Write the chemical formula of Iron [II] hydroxide in a step-by-step manner.

Write the chemical formula of Iron [III] sulphide in a step-by-step manner.

What is a chemical equation. How it is represented. Differentiate between a 'word equation' and a 'molecular equation' with a suitable example.

State the information provided by a chemical equation. Chemical equations suffer from a number of limitations. State the main limitations of a chemical equation.