posted by Tessy .
if 50cm3 of co2 were put in 40cm3 of Oz. Determine the gas that would be in excess and calculate the volume of the gas that would be used
Indicate your specific subject in the "School Subject" box, so those with expertise in the area will respond to the question.
Also, it would help if you proofread your questions before you posted them.
"excess" of what?