Mixtures

Question 1

Which is a property of every mixture?

Revolt · Accepted Answer

One substance can be separated from another through physical means.

Question 2

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 3

Which is a characteristic of colloids?

Revolt · Accepted Answer

are made up of at least two substances

Question 4

Which is a property of every heterogeneous mixture?

Revolt · Accepted Answer

The characteristics of the mixture change within a sample.

Question 5

Which would most likely form a homogeneous mixture?

Revolt · Accepted Answer

a pinch of sugar mixed with a cup of water

Question 6

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 7

Eli states that sodium phosphate is a mixture because it is composed of both sodium ions and phosphate ions.Which is the best analysis of Eli’s statement?

Revolt · Accepted Answer

It is incorrect because sodium phosphate is a compound that has a single composition.

Question 8

Which will settle out if allowed to sit on a table?

Revolt · Accepted Answer

a suspension

Question 9

Which substance gets broken down in a homogeneous mixture?

Revolt · Accepted Answer

solute

Question 10

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

Revolt · Accepted Answer

colloid

Mixtures Answers

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