AP Chemistry Semester 1 Review

Front

What is average atomic mass?

Back

The weighted average of the masses of an element's isotopes, taking into account their relative abundances.

Front

How do you calculate average atomic mass with isotopes?

Back

Multiply the mass of each isotope by its relative abundance (as a decimal), then sum the results.

Front

What happens to pressure when volume increases in a gas?

Back

Pressure decreases, according to Boyle's Law, which states that pressure and volume are inversely related.

Front

What is the electron configuration of a neutral chlorine atom?

Back

1s² 2s² 2p⁶ 3s² 3p⁵.

Front

What is oxidation in a chemical reaction?

Back

Oxidation is the process where a substance loses electrons.

Front

What is reduction in a chemical reaction?

Back

Reduction is the process where a substance gains electrons.

Front

What is the electron configuration for Aluminum (Al)?

Back

1s² 2s² 2p⁶ 3s² 3p¹.

Front

What is the significance of isotopes in chemistry?

Back

Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons, affecting their atomic mass.

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 principle of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.