Chemical formula


Interactive Chemistry Worksheets for Students


Periodic table

Naming compounds

Basic formula

Simple compounds

Ionic compounds 1

Ionic compounds 2

Chemical suffixes

Old chemical names

Hydrocarbons - Alkanes

Alkanes, alkenes & alkynes

Alkanols to alkanoic acids


Common compounds

Common formula quiz

Acids, bases and salts

Covalent compounds

Printable worksheets


Formula calculators

Chemical formula calculator





Naming chemical compounds




Naming chemical symbols



Student lessons

Teacher resources

Why are lemons sour?

Lemons are sour because they each contain a chemical called citric acid.

Citric acid is a weak organic acid found in citrus fruits like grapefruit, oranges, limes and lemons.

In its pure form citric acid is a white crystalline solid and is sour to taste like all food acids. It is sold as a food addictive for cooking and can be found in most supermarkets.

What is rusting?

Corrosion is the loss of metallic properties of a metal due to oxidation and is accompanied by the formation of unwanted products. Copper, iron and aluminum metals all corrode over time loosing strength, lustre and electrical conductivity.

The rusting of iron

A wedding ring of soot?

Diamond, graphite and soot are all made of carbon atoms. So on your wedding day why not save money and buy a cheaper wedding ring made from soot?

Well, you may need to learn a bit of chemistry to help your marriage survive!