Multiple Choice
Which of the following combinations will produce a precipitate when mixed in aqueous solution?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which statement best describes how temperature affects the solubility of most solid ionic compounds in water?
A
Most solid ionic compounds become insoluble at higher temperatures.
B
Temperature has no effect on the solubility of solid ionic compounds.
C
Increasing temperature generally increases the solubility of most solid ionic compounds.
D
Increasing temperature generally decreases the solubility of most solid ionic compounds.
Verified step by step guidance1
Understand that solubility refers to the maximum amount of a substance (solute) that can dissolve in a solvent at a given temperature to form a saturated solution.
Recall that for most solid ionic compounds dissolved in water, solubility is influenced by temperature because dissolution is often an endothermic process (absorbs heat).
Recognize that when temperature increases, the system can absorb more heat, which generally favors the dissolution of solids, leading to increased solubility.
Note that this trend is not universal for all solids, but it applies to most solid ionic compounds where solubility increases with temperature.
Therefore, the best description is that increasing temperature generally increases the solubility of most solid ionic compounds in water.
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