Explain why mercury does not wet glass while water does.

(a) Explain what is meant by cations

(b) Draw and label an electrolytic cell

(a) State Faraday’s second law of electrolysis.

(b) An electric charge of 9.6 x 10\(^4\) C liberates 1 mole of substance containing 6.0 x 10\(^{23}\) atoms.  Determine the value of the electronic charge

Explain the following terms:

(a) tensile stress;

(b)Young’s modulus

a)        Define diffusion.
(b)        State two applications of electrical conduction through gases.