Match the items.
The task is to match the lettered items with the correct numbered items. Appearing below is a list of lettered items. Following that is a list of numbered items. Select the letter that best matches the numbered item with the lettered alternatives.
| a. Ca2+ | |
| b. Cu2+ | |
| c. Cu1+ | |
| d. Al3+ | |
| e. N3- | |
| f. Co3+ | |
| g. Co2+ | |
| h. CO32- | |
| i. O2- | |
| j. I– |
1. calcium
2. aluminum
3. copper I
4. copper II
5. cobalt II
6. cobalt III
7. oxygen
8. nitrogen
9. carbonate
10. iodine
(Answers: A, D, C, B, G, F, I, E, H, J )