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Properties of Water and Solutions

Total questions: 25

Worksheet time: 50mins

Name
Class
Date
1.
Attractions between water molecules are called
a)
Covalent bonds
b)
Ionic bonds
c)
Polar bonds
d)
Hydrogen bonds
2.
What is the reason why oil and water don't mix?
a)
Oil is too heavy to mix with water
b)
Water can only mix with polar molecules 
c)
Water can only mix with non-polar molecules
d)
Oil is too light to mix with water 
3.
Water is a universal solvent because it...
a)
It can be found anywhere
b)
It freezes when it gets cold
c)
floats when frozen
d)
Dissolves most substances
4.
Which end of the water molecule has a slightly positive charge?
a)
the oxygen end
b)
the hydrogen end
c)
both ends are slightly positive
d)
neither end is positive
5.
The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form
a)
less polar
b)
more polar
c)
less dense
d)
more dense
6.
Solution where more solute can still be dissolved at the given temperature. 
a)
Saturated
b)
Unsaturated
c)
Supersaturated
d)
Homogeneous solution
7.
The ___ is the thing being dissolved.
a)
solute
b)
solvent
c)
mixture
d)
suspension
8.
Water is essential for life. Its special properties make water the single most important molecule in plant life. Which of the following properties of water enables it to move from the roots to the leaves of plants?
a)
Water expands as it freezes.
b)
Water is an excellent solvent.
c)
Water exhibits cohesive behavior.
d)
Water is able to moderate temperature.
9.
Water is often called the "universal solvent" because many substances can be dissolved in water. What property of water allows it to be such a versatile solvent? 
a)
purity
b)
polarity and cohesion
c)
high heat capacity
d)
expansion upon freezing
10.
Water makes up approximately 60% of the human body and plays a vital role in regulating body temperature. Which property of water makes it good at regulating temperature?
a)
Water is a good solvent.
b)
Water exhibits strong cohesion.
c)
. Water has an unusual crystalline structure.
d)
Water has a high capacity for heat.
11.
A florist places a bouquet of white carnations in water containing blue dye. After a time, the flowers turn blue. What process helped the carnations to change color?
a)
Specific heat 
b)
Surface tension
c)
Cohesion and adhesion of water molecules 
d)
Formation of covalent bonds between hydrogen and oxygen molecules
12.

A solution that has the maximum amount of solute dissolved in the solvent is called __________________.

a)

saturated

b)

supersaturated

c)

unsaturated

d)

suspension

13.

A solution that has more than the maximum amount of solute dissolved in the solvent is called __________________.

a)

saturated

b)

supersaturated

c)

unsaturated

d)

suspension

14.

A small amount of NaCl is dissolved in water to make a solution. In this solution

a)

water is the precipitate

b)

water is the solute

c)

NaCl is the solvent

d)

NaCl is the solute

15.

sand in water

a)

solution

b)

colloid

c)

suspension

d)

alloy

16.

Sunscreen

a)

solution

b)

colloid

c)

suspension

d)

Alloy

17.

What is it called when light passes through a colloid and scatters/spreads out

a)

tyndall effect

b)

spreading out effect

c)

fog effect

d)

substance effect

18.

Which one is not a colloid?

a)
b)
c)
d)
19.
Sugar water let's light pass through, and is a homogeneous mixture
a)
solution
b)
suspension
c)
colloid
20.

Water, H2O, is classified as what type of molecule?

a)

a polar molecule

b)

a nonpolar molecule

c)

a coordinate covalent compound

d)

an ionic compound

21.

Liquids made up of polar molecules are really good at dissolving ___

a)

metallic solids

b)

lipids and fats

c)

molecular solids

d)

solids composed of polar or ionic compounds

22.
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?

a)
stir the powder in the liquid
b)
freeze the mixture
c)
add more powder to the liquid
d)
store the mixture in a dark place
23.
Water beads up on the surface of a penny because of this property.
a)
Adhesion
b)
High Surface Tension
c)
Universal Solvent
d)
Changes in Density
24.

Water's ability to stick to glass is

a)

adhesion

b)

cohesion

c)

surface tention

d)

capillary action

25.
tendency of molecules of the same kind to stick to one another
a)
cohesion
b)
adhesion
c)
solution
d)
polar molecule