Is it possible to change the temperature and pressure of a fixed mass of gas without changing it's volume. Explain your answer.

Complete the following equations in words and then write the balanced molecular equation in each case.

(a) Zinc nitrate + sodium carbonate ⟶ …………… + ……………

(b) Iron (II) sulphate (ferrous sulphate) + sodium hydroxide ⟶ …………… + ……………

Name a homogeneous mixture of :

(a) a liquid and a solid

(b) two liquids

The formula of the nitride of a metal X is XN, state the formula of :

(i) it's sulphate (ii) it's hydroxide.