AP Chemistry Unit 3 Review

Front

What type of bonding is present in Copper (II) nitride, Cu3N2?

Back

Ionic bonding.

Front

What is a nonelectrolyte?

Back

A dissolved solute that does not form ions.

Front

Why is hydrogen bonding considered a strong intermolecular force?

Back

There is an attraction between a small, weakly electronegative hydrogen atom and a large, strongly electronegative atom of fluorine, nitrogen, or oxygen.

Front

How do you calculate the molar mass of a gas given its density, pressure, and temperature?

Back

Use the ideal gas law: Molar mass = (density * R * T) / P.

Front

What is the normal melting point of a substance with a melting point of -50 °C?

Back

-50 °C.

Front

Define ionic bonding.

Back

Ionic bonding is the electrostatic attraction between oppositely charged ions.

Front

What is the difference between an electrolyte and a nonelectrolyte?

Back

An electrolyte dissociates into ions in solution, while a nonelectrolyte does not.

Front

List the three elements that commonly form hydrogen bonds.

Back

Fluorine, nitrogen, and oxygen.

Front

What is the significance of the ideal gas law in chemistry?

Back

It relates the pressure, volume, temperature, and number of moles of a gas.

Front

What is the formula for calculating density?

Back

Density = mass/volume.