Question

Translate the following statements into chemical equations and then balance them. 1. phosphorous burns in oxygen to give phosphorous pentoxide. 2. carbon disuphide burns in air to give carbon dioxide and sulphur dioxide 3. hydrogen sulphide gas burns in air to give water and sulphur dioxide 4. aluminium metal replaces iron from ferric oxide Fe2O3 giving aluminium oxide and iron.

Answer 1

1)   phosphorous burns in oxygen to give phosphorous pentoxide.

4P(s) + 5O2 (g)------>  2P2O5(s)

2) Carbon disulphide burns in air to give carbon dioxide and sulphur dioxide:

CS2 (s) +  3O2(g) -------> 2SO2 (g)+ CO2(g)

3)Hydrogen sulphide gas burns in air to give H2O and Sulphur dioxide:

2H2S(g)  +  3O2(g) ---------->    2SO2(g) + 2H2O(g)

4)Aluminium metal replaces iron from ferric oxide giving aluminium oxide and iron:

Fe2O3(s) + 2 Al(s)  ---------->   Al2O3 (s) +  2Fe(s)

Answer 2

Here is the answer...........