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Example Questions
Example Question #21 : Solubility
Which of the following ionic compounds is soluble in water?
I.
II.
III.
Possible Answers:
I only
I and II
I, II, and III
II and III
Correct answer:
I and II
Explanation:
Solubility rules determine which ionic compounds are soluble. All nitrates and group I compounds (those containing alkali metals) are soluble. This means that compounds I and II must be soluble; compound I is a nitrate and compound II contains sodium, an alkali metal.
Compound III, calcium fluoride, is not soluble. Most fluoride compounds are soluble, with the exceptions of: .
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