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Flashcards in Oxidation Numbers Deck (10):
1

For elements the oxidation number is always…

Zero

2

What is the oxidation number for oxygen?

-2
E.g. H2O, CO2

3

What is the oxidation number for hydrogen?

+1
E.g. NH3, H2S

4

What is the oxidation number for Fluorine?

-1
E.g. HF

5

What is the oxidation number for Na+/K+?

+1
E.g. NaCl, K2O

6

What is the oxidation number for Mg2+/Ca2+?

+2
E.g. MgCl2, Ca0

7

What is the oxidation number for Cl-/Br-/I-?

-1
E.g. HCl, KBr, CaI2

8

What is the oxidation number for hydrogen in metal hydrides?

-1
E.g. NaH, CaH2

9

What is the oxidation number for oxygen in peroxides?

-1
E.g. H2O2

10

What is the oxidation number for oxygen when bonded to fluorine?

+2
E.g. F2O