Multiple Choice
Which of the following ionic compounds is not soluble in water?
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6. Chemical Quantities & Aqueous Reactions
Solubility Rules
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Which term describes the process that occurs when elements and compounds dissolved in water leave a solution and form a solid?
A
Precipitation
B
Dissociation
C
Evaporation
D
Hydration
Verified step by step guidance1
Understand the context: The problem asks for the term that describes the process where dissolved elements or compounds in water leave the solution and form a solid.
Recall definitions of the given terms: Dissociation refers to ions separating in solution; evaporation is the process of liquid turning into vapor; hydration involves water molecules surrounding ions or molecules.
Identify the process where dissolved substances come out of solution as a solid. This is known as precipitation, where a solid called a precipitate forms from a solution.
Recognize that precipitation occurs when the concentration of dissolved ions exceeds their solubility, causing them to combine and form an insoluble solid.
Conclude that the correct term describing this process is 'Precipitation'.
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