Find solutions to your problems with the expert advice available on IDNLearn.com. Ask your questions and receive comprehensive, trustworthy responses from our dedicated team of experts.

Assign oxidation numbers to each atom in the following compounds or ions: a. HFb. C/4c. H₂0d. Pl3e. CS₂f. Na₂O₂g.H₂CO3h. NO 2i. SO2-4Deforming the oxidation numbers for iron oxide Fe-On (Recall that oxidation numbers are integers)

Sagot :

Some oxidation number rules

1) The oxidation number of a free element is always 0. The atoms in He and N2, for example, have oxidation numbers of 0.

2) The usual oxidation number of hydrogen is +1.

3 The oxidation number of oxygen in compounds is usually -2. Exceptions include OF2 because F is more electronegative than O, and BaO2, due to the structure of the peroxide ion, which is [O-O]2-.

a) HF, H = +1 F = -1

b)

c) H₂0, H = +1 O = -2

d) Pl3, P = +3 I = -1

e) CS₂, C = +4 S = -2

f) Na₂O₂, Na = +1 O = -1

g) H₂CO3 H = +1 C =+4 O =-2

h) NO2 N = +2 O = -2

i) SO2-4 S =+6 O = -2