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WorksheetsSubtopic 5.2
Total questions: 40
Worksheet time: 40mins
Water is a universal solvent because it...
can be found anywhere
freezes when it gets cold
floats when frozen
dissolves most substances
The concentration of a mixture can be increased in which of the following ways..
Heating the mixture
Adding more water “solvent”
Adding more powder “solute”
Stirring the mixture
What is a solvent?
The substance that does the dissolving in a solution.
The substance that is being dissolved in a solution.
The mixing of different substances.
The process in which neutral molecules lose or gain electrons
What is a substance that is dissolved in another substance?
solution
solute
solvent
solvent
In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?
stir the powder in the liquid
freeze the mixture
add more powder to the liquid
store the mixture in a dark place
A solution that is considered dilute would be....
Dark in color
Have a strong scent
Have a large amount of solute
Have a small amount of solute
what a solute dissolves in
solvent
solute
mixture
When a certain amount of solvent cannot hold any more solute it is called a ________ solution.
Diluted
Saturated
watery
weak
When Koolaid mix is light colored and tastes watery it is a _______ solution.
saturated
diluted
super saturated
When a Koolaid mix in water is dark in color and very sweet it is a __________ solution.
concentrated
diluted
Lemonade - Water, lemon juice, and sugar
Identify the solute
water
lemon juice
sugar and lemon juice
How could you change a saturated solution to an unsaturated solution?
Add solute
Add solvent
Identify a method to decrease the dissolving rate of a solution:
decrease the temperature
stir the solution
increase the temperature
Which would NOT increase the rate at which a sugar cube dissolves?
Reducing the amount of solvent
Crushing the sugar cube
Stirring the solution
Heating the solvent
A solution that is able to dissolve additional solute is best described as
supersaturated.
concentrated.
saturated
unsaturated.
Three 10 g samples of sugar are represented below.
Sample A dissolves in water more slowly than sample B.
Sample B dissolves more slowly than sample C.
Which of the following best explains why sample A dissolves more slowly than the other two?
It has the most volume.
It has the smallest surface area.
It has the largest number of sugar molecules.
It has the fewest bonds between sugar molecules.
Milk is a
solution
suspension
colloid
A saturated solution is______
No more solute can be dissolved
More solute can be dissolved
The solvent and solution
A colloid is a mixture that contains undissolved particles.
True
False
Sugar water let's light pass through, and is a homogeneous mixture
solution
suspension
colloid
Sand floating in water, but most of the sand is settled at the bottom this an example of which type of mixture?
A solution
A colloid
A suspension
A compound
Particles are spread throughout a fluid but are too large to stay mixed w/o being stirred or shaken.
suspension
colloid
solution
Which of the following has the largest particles?
Solution
Suspension
Colloid
Which of the following appear to be clear (are not cloudy)?
Solution
Suspension
Colloid
Which of the following would leave particles on filter paper?
Solution
Suspension
Colloid
A type of mixture where the particles are larger than those in a solution but not heavy enough to settle out.
Colloid
Suspension
Compound
A measure of how much solute can be dissolved into a liter of solvent
Solubility
Dilution
Concentration
Pure Solution
A snow globe would be an example of a
suspension
colloid
solution
Tea and air are examples of ________________.
suspensions
colloids
solutions
Higher turbidity = ?
(select all that is correct)
More total suspended solids
Less/no total suspended solids
Murky/cloudy
Clear/colourless
The following data is given in an experiment. Which of the following would you expect copper(II) sulfate crystals to take a shorter time to dissolve if all of them are stirred at the same rate?
A
B
C
D
The rate of dissolving of a solute refers to
how much a solute dissolves in a fixed volume of solvent
how much a solute dissolves in any volume of solvent
how fast a solute dissolves in a fixed volume of solvent
how fast a solute dissolves in any volume of solvent
Which of the following word equations is correct?
Solute + Solution = Solvent
Solute + Solvent = Solution
Solute + Solute = Solution
Solvent + Solution = Solute
A teaspoonful of sugar is added to a cup of cold water and stirred until all the sugar crystals have dissolved. More sugar is then added until the sugar crystals remained at the bottom of the cup. The resulting sugar solution is said to be ___________________.
insoluble
saturated
soluble
unsaturated
Which of these is a colloid?
paint
air
salt water
gasoline
Which will dissolve the slowest
powdered sugar in hot water
Powdered sugar in cold water
sugar cubes in hot water
sugar cubes in cold water
Water is known as the universal __________
solute
solution
solvent
bonder
Organic solvents which are carbon-based can be used to dissolve solutes that are insoluble in (a)
Water can dissolve ALL kind of solute.
True
False
Alcohol, kerosene, acetone, turpentine and ether are the examples of (a) .
