Assigning Oxidation Numbers

Oxidation number of O in its stable elemental form, O₂:

• 0

• -1

• -2

• +2

Oxidation number of O in the compound H₂O₂:

• 0

• -1

• -2

• +2

Oxidation number of O in the compound H₂O:

• 0

• -1

• -2

• +2

Oxidation number of O in the ion H₃O⁺:

• 0

• -1

• -2

• +2

Tags

NGSS.HS-PS1-2

Oxidation number of Fe in its elemental form:

• 0

• -2

• +2

• +3

Oxidation number of Fe in FeO:

• 0

• -2

• +2

• +3

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Oxidation number of Fe in Fe₂O₃:

• 0

• -2

• +2

• +3

Tags

NGSS.HS-PS1-1

Oxidation number of Fe in Fe²⁺ ion:

• 0

• -2

• +2

• +3

Tags

NGSS.HS-PS1-2

Oxidation number of S in S₈:

• 0

• -2

• +4

• +6

Oxidation number of S in H₂S:

• 0

• -2

• +4

• +6

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2