Question

A closed container is filled with 2 moles of hydrogen gas and 2 moles of oxygen gas. The gases react to form water.

Write a balanced equation for this reaction.

Answer 1

`2H_2+O_2=2H_2O`

Step-by-step explanation:

The chemical formula for hydrogen is H while chemical formula for oxygen is O

Considering that two moles of hydrogen and 2 moles of oxygen react to form water, the equation will be

`2H_2+2O_2=H_2O`

The number of oxygen molecules don't balance on both LHS and RHS hence to balance it, we put it as follows

`2H_2+O_2=2H_2O`

Normally, two moles of hydrogen require only one mole of oxygen to form two moles of water.