Multiple Choice
Which term describes the substance that is being dissolved in a solution?
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6. Chemical Quantities & Aqueous Reactions
Solutions
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Which of the following occurs during the dissolving process when a solid ionic compound is added to water?
A
The water molecules lose electrons to the solid.
B
The solid remains unchanged and does not interact with water.
C
The ions in the solid are separated and surrounded by water molecules.
D
The solid forms covalent bonds with water molecules.
Verified step by step guidance1
Understand that dissolving an ionic solid in water involves interactions between the ions in the solid and the water molecules.
Recall that water is a polar molecule, meaning it has partial positive and negative charges that can interact with charged ions.
Recognize that during dissolution, the ionic solid's lattice breaks apart into individual ions, a process called dissociation.
Know that these separated ions become surrounded by water molecules in a process called hydration or solvation, where water stabilizes the ions in solution.
Conclude that the correct description of the dissolving process is that the ions in the solid are separated and surrounded by water molecules.
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