are water particles in when they are moving around each other?

Back

The particles of water are in a liquid state when they are moving around each other.

Front

What can be said about the boiling points of liquids in two beakers containing the same substance?

Back

The boiling point of the liquid in each beaker is the same, regardless of the volume.

Front

What does it mean for a solution to be concentrated?

Back

A concentrated solution has a large amount of solute relative to the amount of solvent.

Front

If 20 g of solute is added to two beakers of water, how do you determine which is more concentrated?

Back

The beaker with less water is more concentrated because it has the same amount of solute in a smaller volume of solvent.

Front

What is a contaminant?

Back

A contaminant is a substance that makes something impure or unclean, often referring to pollutants in water or air.

Front

Which of the following is a common water contaminant: sediment, fertilizer, bacteria, or gasoline?

Back

Fertilizer is a common water contaminant.

Front

What is the difference between a solute and a solvent?

Back

A solute is the substance that is dissolved in a solution, while a solvent is the substance that dissolves the solute.

Front

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

Back

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