Multiple Choice
Which one of the following substances is more likely to dissolve in benzene (C6H6)?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which of the following provides the best information to predict whether mixing two ions in solution will result in the formation of a precipitate?
A
The color of the solutions before mixing
B
The atomic numbers of the elements involved
C
The solubility rules for common ionic compounds in water
D
The boiling points of the individual ions
Verified step by step guidance1
Understand that predicting whether a precipitate forms when mixing two ions in solution depends on the solubility of the possible products formed.
Recall that solubility rules are empirical guidelines that tell us which ionic compounds are generally soluble or insoluble in water.
Recognize that the color of the solutions, atomic numbers, or boiling points of ions do not provide direct information about solubility or precipitation.
Use the solubility rules to determine if the combination of the two ions will form an insoluble compound, which will precipitate out of solution.
Conclude that the best information to predict precipitation is the solubility rules for common ionic compounds in water.
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