WorksheetsMatter Section 2.0 Review
Total questions: 23
Worksheet time: 15mins
All of the following are true of solutions EXCEPT:
they cannot be filtered
they appear to be one substance
they will settle after a long time
vinegar is an example
Check all of the following that are mechanical mixtures:
cookie dough
helium
salad dressing
textbook
Which of the following is an example of an element?
salt
sugar
water
iron
Mayonnaise is an example of a ____________
suspension
mixture
solution
colloid
In a solution of sea water, salt is the solute.
True
False
An aqueous solution is one in which the solvent is:
ethanol
water
benzen
acetone
Paper chromatography is used to tell if something is:
a solution or mixture
a solution or pure substance
a solution or colloid
a mixture or a suspension
Something that flows and can be a liquid or a gas is a:
solution
mixture
fluid
colloid
A mixture of water and a solid is a:
mixture
slurry
colloid
solution
A concentrated solution has a _______ amount of solute and a ______________ amount of solvent.
large, large
small, small
large, smale
small, large
Which solution is most concentrated?
solution A
solution B
solution C
Which solution is most dilute?
solution A
solution B
solution C
Which substances solubility is the LEAST affected by temperature?
sodium chloride
potassium iodide
sodium nitrate
potassium chlorate
What is the solubility of sodium nitrate at 75oC?
155 g/100 cm3
35 g/100cm3
135 g/100 cm3
143 g/100 cm3
How much more potassium iodide will dissolve than sodium nitrate at 15oC?
55 g
70 g
100 g
120 g
Which substance is the least soluble at 90oC?
potassium chlorate
sodium chloride
sodium nitrate
potassium iodide
In a saturated solution:
more solute will dissolve if you stir it
more solute will dissolve if you increase the temperature
more solute will dissolve at that temperature
no more solute will dissolve at that temperature
Both 2 and 4
For gases:
solubility increases as temperature increases
solubility decreases as temperature increases
solubility is not affected by temperature
All of the following are part of the particle model of matter EXCEPT:
the particles are always in motion
there are attractions between particles which is how substances are held together
The particles have spaces between them
the states of matter are solids, liquids and gases
Which motion describes how solids behave?
vibrating
flowing
bouncing around
Substances that take the shape of the container, are not rigid and particles that flow or slide around describes a:
solid
liquid
gas
fluid
Liquid nitrogen is commonly used. It is the process where a liquid changes to a gas under extreme temperatures. This is an example of:
condensation
freezing
evaporation
melting
To make sugar dissolve in water faster, you could do all of the following EXCEPT:
stir the solution
pour the solution into a larger beaker
increase the temperature
grind the sugar into small pieces
