General Solubility

Question 1

What elements make a compound always soluble?

Answer 1

Li Na K Rb Cs

Question 2

What polyatomic ions make a compound always soluble?

Answer 2

Ammonium NH₄

Nitrate NO₃

Acetate C₂H₃O₂

Chlorate ClO₃

Question 3

Ions that are usually Insoluble?

Answer 3

S - Sulfur

OH - Hydroxide

CO₃ - Carbonate

CrO₄ - Chromate

PO₄ - Phosphate

Question 4

Nitrates - NO₃^- and

Acetates C₂H₃O₂

are _____

Answer 4

Soluble

Question 5

Most Cholride Cl,

Bromide Br,

and Iodide I,

salts are soluble.

What are the three exceptions that make it insoluble?

Answer 5

SilvMercLead

Ag, Hg, Pb

Question 6

Most sulfate

( SO₄^-2 )

salts are soluble.

What are the exceptions that are insoluble?

Answer 6

SilvCalStront-BariLead

Ag, Ca, Sr, Ba, Pb,

Question 7

Most carbonartes CO₃^-2

Phosphates PO₄^-3

Chromates CrO₄^-2

are insoluble.

What exceptions make them soluble?

Answer 7

LiNaK-RbCs and NH₄

Li, Na, K, Rb, Cs and ammonium

Question 8

Most Sulfide S

and Hydroxide

salts are insoluble.

What exceptions make them soluble?

Answer 8

LiNaK-RbCs

Li, Na, K, Rb, Cs

Ammonium

StrontBari

Sr, Ba