Mixtures and Solutions Answers

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Which is a characteristic of a solution?

A
Its particles scatter light.
B
Its particles are evenly distributed.
C
Its particles settle out.
D
It has large suspended particles.
4

Which best describes the Tyndall effect?

A
the scattering of light by solutes in a mixture
B
the scattering of light by solvent in a solution
C
the scattering of light by solutes in a solution
D
the scattering of light by particles in a mixture
5

Which is a characteristic of a homogeneous mixture that is a liquid?

A
It exhibits the Tyndall effect.
B
Brownian motion is not visible in it.
C
It cannot be separated using filtration.
D
It has at least two phases.
7

Which solution is a homogeneous mixture?

A
sand and water
B
salt and water
C
salad dressing
D
soil
8

Which statement best describes the formation of a solution?

A
A large amount of solute is dissolved in a smaller amount of solvent.
B
A small amount of solute is dissolved in a larger amount of solvent.
C
A small amount of solvent is dissolved in a larger amount of solute.
D
A large amount of solvent is dissolved in a larger amount of solute.
9

What are homogeneous mixtures of metals commonly called?

A
alloys
B
colloids
C
compounds
D
suspensions
11

Mixture A was made by mixing different components together, but it appears to have one phase. Which term best categorizes mixture A?

A
colloid
B
solution
C
emulsion
D
suspension
12

Five milliliters (mL) of alcohol is poured into a beaker that contains 65 mL of 2% saltwater. Which are the solutes in the new solution?

A
salt only
B
alcohol only
C
salt and water
D
alcohol and salt
13

Which substance is an example of a colloid?

A
milk
B
tomato juice
C
sand and water
D
sugar and water
14

Which best explains why blood is considered to be a suspension?

A
It has nutrients that cannot be dissolved.
B
It contains particles that can settle out.
C
It has nutrients that are dissolved in its liquid portion.
D
It contains particles that mix on a molecular level.
15

In which situation can a mixture always be called a solution?

A
when one of its components is a gas
B
when there is no solvent in the mixture
C
when its components are made up of different types of particles
D
when the mixture is homogeneous
16

Milk is a heterogeneous mixture that contains different types of particles in different phases. Due to the sizes of the particles in milk and the way they are dispersed, the particles do not easily settle out. They also cannot easily be filtered out.Therefore, milk is best described as a

A
solution
B
suspension
C
compound
D
colloid
17

Which solution is a homogeneous mixture?

A
sand and water
B
salt and water
C
salad dressing
D
soil
18

A solid is stirred into a liquid and dissolves. Which type of mixture forms?

A
a colloid
B
an emulsion
C
a solution
D
a suspension
19

The water in a 150-mL flask is poured into a beaker that contains 600 mL of ethyl alcohol. Which substance is the solvent in this mixture?

A
water because it is a very polar compound
B
ethyl alcohol because it has a lower density than water
C
ethyl alcohol because it has a much larger volume than water
D
water because it has dissolved in ethyl alcohol
20

Which refers to a mixture that contains more than one phase in which the characteristics of the particles vary throughout the mixture?

A
compound
B
element
C
heterogeneous
D
homogeneous

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