Distinguish between cracking and reforming. Of what importance are the two processes in the petroleum industry?

(a) Give one example of; (i) heavy chemicals (ii) fine chemicals (b) Write the structural formulae and the names of compounds having the formula CH\(_4\)CI,

(a) Name the major raw materials used in the manufacture of the following: (i) polythene (ii) margarine (iii) cement (b) State one problem associated with oi...

(a) Write the ionic equation for the reaction between zinc powder and silver trioxonitrate (VI) solution (b) Which substance in (a) above is (i) oxidized, (i...

(a) Arrange the following in their correct order of increasing energy: alpha particles, gamma rays and beta particles (b) State one difference between nuclea...

(a) What is a carbohydrate? (b) Name two types of carbohydrates and give one example of each type

(a) How does the collision theory explain the rate of a chemical reaction? (b) State how each of the following affects the rates of chemical reactions: (i) s...

50cm\(^{3}\) of sulphur (IV) oxide were produced at s.t.p. when some quantity of powdered sulphur were burnt in excess oxygen (a) Write the equation for the ...

(a) Name two allotropes of carbon (b) Name two products of the destructive distillation of coal and state one use of each.