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