When a magnesium ribbon is heated, it burns in air to form magnesium oxide.

Write a balanced chemical equation for this.

Name (i) substance oxidised and (ii) substance reduced.

Define the following in terms of gain or loss of hydrogen with one example each:

(i) oxidation (ii) reduction

What happens when a piece of iron metal is placed in a copper sulphate solution? Name the type of reaction involved.

In the reaction represented by the following equation:

$\mathrm{CuO}\left(\mathrm{s}\right)+{\mathrm{H}}_2\left(\mathrm{g}\right)\to \mathrm{Cu}\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)$
(a) name the substance oxidised
(b) name the substance reduced
(c) name the oxidising agent
(d) name the reducing agent