level: year 1
Questions and Answers List
level questions: year 1
| Question | Answer |
|---|---|
| oxidation number for oxygen | -2 |
| hydrogen ox n | +1 |
| Fluorine ox n | -1 |
| sodium and potassium ox n | +1 |
| magnesium and calcium | +2 |
| chlorine,bromine and iodine | -1 |
| H in metal hydrides | -1 |
| oxygen in peroxides h202 | -1 |
| f20/ oxygen bonded to fluorine is | +2 |
| OILRIG | Oxidation Is Loss of electrons Reduction Is Gain of electrons |