Write down the equations for the following substitution reactions: a) grade 3 iron oxide + aluminum – b) grade 3 iron oxide + hydrogen – c) grade 2 copper chloride + aluminum – d) grade 4 lead oxide + carbon – e) grade 3 iron bromide + chlorine –
1. As a result of the reaction between iron (III) oxide and aluminum, aluminum oxide and iron are formed.
Fe2O3 + 2Al = Al2O3 + 2Fe.
2. The reaction of iron (III) oxide and hydrogen proceeds with the reduction of iron from its oxide and the formation of water.
Fe2O3 + 3H2 = 2Fe + 3H2O.
3. The reaction of aluminothermy is the reduction of metal from its oxide by aluminum. Copper and aluminum chloride are formed.
3 CuCl2 + 2Al = 2AlCl3 + 3Cu.
4. The reaction of carbon reduction of lead from its oxide. Lead and carbon dioxide are formed.
PbO2 + C = Pb + CO2.
2 FeBr3 + 3Cl2 = 2FeCl3 + 3Br2.
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