Letter C would be the correct answer
I think the answer would be trenches but I’m sorry if I’m wrong
Multiply .800 moles of O2 by Avagadro's number divided by 1 mole. This will get rid of the moles on the bottom and leave you with molecules. So technically .800 times 6.02x10^23.
Answer:
no
Explanation
heat just flows from hot to cold