how many molecules of carbon dioxide would be formed from 2.5 x 10^24 molecules of O2

Answer 1

For every molecule of carbon dioxide, there is one carbon atom and two oxygen atoms

For every molecule of O2, there are two oxygen atoms.

C + O2 ---> CO2

so for 1 mole of O2 you get 1 mole of CO2

2.5 x 10^24 molecules of O2 would yield 2.5 x 10^24 molecules of carbon dioxide