For the following write I (ionic) or C (covalent) on the line provided to indicate the type of bond in the compound.

a.

N2O3

b.

CaCO3

c.

Ba3 (PO4) 2

d.

P2O5

e.

C2H4O2

f.

S2Cl2

g.

Fe2 (SO4) 3

h.

PbCl2

i.

MgCl2

j.

Cu2S

k.

CH4

l.

Cl2O7

A. Convalent

B. Ionic

C. Ionic

D. Convalent

E. Ionic

F. Convalent

G. Ionic

H. I think its Ionic but I'm not totally positive.

I. Ionic

J. Ionic

K. Convalent, because hydrogen isn't a metal

L. Convalent

The way to know if the answer is Convalent or Ionic is if its Ionic it will consist of a Metal and a non metal. One element from the right and left side (or more elements) of the stair case on the periodic table except Hydrogen. If it is convalent both or all elements will be on the right side of the staircase [Non metals]