WorksheetsG5 How Things Dissolve Quiz 2
Total questions: 10
Worksheet time: 6mins
A transparent liquid with salt or alum or another substance dissolved in water is called a ....
saline solution
water solution
math solution
ice water
If you dissolve 30g of salt in 150mL (150g) of water, the weight of the saline solution will be ....
30 grams
150 grams
180 grams
between 30 and 150 grams
You can recover salt that has been dissolved in water if you....
add more water
remove water by evaporating the solution
decrease the temperature of the solution
increase the temperature of the solution
Choose 2 things to do to make this filtering better.
Use a stirring rod.
Use a bigger beaker.
Don't use filter paper.
Put the funnel tip so it is touching the side of the beaker.
This table shows the result of how much substance was dissolved in water. What is the amount of water?
25 mL of water
50 mL of water
100 mL of water
150 mL of water
What did we try to do using these 2 methods?
dissolve more substance
evaporate the solutions
cool the solutions
extract (recover) dissolved substances from the solution
What did we try to do using these methods? (You can choose more than 1 answer.)
Dissolve more substance.
Evaporate the solutions.
Decrease the temperature.
Extract (recover) dissolved substance from the solution.
When the temperature of the solution increases, ________________ alum can dissolve.
less
the same amount of
more
delicious
If you increase the temperature of saline solution, the amount of salt that can dissolve _____________.
is less
does not change much
is more
is white
Alum was mixed with water and some alum dissolved but some alum did not dissolve. How can you dissolve the remaining alum? (You can choose more than 1 answer.)
Cool the solution.
Heat the solution.
Add water.
Evaporate the solution.
