which one of the following pair has the same mass:
1 mole of CO and 1 mole of CO2 | |
1 mole of CO and 1 mole of N2 | |
1 mole of O2 and 1 mole of CO2 | |
1 mole of O2 and 1 mole of N2 |
1 mole of CO and 1 mole of CO2 | |
1 mole of CO and 1 mole of N2 | |
1 mole of O2 and 1 mole of CO2 | |
1 mole of O2 and 1 mole of N2 |