Exam 4: Polyatomic Ion Charges Flashcards
1
Q
Acetate
C2H3O2
A
-
also generally soluble
2
Q
carbonate
CO3
A
2-
generally insoluble unless paired with Li+, Na+, K+, NH4^+
3
Q
hydrogrogen carbonate (or bicarbonate)
HCO3
A
-
4
Q
hydroxide
OH
A
-
generally insoluble unless paired with Li+, Na+, K+, NH(2-)
or Ca^2+, Sr^2+, Ba^2+
5
Q
nitrite
NO2
A
-
6
Q
nitrate
NO3
A
-
always soluble
7
Q
dichromate
Cr2O7
A
2-
8
Q
chromate
CrO4
A
2-
9
Q
phosphate
PO4
A
3-
generally insoluble unless paired with Li+, Na+, K+, NH4+
10
Q
Hydrogen Phosphate
HPO4
A
2-
11
Q
dihydrogen phosphate
H2PO4
A
-
12
Q
ammonium
NH4
A
+
soluble always
13
Q
hypochlorite
ClO
A
-
14
Q
chlorite
ClO2
A
-
15
Q
Chlorate
ClO3
A
-
always soluble
16
Q
Perchlorate
ClO4
A
-
always soluble
17
Q
permangante
MnO4
A
-
18
Q
sulfite
SO3
A
2-
19
Q
hydrogen sulfite (bisulfite)
HSO3
A
-
20
Q
sulfate
SO4
A
2-
soluble except when paired with Sr(2+), Br(2+), Pb(2+), Ag(+), or Ca(+)
21
Q
dfgh
hydrogen sulfate (bisulfite)
HSO4
A
-
22
Q
cyanide
CN
A
-
23
Q
peroxide
O2
A
2-
