AP Chemistry Semester 1 Review

Front

What property increases as Intermolecular Forces increase?

Back

Melting point increases as intermolecular forces increase.

Front

What is the relationship between kinetic energy of molecules and temperature?

Back

Kinetic energy of molecules is directly proportional to temperature.

Front

What is the average atomic mass of an element with isotopes 10 amu and 11 amu?

Back

The average atomic mass is 10.8 amu.

Front

Under what conditions do real gases most resemble ideal gases?

Back

Real gases most resemble ideal gases at low pressure and high temperature.

Front

Which substance exhibits ion-ion attractions?

Back

MgCl2 exhibits ion-ion attractions.

Front

Define intermolecular forces.

Back

Intermolecular forces are the forces of attraction or repulsion between neighboring particles (atoms, molecules, or ions).

Front

What is the effect of increasing temperature on vapor pressure?

Back

Increasing temperature generally increases vapor pressure.

Front

Explain the concept of ideal gas law.

Back

The ideal gas law relates pressure, volume, temperature, and number of moles of a gas: PV = nRT.

Front

What is the significance of the average atomic mass?

Back

Average atomic mass reflects the weighted average of all isotopes of an element based on their natural abundance.

Front

Describe the difference between ionic and covalent bonds.

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.