Worksheets8th - Quiz (6.1 & 6.2)
Total questions: 20
Worksheet time: 10mins
A mixture is a combination of two or more substances in any proportion that do not combine chemically.
True
False
Which of the following is an example of a heterogenous mixture?
(Select all that apply!)
Jello
Italian Salad dressing
Salt water
Sand and water mixture
What distinguishes a heterogeneous mixture from a homogeneous mixture?
Homogeneous mixtures have large particles.
Homogeneous mixtures have varying compositions.
Homogeneous mixtures have the same composition throughout.
Heterogeneous mixtures have the same composition throughout.
What type of mixture is characterized by medium-sized particles that are large enough to see but not large enough to settle or be filtered out of the mixture?
Suspension
Heterogeneous
Solution
Colloid
What distinguishes a suspension from a colloid?
Suspensions have medium-sized particles.
Suspensions have tiny particles.
Colloids have medium-sized particles that do not settle.
Colloids have a heterogeneous composition.
Mixtures can be separated using all of the following methods except...
Boiling
Dissolving
Filtering
A chemical reaction
Which of the following is an example of a suspension?
Italian Salad dressing
Salt water
Jello
Air
Why might it be challenging to separate the components of a solution compared to a suspension?
Solutions have larger particles that settle quickly and can be filtered easily.
Suspensions have larger particles that settle quickly and can be filtered easily.
Suspensions have smaller particles that are difficult to filter.
Solutions and suspensions are both easy to separate.
A homogeneous mixture with evenly spread dissolved particles is considered a suspension.
True
False
Which of the following is the solute in a solution of salt water?
the water
the sugar
the salt and the water
the salt
Which of the following is the solvent in a solution of salt water?
the water
the sugar
the salt and the water
the salt
Sugar's ability to dissolve in water is an example of:
solubility
concentration
saturation
insolubility
How does the concentration of a solution change when more solute is added to it?
Concentration decreases
Concentration remains the same
Concentration increases
Concentration becomes zero
Lemonade that has a low concentration of sugar is considered _____.
dilute
saturated
concentrated
soluble
If you have a solution with 200 g of water (solution) and 15 g of sugar (solute), what is the concentration percentage of sugar in the solution?
75%
7.5%
13%
1,000%
If you have a solution with 10 g of water (solution) and 0.5 g of salt (solute), what is the concentration percentage of salt in the solution?
5%
10%
0.05%
20%
How much salt was added if a 500 g saline solution contains 50% salt?
(Hint: Use the concentration percentage equation in reverse)
250 g of salt
25 g of salt
0.1 g of salt
1,000 g of salt
A chemist is tasked with creating a very saturated solution of a particular solute. Which of the following methods would be most appropriate for achieving this goal?
Increasing the volume of the solvent
Decreasing the temperature of the solution
Adding more solute to the solvent
Filtering the solution to remove impurities
Which solution would be most suitable for a task requiring a high level of solute?
Solution A
Solution B
Solution C
Solution D
If you want a solution with a concentration higher than 7%, which solution(s) would you choose?
(Select all that apply)
Solution A
Solution B
Solution C
Solution D
