Look at the solution of tea and water. What do you think the terms diluted or concentrated could mean?

Diluted means more water, concentrated means less water

Diluted means less water, concentrated means more water

Diluted means more tea, concentrated means less tea

Diluted means less tea, concentrated means more tea

Which of the following actions increases the concentration of an aqueous solution?

increasing the amount of the solute (tea)

decreasing the amount of the solute (tea)

increasing the amount of the solvent (water)

increasing the solute (tea) and solvent (water) in equal amounts

What is the rate of dissolution?

how quickly a substance dissolves

How many particles are in a substance

Rank the glasses from most concentrated to least concentrated.

Glass D, Glass B, Glass C, Glass A

Glass D, Glass B, Glass A, Glass C

Glass A, Glass B, Glass C, Glass D

Glass B, Glass D, Glass A, Glass C

Ernesto and Amanda fill two cups with water. They use hot water in one cup and cold water in the other cup. Next, they will stir a spoon of salt into each cup. In which cup will the salt dissolve more slowly?

The salt dissolves more slowly in the cold water

The salt will not dissolve in either cup

The salt dissolves more slowly in the hot water

The salt dissolves at the same speed in both cups

What does it mean to dilute a solution?

lower the concentration of solute per solvent

increase the concentration of solute per solvent

What is the concentration of a solution?

The measure of the amount of solute in a solution

The measure of the amount of solvent in a solution

to break a substance down in a solvent

What does soluble mean?

to break up a solute in a solvent

What does insoluble mean?

Unable to dissolve in a solvent

The main part, the liquid, usually water

Unit 3 Test Corrections

Quiz

•

Science, Chemistry

•

6th - 8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS1-2, MS-PS1-4

Standards-aligned

Sofia Miranda

Used 18+ times

FREE Resource

30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

The substance in which a solute is dissolved

sands

solvent

alloy

negative particles

2.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

The substance being dissolved in a solution.

sands

solute

solvent

alloy

3.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Solutions are composed of __________ .

salts and solutes

solvents and salts

solutes and alloys

solutes and solvents

4.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

When water is added to a solution it is called a ______________

dilution

concentration

heterogeneous solution

dissociation

5.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

You can make a solution more concentrated by adding more __________.

solute

solvent

water

solution

6.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

In a sample of salt water, NaCl (salt) would be considered the ______.

Solution

Solute

Solvent

Solvation

7.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

If we are making Kool-aid with sugar, Kool-aid powder, and water, which part is the solvent?

water

powder

sugar

powder and sugar

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Unit 3 Test Corrections

30 questions

The substance in which a solute is dissolved

The substance being dissolved in a solution.

Solutions are composed of __________ .

When water is added to a solution it is called a ______________

You can make a solution more concentrated by adding more __________.

In a sample of salt water, NaCl (salt) would be considered the ______.

If we are making Kool-aid with sugar, Kool-aid powder, and water, which part is the solvent?

When one of the parts of the solution is water we call it _________.

Aria is making lemonade. She adds sugar to the water. The sugar is a

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