Multiple Choice
Which of the following statements about matter is false?
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1. Intro to General Chemistry
Classification of Matter
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Which type of mixture best describes milk?
A
Homogeneous mixture
B
Colloid
C
Suspension
D
Heterogeneous mixture
Verified step by step guidance1
Understand the definitions of the types of mixtures: A homogeneous mixture has uniform composition throughout; a heterogeneous mixture has visibly different parts; a suspension contains particles that settle out over time; a colloid has particles dispersed throughout but they do not settle and are intermediate in size between solutions and suspensions.
Consider the physical characteristics of milk: it appears uniform to the naked eye but contains tiny fat droplets dispersed throughout the liquid.
Recognize that milk's fat droplets do not settle out quickly like in a suspension, and the particles are larger than those in a true solution, so it is not homogeneous.
Identify that milk fits the description of a colloid because it has dispersed particles that remain suspended and do not settle, giving it a stable, uniform appearance without being a true solution.
Conclude that milk is best classified as a colloid based on its particle size and behavior in the mixture.
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