(a) State two differences in the chemical properties of metals and non-metals. (b) List two general methods of extract metals from their ores.

(a) Define oxidation in terms of electron transfer. (b) Consider the following: Cu\(_{(s)}\) + 2Ag\(^{+}_{(Ag)}\) \(\to\) Cu\(^{2+}_{(aq)}\) + 2Ag\(_{(s)}\) ...

When ethane - 1,2-dioic acid is heated with concentrated tetraoxosulphate (VI) acid, a reaction represented by the following equation occurs: (a) State the t...

(a) Give one example each of a naturally occurring substance that; (i) conforms to the general formula C(_x\)(H\(_2\)O)\(_y\); (ii) contains the carboxyl gro...

A shortened form of the Periodic Table is shown below. Use it to answer questions (a) and (b) (a) Which of the elements represented as A to E in the table, a...

(a) When MgSO\(_4\).XH\(_2\)O crystals were exposed to the atmosphere for several days, three was a loss in mass (i) What name is given to this phenomenon? (...

(a) Write an equation to show the action of strong heat on: (i) potassium trioxonitrate (V): (ii) sucrose. (b) State two observations in respect of the react...

(1)(a) State Avogadro's law (b) Which of the state of matter contains particles that are: (i) readily used (ii) held firmly together by some forces of cohesi...

(a) State whether entropy increases or decreases during each of the following processes (i) condensation of steam; (ii) melting of wax; (iii) dissolution of ...