Question

Assign oxidation states to all atoms in each compound. (Enter youranswer using the format +1 and -2.)

(a) C₂H₂O₄

C
H
O

(b) PCl₃

P
Cl

(c) Na₂CuCl₄(Cu only)

Cu

(d) K₂CO₃

K
C
O

(e) HCl

H
Cl

(f) N₂O₄

N
O

(g) Na₂Cr₂O₇

Na
Cr
O

(h) Fe₂O₃

Fe
O

(i) MnO₂

Mn
O

(j) Na₂HPO₄

Na
H
P
O