Question

Solid sodium hydroxide decomposes into solid sodium oxide and gaseous water . Write a balanced chemical equation for this reaction.

Answer 1

2 NaOH(s) → Na2O(s) + H2O(g)

Step-by-step explanation:

Step 1: Data given

Solid sodium hydroxide decomposes into solid sodium oxide and gaseous water

Step 2: The balanced equation

NaOH(s) → Na2O(s) + H2O(g)

On the right side we have 2 times Na, so on the left side we have to multiply NaOH by 2. Now we have 2x Na on both sides.

2 NaOH(s) → Na2O(s) + H2O(g)

Now on both sides we have 2x Na, 2x O and 2x H

The equation is balanced.