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2.1.3/2.1.4/2.1.5 Amount of substance, acids and redox Typeit
Target Level
C
Running Total
0
0%
Attempt
1 of 3
Type the oxidation state of the specified element into the space provided for each of the compounds or ions below. Remember to include a '+' or '-' before the number, as appropriate. Fill all the spaces before clicking ‘Check Answers!’
1. sodium in NaCl -
2. oxygen in Al2O3 -
3. fluorine in MgF2 -
4. aluminium in AlBr3 -
5. hydrogen in HF -
6. hydrogen in NH3 -
7. oxygen in OF2 -
8. sulfur in SO3 -
9. phosphorus in PO43− -
10. chlorine in ClF3 -
11. oxygen in H2O2 -
12. carbon in CH4 -
13. nitrogen in Li3N -
14. hydrogen in KH -