Mixtures

Question 1

Otis watches a cooking show on making mayonnaise. The chef dissolves salt and sugar in vinegar. She mixes in an egg yolk, and then mixes in oil until the ingredients are completely blended together. The chef says that it’s great on sandwiches and that it can be stored without separating.Which best describes the purpose of the egg yolk in the recipe?

Revolt · Accepted Answer

It acts to hold the vinegar and oil together in a colloid.

Question 2

Which is a property of every mixture?

Revolt · Accepted Answer

One substance can be separated from another through physical means.

Question 3

Fog is composed of water droplets in air. Which term describes fog?

Revolt · Accepted Answer

colloid

Question 4

Which material is the least likely to be recognized as a mixture by looking at it under a microscope?

Revolt · Accepted Answer

a homogeneous mixture

Question 5

Which is a property of every heterogeneous mixture?

Revolt · Accepted Answer

The characteristics of the mixture change within a sample.

Question 6

Maria examines a mixture that appears to be the same throughout. However, when she looks at a sample using a magnifying lens, she can see small droplets of liquid surrounded by another liquid.Which conclusion best fits her observations?

Revolt · Accepted Answer

The mixture is a colloid because two different substances can be seen in a small sample.

Question 7

What is the correct classification of a mixture in which both a solid and a liquid are visible?

Revolt · Accepted Answer

a heterogeneous mixture and a suspension

Question 8

elementpure substancemixturesolution

Revolt · Accepted Answer

pure substance

Question 9

Which would most likely form a homogeneous mixture?

Revolt · Accepted Answer

a pinch of sugar mixed with a cup of water

Question 10

Which is a characteristic of colloids?

Revolt · Accepted Answer

are made up of at least two substances

Mixtures Answers

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