Question

Which compound is correctly balanced by charge in the following reaction?

Answer 1

Answer:A,D

Explanation:

Option a:

Sodium has charge $+1$

Hydroxide has charge $-1$.

So,sodium hydroxide is balanced.

Option b:

Magnesium has charge $+2$

Two sulphates has a charge of $-2\times 2=-4$.

So,magnesium sulphate is not balanced.

Option c:

Magnesium has charge $+2$

Two hydroxides have a charge of $2\times -1=-2$.

So,magnesium hydroxide is balanced.

Option d:

Sodium has charge $+1$

Sulphate has charge $-2$.

So,sodium sulphate is not balanced.