(40) GCSE Chemistry Revision "Using Moles to Balance Equations"

Mole

The amount of a substance that contains as many elementary entities as there are atoms in 12 g of carbon-12.

Relative Formula Mass

The sum of the relative atomic masses of the atoms in a chemical formula.

Balancing Chemical Equations

Adjusting the coefficients of reactants and products in a chemical equation to ensure the same number of each type of atom on both sides.

Hydrogen Chloride

A compound formed from hydrogen and chlorine, represented by the chemical formula HCl.

Iron(II) Oxide

A chemical compound composed of iron and oxygen, with the formula FeO.

Aluminium Sulfate

A chemical compound with the formula Al2(SO4)3, commonly used in water purification.

Barium Sulfate

A chemical compound with the formula BaSO4, often used in medical imaging.

Aluminium Chloride

A compound with the formula AlCl3, used in various chemical processes.

Lowest Possible Ratio

The simplest form of mole ratios in a balanced chemical reaction.

Coefficient

A number that is placed in front of a chemical formula in a balanced equation to indicate how many molecules or moles of that substance are involved.