NEW
Font size
S
M
L
XL
WorksheetsIntroduction to Aqueous Solutions
Total questions: 23
Worksheet time: 17mins
Name
Class
Date
1.
What is a water molecule composed of?
a)
1 Hydrogen atom and 2 Oxygen atoms
b)
2 Hydrogen atoms and 1 Oxygen atom
c)
3 Oxygen atoms
d)
2 Helium atoms and 1 Oxygen atom
2.
What property of water allows it to be such a versatile solvent that it is often called the "universal solvent?"
a)
Purity
b)
Polarity and high surface tension
c)
High heat capacity
d)
Expansion upon freezing
3.
Why can water have no net charge but have slight charges in different parts of the molecule?
a)
The oxygen end is slightly negative and the hydrogen end is slightly positive
b)
The hydrogen end is slightly negative and the oxygen end is slightly positive
c)
The hydrogen and oxygen ends change in polarity
d)
Because it is hydrophobic
4.
why does water have a high surface tension
a)
London dispersion forces between water molecules
b)
Hydrogen bonds between molecules
c)
strong covalent bonds in water molecules
d)
high kinetic energy of molecules
5.
why is ice less dense
a)
hydrogen bonds in ice creates a less dense hexagonal structure
b)
hydrogen bonds in ice creates a more dense hexagonal structure
c)
hydrogen bonds in water are strong forces that dont let the water move
d)
water molecules move too fast to get into an arrangement in ice
6.
why is water the “universal solvent
a)
it can only dissolves a few solutes
b)
it dissolves many solutes
c)
it can dissolve the most amount of solutes
d)
it can not dissolve polar solutes
7.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
8.
A solution is a kind of ________.
a)
homogeneous mixture
b)
compound
c)
element
d)
heterogeneous mixture
9.
This is the part of a solution that dissolves
a)
Solute
b)
Solvent
c)
Solution
d)
Mixture
10.
What is a solvent?
a)
The substance that does the dissolving in a solution.
b)
The substance that is being dissolved in a solution.
c)
The mixing of different substances.
d)
The process in which neutral molecules lose or gain electrons
11.
__________ are made up of solutes and solvents.
a)
Solutions
b)
Suspension
c)
Colloid
12.
If an electrical current can run through a solution, it is said to contain
a)
magic
b)
nonelectrolytes
c)
electricity
d)
electrolytes
13.
Which of the following is an electrolyte?
a)
CH4
b)
I2
c)
LiBr
d)
CO
14.
How does a solution become supersaturated?
a)
dissolve lots of solute in it.
b)
dissolve a little solute in it.
c)
dissolve more solute than you should be able to.
d)
dissolve a super amount of solvent in it.
15.
A saturated solution is______
a)
No more solute can be dissolved
b)
More solute can be dissolved
c)
The solvent and solution
d)
A precipitate forms
16.
contains less solute than a saturated solution
a)
unsaturated solution
b)
saturated solution
c)
supersaturated solution
d)
two of the above
17.
Solutions in which electric currents cannot run through are said to be
a)
noncolloidal
b)
electrolytes
c)
nonelectrolytes
d)
conductors
18.
The rule that refers to polar molecules dissolving polar and nonpolar dissolving nonpolar is
a)
this dissolves that
b)
like dissolves like
c)
same dissolves same
d)
here dissolves there
19.
Which of the following is an electrolyte?
a)
sodium chloride
b)
sugar
c)
water
20.
If I dissolve carbon dioxide in water, what is my solvent?
a)
Carbon Dioxide
b)
There is no solvent
c)
Oxygen
d)
Water
21.
How does the surface tension of water compare with the surface tensions of most other liquids?
a)
It's lower
b)
It's about the same
c)
It's higher
d)
It's higher when a surfactant is added
22.
Why is a nonpolar substance able to dissolve a different nonpolar substance?
a)
They have similar attractive forces in their molecules
b)
They combine to produce a polar substance
c)
There is no attractive force between them
d)
Nonpolar substances cannot dissolve in each other
23.
Salts and other compounds that absorb moisture from the air are said to be
a)
aqueous
b)
hygroscopic
c)
surfactants
Reset
