Which of the following is correct ?
(1) 28g co contains 12g carbon and 16 g oxygen
(2) one mole of co tract completely with half of o2 to form co2
(3) N2 and co have same molar mass
(4) all of these
Answers
Answered by
0
Answer:
3
Explanation:
i think so answer is 3 I am not sure
Similar questions