Ncert Exercises & Solutions

Question 10.28:

Write balanced equations for reactions between

(a) Na₂O₂ and water

(b) KO₂ and water

(a) The balanced chemical equation for the reaction between Na₂O₂ and water is:

2 {Na}_{2} O_{2 (s)} + 2 H_{2} O_{(l)} \to 4 {NaOH}_{(aq)} + O_{2 (aq)}

(b) The balanced chemical equation for the reaction between KO₂ and water is:

2 {KO}_{2 (s)} + 2 H_{2} O_{(l)} \to 2 {KOH}_{(aq)} + H_{2} O_{2 (aq)} + O_{2 (g)}

{Na}_{2} O_{(s)} + {CO}_{2 (g)} \to {Na}_{2} {CO}_{3}