CHEM Test 5 (10th) 21-22

Fe oxidation state

• +2, +4

• +2

• +2, +3

Pb oxidation state

• +3, +4

• +2, +4

• +3

Hg oxidation state

• +1, +3

• +2, +4

• +1, +2

Cu oxidation state

• +1, +2

• +3, +4

• +2, +3

Pt

• Metal

• Non Metal

S

• Metal

• Non Metal

C

• Metal

• Non Metal

Ni

• Metal

• Non Metal

Molecules are always electrically neutral

• True

• False

The molecule Na₂O is

• Correct

• Incorrect