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Multiple Choice
Which of the following best describes a solution in chemistry?
A
A homogeneous mixture in which a solute is uniformly dispersed in a solvent
B
A pure substance composed of only one type of molecule
C
A chemical compound formed only by covalent bonds between two elements
D
A heterogeneous mixture that contains visible, separate phases
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Verified step by step guidance
1
Understand the definition of a solution in chemistry: it is a type of mixture where one substance (the solute) is dissolved uniformly throughout another substance (the solvent).
Recall that a solution is homogeneous, meaning its composition is consistent throughout and you cannot distinguish different parts by sight.
Recognize that a pure substance composed of only one type of molecule is not a mixture, so it cannot be a solution.
Note that a chemical compound formed only by covalent bonds is a specific type of molecule, not a mixture, so it does not describe a solution.
Identify that a heterogeneous mixture contains visibly different phases or parts, which contrasts with the uniformity of a solution.