Module H Test Review

Front

What is the mass of one mole of water (H2O)?

Back

18.02 g

Front

What is the mass of one gram formula mass of CuCl2?

Back

134.45 g

Front

What is the mass in grams of one mole of oxygen gas?

Back

32.00 g

Front

What is the representative particle in sulfur dioxide (SO2)?

Back

a molecule.

Front

What is the purpose of crucible tongs in a laboratory?

Back

To safely handle hot crucibles.

Front

Define 'mole' in chemistry.

Back

A mole is a unit that measures the amount of substance, equal to 6.02 x 10^23 representative particles.

Front

What is the formula mass of water (H2O)?

Back

18.02 g/mol.

Front

What is the significance of Avogadro's number?

Back

It defines the number of particles in one mole of a substance.

Front

What is a formula unit?

Back

The lowest whole number ratio of ions in an ionic compound.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of atoms bonded together.