Open main menu

Hydrochloric Acid

Contents

Key Stage 3

Key Stage 4

Meaning

Hydrochloric Acid is an acid with the chemical formula HCl.

About Hydrochloric Acid

Hydrochloric Acid reacts with metals and bases to produce Chloride salts.

Hydrochloric Acid and Metals

Hydrochloric Acid + SodiumSodium Chloride + Hydrogen
2HCl + 2Na → 2NaCl + H2
Hydrochloric Acid + MagnesiumMagnesium Chloride + Hydrogen
2HCl + Mg → MgCl2 + H2
Hydrochloric Acid + AluminiumAluminium Chloride + Hydrogen
6HCl + 2Al → 2AlCl3 + 3H2

Hydrochloric Acid and Metal Oxides

Hydrochloric Acid + Sodium OxideSodium Chloride + Water
2HCl + Na2O → 2NaCl + H2O
Hydrochloric Acid + Magnesium OxideMagnesium Chloride + Water
2HCl + MgO → MgCl2 + H2O
Hydrochloric Acid + Aluminium OxideAluminium Chloride + Water
6HCl + Al2O3 → 2AlCl3 + 3H2O

Hydrochloric Acid and Metal Hydroxides

Hydrochloric Acid + Sodium HydroxideSodium Chloride + Water
HCl + Na2OH → NaCl + H2O
Hydrochloric Acid + Magnesium HydroxideMagnesium Chloride + Water
2HCl + Mg(OH)2 → MgCl2 + 2H2O
Hydrochloric Acid + Aluminium HydroxideAluminium Chloride + Water
3HCl + Al(OH)3 → AlCl3 + 3H2O

Hydrochloric Acid and Metal Carbonates

Hydrochloric Acid + Sodium CarbonateSodium Chloride + Carbon Dioxide + Water
2HCl + Na2CO3 → 2NaCl + CO2 + H2O
Hydrochloric Acid + Magnesium CarbonateMagnesium Chloride + Carbon Dioxide + Water
2HCl + MgCO3 → MgCl2 + CO2 + H2O
Hydrochloric Acid + Aluminium CarbonateAluminium Chloride + Carbon Dioxide + Water
6HCl + Al2(CO3)3 → 2AlCl3 + 3CO2 + 3H2O

References

AQA

Hydrochloric acid, pages 46,48, GCSE Biology; Third Edition, Oxford University Press, AQA

Edexcel

Hydrochloric acid, page 113, GCSE Biology, Pearson, Edexcel
Hydrochloric acid, page 79, GCSE Combined Science, Pearson Edexcel