What would you observe when zinc is added to a solution of iron $(II) $ sulphate ? Write the chemical reaction that takes place.
Zinc is more reactive than iron. Therefore, if zinc is added to a solution of iron $II$ sulphate, then it would displace iron from the solution.
$\text{Z}{{\text{n}}_{(s)}}\,+\,FeS{{O}_{4(aq)}}\,\to \,ZnS{{O}_{4(aq)}}\,+\,F{{e}_{(s)}}$
Define the following terms.
$(i)$ Mineral $(ii)$ Ore $(iii)$ Gangue
What type of oxides are formed when non-metals combine with oxygen?
You are given a hammer, a battery, a bulb, wires and a switch.
$(a)$ How could you use them to distinguish between samples of metals and non-metals ?
$(b)$ Assess the usefulness of these tests in distinguishing between metals and non-metals.
Write equations for the reactions of
$(i)$ iron with steam
$(ii)$ calcium and potassium with water
State two ways to prevent the rusting of iron.