Cations
Anions
Chemical Formula
Mole Concept
Chemical Calculations
100

Sodium cation

What is Na+?

100
Bromide ion

What is Br-?

100
Barium iodide

What is BaI2?

100

6.02 x 1023

What is Avogadro's constant?

100

The Ar of zinc

What is 65?

200
Aluminium cation

What is Al3+?

200

Oxide ion

What is O2-?

200
Silicon dioxide

What is SiO2?

200

The mass of one mole of a substance in grams.

What is molar mass?

200

The Mr of potassium hydroxide

What is 56?

300

Ammonium cation

What is NH4+?

300

Hydroxide ion

What is OH-?

300

Ammonium carbonate

What is (NH4)2CO3?

300

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

What is relative atomic mass?

300

The Mr of iron (II) sulfate

What is 152?

400

The two ions of iron

What are Fe2+ and Fe3+?

400

Sulfate ion

What is SO42-?

400

Zinc hydroxide

What is Zn(OH)2?

400

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

What is the volume of 1 mol of a gas?
400
The number of moles of water molecules in 450 g of water?

What is 25 mol?

500
An positive ion that is made of more than one atom bonded covalently.

What is a polyatomic cation?

500

Carbonate ion

What is CO32-?

500

Copper (II) sulfide

What is CuS?

500
Mass in grams divided by relative molecular mass.
What is the number of moles of a compound?
500

The mass of 0.8 mol of lead oxide

What is 178.4 grams?

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