Question

Write balanced chemical equations for
1. digestion of food in our body.
2. Rusting of iron.
3. Heating of manganese dioxide with aluminium powder.
4. Blue colour of copper sulphate solution disappears when iron fillings are added.
5.Dilute HCL acid is added to NaOH solution to form sodium chloride and water.

Answer 1

1.C6H12O6 + 6O2 -> 6H20 + 6CO2
2.4Fe + 3O2 + 6H2O → 4Fe(OH)3.
3.3MnO2 + 3Al → 2Al2O3 + 3Mn
4.Fe(s) + CuSO4(aq) -----FeSO4(aq) + Cu(s)
5.HCl+NaOH-----NaCl+H2O