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Worksheets7.6DE CCA Review
Total questions: 84
Worksheet time: 4hrs 54mins
What is the term used to describe the substance that is dissolved in a solution?
Solvent
Solute
Concentration
Dilution
Jackson is preparing a saltwater solution for his science experiment. Which of the following describes the concentration of the solution?
The amount of solute in a given amount of solvent
The temperature of the solution
The color of the solution
The volume of the solvent
What happens to the concentration of a solution when more solvent (water) is added?
It increases
It decreases
It remains the same
It doubles
Which factor does NOT affect the rate of dissolution of a solid solute in an aqueous solution?
Temperature
Surface area
Agitation
Color of the solute
If you increase the temperature of a solution, what generally happens to the rate of dissolution of a solid solute?
It decreases
It increases
It remains the same
It doubles
How does increasing the surface area of a solid solute affect its rate of dissolution?
It increases the rate
It decreases the rate
What is the effect of stirring (agitation) on the rate of dissolution of a solid solute in an aqueous solution?
It decreases the rate
It increases the rate
Which of the following is an example of a solvent in an aqueous solution?
Sugar
Water
Salt
Sand
What is the process of reducing the concentration of a solute in a solution called?
Saturation
Dilution
Evaporation
Precipitation
Which of the following best describes an aqueous solution?
A solution where water is the solute
A solution where water is the solvent
A solution with no water
A solution with only solid components
If a solid solute is broken into smaller pieces, how does this affect its dissolution rate?
It decreases the rate
It increases the rate
Which of the following is NOT a method to increase the rate of dissolution of a solid solute?
Increasing temperature
Decreasing surface area
Stirring the solution
Increasing surface area
How does temperature generally affect the solubility of a solid solute in water?
Solubility decreases with increasing temperature
Solubility increases with increasing temperature
Which of the following actions would decrease the concentration of a solution?
Adding more solute
Adding more solvent
In Michael's science experiment with salt water, NaCl (salt) would be considered the ______.
Solution
Solute
Solvent
Solvation
You can make a solution more concentrated by adding more __________.
solution
Avery is conducting a science experiment. When water is added to a solution it is called a ______________
dilution
concentration
heterogeneous solution
dissociation
Aria is making lemonade. She adds sugar to the water. The sugar is a
solute
solution
science
solvent
solute
In Michael's science experiment with salt water, NaCl (salt) would be considered the ______.
Solution
Solute
Solvent
Solvation
You can make a solution more concentrated by adding more __________.
solution
Avery is conducting a science experiment. When water is added to a solution it is called a ______________
dilution
concentration
heterogeneous solution
dissociation
Aria is making lemonade. She adds sugar to the water. The sugar is a
solute
solution
science
solvent
solute
solute
solvent
solvent
solute
solvent
solute
The smaller the particle size the faster the rate of dissolution (rate of dissolving).
True
False
True or False
The rate of dissolving of a solute in a solvent is faster when the solute and solvent are stirred.
True
False
Jackson is making dinner and is trying to dissolve salt into a pot of water. The salt is dissolving slowly. What should Jackson do to speed up the rate of dissolving?
He should put larger salt particles in the water.
He should heat the water to a higher temperature.
He should completely stop stirring the pot of water.
He should slow down the speed he is stirring the pot.
What combination would dissolve a solid solute the fastest?
high temperature, no stirring
no heat, no stirring
sugar cube, no heat
high temperature, stirring
The water is called the
solvent
solute
The sugar cubes are called the
solute
solvent
A solution with high amount of solute
concentrated
saturated
unsaturated
diluted
What kind of mixture is shown in the picture?
Homogeneous
Heterogeneous
What kind of mixture is shown in the picture?
Homogeneous
Heterogeneous
What kind of mixture is shown in the picture?
Homogeneous
Heterogeneous
How does temperature affect rate of dissolution?
high (hot) temperature dissolves slowly
high (hot) temperature dissolves faster
low (cold) temperature dissolves faster
How does agitation affect rate of dissolution?
It does not affect it
agitation increases the rate of dissolution (dissolves faster)
agitation decreases the rate of dissolution (dissolves slower)
How does surface area affect rate of dissolution?
It does NOT affect rate of dissolution
higher surface area (more little pieces) dissolves faster
lower surface area (more big pieces) dissolves faster
What is the best definition of rate of dissolution?
the measure of hotness or coldness
stirring
the area of the surface of the solute
the speed at which a solute dissolves in a solvent to form a solution
What happens to the concentration of a solution when more solvent (water) is added?
It increases
It decreases
It remains the same
It doubles
Which factor does NOT affect the rate of dissolution of a solid solute in an aqueous solution?
Temperature
Surface area
Agitation
Color of the solute
If you increase the temperature of a solution, what generally happens to the rate of dissolution of a solid solute?
It decreases
It increases
It remains the same
It doubles
How does increasing the surface area of a solid solute affect its rate of dissolution?
It increases the rate
It decreases the rate
Which of the following best describes an aqueous solution?
A solution where water is the solute
A solution where water is the solvent
A solution with no water
A solution with only solid components
A lot of solute compared to the amount of solvent.
A little solute compared to the amount of solvent.
Adding more solute to a solution will make it more....
Adding more water to an aqueous solution will make it more...
A lot of solute compared to the amount of solvent.
A little solute compared to the amount of solvent.
Adding more solute to a solution will make it more....
Adding more water to an aqueous solution will make it more...
A lot of solute compared to the amount of solvent.
A little solute compared to the amount of solvent.
Adding more solute to a solution will make it more....
Adding more water to an aqueous solution will make it more...
Observe the four graduated cylinders containing a solution. Which solution is the most dilute?
Some water is added to an empty glass. A sugar cube is then dropped in and dissolved. The water is the (a) and the sugar is the (b) .
Some water is added to an empty glass. A sugar cube is then dropped in and dissolved. The water is the (a) and the sugar is the (b) .
Give an example of a homogeneous mixture.
Oil and water
Sand and water
Salty water
Iron filings and sulfur
Give an example of a homogeneous mixture.
Oil and water
Sand and water
Salty water
Iron filings and sulfur
This is an example of a
Solution
Mixture
Concentration is
the amount of solute in the solvent
the amount of solvent in the solute
density
particle size
In order to dilute a solution, you need to
add more of the solid
add more water
find the mass
find the volume
How fast a substance dissolves in a liquid.
Rate of Dissolution
Surface Area
Aqueous Solution
Solubility
The amount of area covered by the surface (outside) of an object.
Rate of Dissolution
Surface Area
Concentration
Agitiation
Joe set up an experiment to determine if the temperature of the solvent has an affect on the rate of dissolution. Identify the trial that will dissolve the quickest.
Define Concentration
It is the ratio of the amount of a "solute" compared to the amount of a "solvent" in a solution.
It is the ratio of the amount of a "solvent" compared to the amount of a "solution" in a "solute"
It is the ratio of the amount of a base substance compared to an acid substance in a solution.
It is the ratio of the number of "moles" in a solution compared to the "molarity".
What does it mean when a solution is dilute?
low or weak concentrated solution
high or strong concentrated solution
solution that will react with dark metals
solution that will react with light metals
What is the main difference between a solution and a mixture?
Solutions can only be liquids, while mixtures can be in any state of matter
Solutions are always clear, while mixtures are cloudy
Solutions are homogeneous, while mixtures can be heterogeneous
Mixtures can be separated by physical means, while solutions cannot
