Write out a “for every” statement that relates the amount of methane to the amount of oxygen gas (CH4 + 2O2 = CO2 + 2H2O)

For every one molecule of methane, one molecule of oxygen is required to release one molecule of CO2 and 2 molecule of H2O

Explanation:

As we can in the balanced equation below -

CH4 + 2O2 = CO2 + 2H2O

One molecule of CH4 reacts with two molecule of oxygen to release one molecule of CO2 and 2 molecule of H2O.

Hence, it can be said

For every one molecule of methane, one molecule of oxygen is required to release one molecule of CO2 and 2 molecule of H2O

gravity causes stares to cluster i think so