Chem 2024 Fall Final-Honors Chemistry

Front

What is a Physical Change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition. Examples include changes in phase, size, or shape.

Front

What determines the physical behavior of a gas?

Back

The physical behavior of a gas is determined by the amount of gas, pressure of the gas, and temperature of the gas.

Front

What does Boyle's Law state?

Back

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

Front

What is an Element?

Back

A substance that consists of only one type of atom and cannot be broken down into simpler substances.

Front

What happens to the volume of a gas in a flexible container as the number of gas particles increases?

Back

The volume will increase.

Front

What is a Chemical Change?

Back

A change that results in the formation of new chemical substances. Examples include combustion, rusting, and digestion.

Front

Define a Homogeneous Mixture.

Back

A mixture that has a uniform composition throughout. Examples include saltwater and air.

Front

What is the difference between a Colloid and a Suspension?

Back

A colloid is a mixture where tiny particles are dispersed throughout but do not settle out, while a suspension contains larger particles that can settle out over time.

Front

What is the Ideal Gas Law?

Back

The Ideal Gas Law is an equation of state for an ideal gas, represented as PV=nRT, where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is temperature.

Front

What is the significance of the gas constant (R) in the Ideal Gas Law?

Back

The gas constant (R) relates the pressure, volume, and temperature of a gas in the Ideal Gas Law and has different values depending on the units used.