solubility rules

Question 1

Na+

Answer 1

always

Question 2

K+

Answer 2

always

Question 3

NH4+

Answer 3

always

Question 4

NO3

Answer 4

always

Question 5

ClO4

Answer 5

always

Question 6

CH3CO2

Answer 6

always

Question 7

Cl-

Answer 7

usually
not: lead (Pb 2+), mercury (Hg2 2+), silver (Ag +), copper (Cu +)

Question 8

Br-

Answer 8

usually
not: lead (Pb 2+), mercury (Hg2 2+), silver (Ag +), copper (Cu +)

Question 9

I-

Answer 9

usually
not: lead (Pb 2+), mercury (Hg2 2+), silver (Ag +), copper (Cu +)

Question 10

SO4 2-

Answer 10

usually
not: barium (Ba 2+), strontium (Sr 2+), lead (Pb 2+), mercury (Hg2 2+), silver (Ag +)

Question 11

S 2-

Answer 11

usually INsoluble
not: sodium (Na +), potassium (K +), magnesium (Mg 2+), ammonium (NH4 +), calcium (Ca 2+), strontium (Sr 2+), barium (Ba 2+)

Question 12

O 2-

Answer 12

usually INsoluble
not: sodium (Na +), potassium (K +), strontium (Sr 2+), barium (Ba 2+)

Question 13

OH -

Answer 13

usually INsoluble
not: sodium (Na +), potassium (K +), strontium (Sr 2+), barium (Ba 2+)

Question 14

CrO4 2-

Answer 14

usually INsoluble
not: sodium (Na +), potassium (K +), ammonium (NH4 +)

Question 15

PO4 3-

Answer 15

usually INsoluble
not: sodium (Na +), potassium (K +), ammonium (NH4 +)

Question 16

CO3 2-

Answer 16

usually INsoluble
not: sodium (Na +), potassium (K +), ammonium (NH4 +)