QUESTION 1 Aerosols constitute an important part of the nuclei for the condensation of water droplets.

QUESTION 3

Chelation is defined as a reaction of a metal ion with an organic molecule. Chelates are normally negative in charge and are therefore not fixed to the soil surface. The reason being that soil is negatively charged, so the soil surface typically repels the Chelates. Metals, on the other hand, are positively charged, so the positive ions of the metals are attracted to the soil surface

QUESTION 8

The equilibrium constant is defined by;

Consider a solution of 5%  in 95% calcium carbonate in equilibrium with  and. The composition of the suspension is as follows.