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Chapter 1 – Fundamentals of Chemistry :: Discussion
| 12. | Which one of the following pairs has the same mass? | |
| A. | 1 mole of CO and 1 mole of N2 | |
| B. | 1 mole of CO and 1 mole of CO | |
| C. | 1 mole of O2 and 1 mole of N2 | |
| D. | 1 mole of O2 and 1 mole of CO | |
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