Chem 2024 Fall Final

Front

What is an element?

Back

A substance in which all the atoms are the same.

Front

Which of the following is an example of an element? (Sugar, Salt, Water, Oxygen)

Back

Oxygen is an element.

Front

What happens to the pressure of a gas when its volume increases, according to Boyle's Law?

Back

The pressure decreases.

Front

What is Boyle's Law?

Back

Boyle's Law states that the pressure of a gas is inversely proportional to its volume at constant temperature.

Front

What is the formula for Boyle's Law?

Back

P1 * V1 = P2 * V2, where P is pressure and V is volume.

Front

What is an ideal gas?

Back

An ideal gas is a theoretical gas that perfectly follows the gas laws and has no intermolecular forces.

Front

What occurs during collisions between molecules in an ideal gas?

Back

Collisions are elastic, meaning they do not lose energy due to friction.

Front

What is a homogeneous mixture?

Back

A mixture in which the composition is uniform throughout.

Front

What is a colloid?

Back

A mixture where small particles are dispersed throughout but do not settle out.

Front

What is the difference between a solution and a colloid?

Back

A solution is a homogeneous mixture where the solute is completely dissolved, while a colloid has larger particles that remain suspended.