Multiple Choice
Calcium carbonate is most likely to dissolve in water with which of the following characteristics?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Based on general solubility rules, which of the following compounds is most likely to be insoluble in water?
A
AgCl
B
K_2SO_4
C
NaNO_3
D
NH_4Br
Verified step by step guidance1
Recall the general solubility rules for ionic compounds in water, which help predict whether a compound will dissolve or remain insoluble.
Identify that compounds containing alkali metal ions (like K\textsuperscript{+}) and the ammonium ion (NH\textsubscript{4}\textsuperscript{+}) are generally soluble in water.
Recognize that most nitrate (NO\textsubscript{3}\textsuperscript{−}) salts are soluble without exception.
Note that sulfate salts (SO\textsubscript{4}\textsuperscript{2−}) are usually soluble, with some exceptions like barium sulfate or lead sulfate, but potassium sulfate (K\textsubscript{2}SO\textsubscript{4}) is soluble.
Understand that silver chloride (AgCl) is a classic example of an insoluble salt because silver halides (except AgF) are generally insoluble in water.
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