Question

Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical

Answer 1

Answer:

$2H_2O\rightarrow 2H_2+O_2$

Explanation:

Hello there!

In this case, for the reaction by which water is decomposed to molecular hydrogen and oxygen:

$H_2O\rightarrow H_2+O_2$

It is necessary to perform the inspection balance process since there is a dissimilar number of atoms of oxygen on both sides; therefore, by putting a 2 on water we balance oxygen:

$2H_2O\rightarrow H_2+O_2$

But now, there are four hydrogens on the left; therefore, we put a 2 on hydrogen to finally balance it:

$2H_2O\rightarrow 2H_2+O_2$

And obviously, the coefficient in oxygen is an unwritten 1.

Best regards!