Balance the following equations by oxidation no. method.` S + HNO_3 rarr H_2SO_4 + NO_2 + H_2O`.

Balance the following equations by oxidation no. method. MnO_4^(-) + Fe^(2+) rarr Mn^(2+) + Fe^(3+) (Acidic medium) .

Balance the following equation : SO2 + O2 → SO3

Balance the following equation by oxidation number method. Fe^(+2) + Cr_(2)O_(7)^(-2) + H^(+) rarr Fe^(+3) + Cr^(+3) + H_(2)O .

Balance the following equations. (i) H_2S (g) + SO_2 (g) rarr S (s)+ H_2O (l)

Balance the following equation : H2S + O2 → H2O + SO2

Is following equations are balanced? Zn +H_2SO_4 rarr Zn SO_4+H_2

Balance the following chemical equations: NaOH + H_2SO_4 + H_2O

Balance the equations H2O2 → H2O + O2

Balance the following equation : Ca + H2O → Ca(OH)2 + H2