Substances, Mixtures & Solubility Review

Front

What is a mixture?

Back

A combination of two or more substances that are not chemically bonded.

Front

What is a solvent?

Back

The part of a solution that dissolves the solute; it is usually present in the largest amount.

Front

What is a solute?

Back

The substance that is dissolved in a solution.

Front

What is solubility?

Back

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

Front

What happens to the solubility of most solids as temperature increases?

Back

Most solids become more soluble as temperature increases.

Front

What is distillation?

Back

A separation technique that involves heating a liquid to create vapor and then cooling the vapor to create a liquid.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

Which substance is least soluble in water at room temperature: NaCl, KCl, or SO2?

Back

SO2 does not increase in solubility as temperature increases.

Front

What is the role of temperature in solubility?

Back

Temperature can affect how much solute can dissolve in a solvent; generally, higher temperatures increase solubility for solids.

Front

What is an example of a homogeneous mixture?

Back

Saltwater is a homogeneous mixture because the salt is evenly distributed throughout the water.