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Multiple Choice
When a solid is dissolved into a liquid, which of the following best describes the process?
A
The solid forms a separate layer above the liquid.
B
The solid remains unchanged and settles at the bottom of the container.
C
The solid's particles disperse uniformly throughout the liquid, forming a solution.
D
The solid reacts with the liquid to produce a gas.
Verified step by step guidance
1
Understand the concept of dissolution: When a solid dissolves in a liquid, its particles separate and spread out evenly throughout the liquid, creating a homogeneous mixture called a solution.
Recognize that if the solid formed a separate layer or settled at the bottom, it would mean the solid did not dissolve, so these options do not describe the dissolution process.
Know that a chemical reaction producing a gas is a different process and not the typical behavior when a solid simply dissolves in a liquid.
Therefore, the best description of the process is that the solid's particles disperse uniformly throughout the liquid, forming a solution.
This uniform dispersion means the solid is no longer visible as a separate phase, and the mixture appears consistent throughout.