Chemistry 111 (ch 1-4)

Group 1A, 2A, 3B, and Al

charges = group number

N, 6A, and 7A

charges 3-, 2-, 1- respectively

carbonate

CO3 2-

hydroxide

OH -1

nitrate

NO3 -1

phosphate

PO4 3-

sulfate

SO4 2-

if the anion name ends in "ide"

change the ending to "ic" and add the prefix "hydro"

If the polyatomic ion ends in -ate

change ending to -ic

if it ends in "ite"

change ending to -ous

one

mono

two

di

three

tri

four

tetra

five

penta

six

hexa

Group 1A cations and NH4+

soluble

Nitrates

soluble

Perchlorates (ClO4-)

soluble

Acetates (CH3COO-)

soluble

chlorides, bromides, iodides

soluble except Ag(1+), Hg2(2+), Pb(2+)

sulfates

soluble except Sr(2+), Hg2(2+), Pb(2+), Ba(2+)

carbonates

insoluble except group 1A and ammonium(NH4+)

phosphates

insoluble except group 1A and ammonium(NH4+)

hydroxides

insoluble except with group IA, ammonium(NH4+), Sr(2+), and Ba(2+)