hydrogen and oxygene react to form water l. How many molecules of O2 are required to produce 0.6 of H20

It is required 0.3 molecules of O2 to produce 0.6 molecules of H2O

Explanation:

The water's formation reaction is: 2H2 + O2 - -> 2H2O

This reaction shows the molecular O2:H2O ratio: 1:2.

Then, if we want to know how many molecules of O2 are required to produce 0.6 of H20 , it is necessary calculate as it showed next:

0.6 molecules H2O * (1 molecula O2 / 2 molecules H2O) = 0.3 molecule O2