Chemistry Benchmark Exam 2025

Front

What does the symbol (aq) represent in a chemical equation?

Back

(aq) indicates that a substance is dissolved in water, forming an aqueous solution.

Front

As concentration increases, what happens to the number of solute particles in a given volume?

Back

The number of solute particles increases, and the proportion of the solvent decreases.

Front

How many significant figures are in the speed of light, 3.0 x 10^8 m/s?

Back

There are 2 significant figures in the speed of light.

Front

What is a solution where the solvent is water called?

Back

An aqueous solution.

Front

What happens to the volume of a gas when the temperature increases at constant pressure?

Back

The volume will increase because the particles will move faster.

Front

What does the symbol (s) represent in a chemical equation?

Back

(s) indicates that a substance is in solid state.

Front

What does the symbol (l) represent in a chemical equation?

Back

(l) indicates that a substance is in liquid state.

Front

What is the definition of a solute?

Back

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

Front

What is the definition of a solvent?

Back

A solvent is the substance that dissolves a solute, forming a solution.

Front

What is the relationship between temperature and gas volume at constant pressure?

Back

According to Charles's Law, the volume of a gas is directly proportional to its temperature in Kelvin at constant pressure.