Oxidation State

What is the oxidation number of Mn in MnO₄^- ?

• -2

• +2

• +7

• +8

Tags

NGSS.HS-PS1-2

What is the oxidation number of Cl in FeCl₃?

• -3

• -1

• +1

• +3

What is the oxidation number of Ca in Ca₃N₂?

• -3

• -2

• +2

• +3

What is oxidation number of K in K₃PO₄?

• -2

• -1

• +1

• +5

What is oxidation number of P in K₃PO₄?

• -2

• -1

• +1

• +5

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the oxidation of C in CH₄?

• -4

• -1

• +1

• +4

What is the oxidation number of Cl in ClO₃^- ?

• -1

• +1

• +5

• +6

What is the oxidation number of Cr in Cr₂O₇^2-?

• +6

• +7

• +12

• +14

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is the oxidation of N in NH₄⁺?

• -4

• -3

• +3

• +4

If an atom loses electrons, it becomes _____

• positive

• negative