Give two balanced equations to show thermal dissociation.

Name:

(a) two coloured oxides that do not decompose on heating.

(b) a carbonate that is stable to heat

(c) an oxide formed during thunder and lighting.

(d) the compound formed when phosphorus and oxygen combines.

Write balanced equations for the following and identify the type of chemical reaction.

(a) Iron reacts with chlorine to form iron (III) chloride.

(b) Calcium oxide combines with silicon dioxide to form calcium silicate.

(c) Hydrogen peroxide produces water and oxygen.

A silvery white metal A is in the form of a ribbon. It burns with a dazzling white flame to form a white powder B. When water is added to powder B, it partially dissolves to form a substance C.

(a) What is metal A ?

(b) Write the equation for the conversion of A to B and state the type of reaction.

(c) Write a balanced equation for the conversion of B to C and state the type of reaction.