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If CaCl2 is dissolved in water, what will happen?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which of the following barium salts is insoluble in water?
A
Barium nitrate (Ba(NO_3)_2)
B
Barium sulfate (BaSO_4)
C
Barium chloride (BaCl_2)
D
Barium acetate (Ba(C_2H_3O_2)_2)
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Recall the general solubility rules for ionic compounds in water, which help predict whether a salt will dissolve or remain solid.
Note that most nitrate (NO\_3\^-) salts are soluble in water without exception, so barium nitrate (Ba(NO\_3\)_2) is soluble.
Recognize that most chloride (Cl\^-) salts are soluble, except those of silver, lead, and mercury, so barium chloride (BaCl\_2) is soluble.
Understand that most acetate (C\_2H\_3O\_2\^-) salts are soluble, so barium acetate (Ba(C\_2H\_3O\_2)\_2) is soluble.
Recall that sulfate (SO\_4\^2\-) salts are generally soluble, but barium sulfate (BaSO\_4) is a well-known exception and is insoluble in water.
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