Chemistry III

Cations

100

Sodium cation

What is Na⁺?

200

Aluminium cation

What is Al³⁺?

300

Ammonium cation

What is NH₄⁺?

400

The two ions of iron

What are Fe²⁺ and Fe³⁺?

500

An positive ion that is made of more than one atom bonded covalently.

What is a polyatomic cation?

Anions

100

Bromide ion

What is Br^-?

200

Oxide ion

What is O^2-?

300

Hydroxide ion

What is OH^-?

400

Sulfate ion

What is SO₄^2-?

500

Carbonate ion

What is CO₃^2-?

Chemical Formula

100

Barium iodide

What is BaI₂?

200

Silicon dioxide

What is SiO₂?

300

Ammonium carbonate

What is (NH₄)₂CO₃?

400

Zinc hydroxide

What is Zn(OH)₂?

500

Copper (II) sulfide

What is CuS?

Mole Concept

100

6.02 x 10²³

What is Avogadro's constant?

200

The mass of one mole of a substance in grams.

What is molar mass?

300

The mass of an atom compared to 1/12th of the mass of a carbon-12 atom.

What is relative atomic mass?

400

The volume of this at room temperature and pressure is 24dm³

What is the volume of 1 mol of a gas?

500

Mass in grams divided by relative molecular mass.

What is the number of moles of a compound?

Chemical Calculations

100

The A_r of zinc

What is 65?

200

The M_r of potassium hydroxide

What is 56?

300

The M_r of iron (II) sulfate

What is 152?

400

The number of moles of water molecules in 450 g of water?

What is 25 mol?

500

The mass of 0.8 mol of lead oxide

What is 178.4 grams?