Iodate ion reacts with sulphite ion to give sulphate ion and iodide ion. Write a balanced net ionic equation for the reaction.

Balance the following ionic equation by oxidation number method.

${\mathrm{Fe}}^{2+}+{\mathrm{H}}_2{\mathrm{O}}_2 \to {\mathrm{Fe}}^{3+}+{\mathrm{H}}_2\mathrm{O}$

Balance the following ionic equation by oxidation number method.

Balance the following ionic equation by oxidation number method.

${\mathrm{H}}_2\mathrm{S}+{\mathrm{MnO}}_4^{-} \to \mathrm{S}+{\mathrm{Mn}}^{+2}+{\mathrm{H}}_2\mathrm{O}$

Balance the following ionic equation by oxidation number method.

Balance the following ionic equation by oxidation number method.

${\mathrm{H}}_2{\mathrm{C}}_2{\mathrm{O}}_4+{\mathrm{MnO}}_4^{-} \to {\mathrm{CO}}_2+{\mathrm{Mn}}^{+2}+{\mathrm{H}}_2\mathrm{O}$