Multiple Choice
Sodium chloride (NaCl) dissolves in water because water molecules _____.
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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According to common solubility rules, which of the following compounds is generally insoluble in water?
A
NaNO_3
B
K_2SO_4
C
NH_4Br
D
AgCl
Verified step by step guidance1
Recall the common 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 (such as Na⁺ and K⁺) and the ammonium ion (NH₄⁺) are generally soluble in water.
Recognize that nitrates (NO₃⁻), sulfates (SO₄²⁻), and bromides (Br⁻) are typically soluble, except for some exceptions not involving the given compounds.
Note that silver chloride (AgCl) is a classic example of an insoluble salt because silver halides (AgX, where X = Cl, Br, I) have low solubility in water.
Conclude that among the listed compounds, AgCl is generally insoluble in water according to the solubility rules.
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