State one use each of the following non-metals: Copper, Aluminium, Iron, Silver, Gold, Mercury
Give one use each of the following metals:
(a) Iron (b) Copper (c) Aluminium (d) Zinc (e) Mercury
State the chemical symbols for the following elements:
Sodium, Potassium, Iron, Copper, Mercury, Silver.
Calamine ore can be used to extract one of the following metals. This metal is: (a) copper (b) mercury (c) aluminium (d) zinc