C: PbO + Zn → ZnO + Pb
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Equations for reactions of iron and iron compounds are shown. Fe + 2HCl → FeCl2 + H2 2FeCl2 + Cl2 → 2FeCl3 FeSO4 + Mg…
A metal M forms a chloride which dissolves in cold water and has an oxide which dissolves in both strong acids and st…
Which element has a variable oxidation state, can act as a catalyst and forms coloured compounds?
The gases coming from a car's exhaust contain oxides of nitrogen. How are these oxides formed?
When a volcano erupts, which gas is produced in significant amounts?
Compound X is a hydrocarbon. It reacts with steam to form an alcohol. Which type of compound is X and what would be i…