NC Chemistry Exam Review 2019 (Leftovers)

Front

What is a catalyst?

Back

A substance that increases the rate of a chemical reaction without being consumed in the process.

Front

How does a catalyst affect activation energy?

Back

A catalyst lowers the activation energy required for a reaction to occur.

Front

What is an Arrhenius base?

Back

A substance that produces hydroxide ions (OH⁻) in solution.

Front

What happens to gas pressure when volume is increased at constant temperature?

Back

The pressure decreases according to Boyle's Law.

Front

What is solubility?

Back

The maximum amount of solute that can dissolve in a given amount of solvent at a specific temperature.

Front

What is a saturated solution?

Back

A solution that contains the maximum amount of solute that can dissolve at a given temperature.

Front

What is a supersaturated solution?

Back

A solution that contains more solute than can normally dissolve at a given temperature.

Front

How do you calculate moles from molarity and volume?

Back

Moles = Molarity (M) × Volume (L).

Front

What is the relationship between pressure and volume in gases?

Back

According to Boyle's Law, pressure is inversely proportional to volume at constant temperature.

Front

What is the formula for calculating the number of moles in a solution?

Back

Number of moles = Concentration (mol/L) × Volume (L).