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WorksheetsMixtures, Solutions, Acids, Bases, and Chemical Reactions
Total questions: 30
Worksheet time: 23mins
Name
Class
Date
1.
Which of the following is a solution?
a)
cereal
b)
blood
c)
trail mix
d)
fruit juice
2.
What is another name for solution?
a)
heterogeneous mixture
b)
homogeneous mixture
c)
compound
d)
substance
3.
"Like dissolves like" means that polar solvents dissolve _________________ solutes.
a)
nonpolar
b)
covalent
c)
polar
d)
element
4.
Which is the greatest quantity in a solution?
a)
solvent
b)
solute
c)
substance
d)
acids
5.
Which ion is produced when an acid is dissolved in water?
a)
hydroxide
b)
hydrogen
c)
helium
d)
hydrochloric
6.
Which ion is produced when a base is dissolved in water?
a)
hydroxide
b)
hydrogen
c)
helium
d)
hydrochloric
7.
Acids have pH values of
a)
7
b)
less than 7
c)
more than 7
d)
14
8.
Bases have pH values of
a)
7
b)
less than 7
c)
more than 7
d)
0
9.
Acids taste _____________.
a)
sweet
b)
bitter
c)
salty
d)
sour
10.
Bases taste ______________.
a)
bitter
b)
salty
c)
sweet
d)
sour
11.
What are the two terms used to describe concentration?
a)
mass and volume
b)
temperature and pressure
c)
concentrated and dilute
d)
solute and solvent
12.
Which two factors affect how much a solute can dissolve in a solvent?
a)
mass and volume
b)
temperature and pressure
c)
concentrated and dilute
d)
polar and nonpolar
13.
If you have a saturated solution, which is true?
a)
more solute can be dissolved
b)
temperature is increased
c)
amount of solute = amount of solvent
d)
no more solute can be dissolved
14.
As temperature increases, solubility of a solid __________________.
a)
increases
b)
decreases
c)
stays the same
d)
is not affected
15.
What holds elements in a compound together?
a)
atoms
b)
protons
c)
neutrons
d)
chemical bonds
16.
Which is an example of a chemical change?
a)
mixing
b)
dissolving
c)
rusting
d)
boiling
17.
Which is an example of a physical change?
a)
rusting
b)
tarnishing
c)
burning
d)
dissolving
18.
How can mixtures be separated?
a)
using chemical properties
b)
using physical properties
c)
breaking chemical bonds
d)
observing under a microscope
19.
What is a group of symbols and numbers that represent a compound?
a)
chemical formula
b)
chemical reaction
c)
chemical property
d)
chemical bond
20.
What is a compound that changes color due to different pH values?
a)
acid
b)
base
c)
indicator
d)
mixture
21.
What is the small amount of substance dissolved in a solution?
a)
solvent
b)
solute
c)
solution
d)
atoms
22.
In a chemical formula, what is a coefficient?
a)
a number that represents how many molecules are present
b)
a number that represents how many atoms are present
c)
a number that represents how many protons are present
d)
a number that represents the charge
23.
In a chemical formula, what is a subscript?
a)
A number that represents how many molecules are present
b)
a number that represents how many atoms are present
c)
a number that represents how many protons are present
d)
a number that represents the charge
24.
What are the signs of a chemical change?
a)
shape change, color change, state change
b)
state change, bubbles, size change
c)
shape change, odor change, state change
d)
bubbles, odor change, precipitate
25.
How many total atoms are present in
4H2O?
4H2O?
a)
7
b)
9
c)
12
d)
14
26.
Which is an example of an element?
a)
air
b)
water
c)
sodium
d)
sugar
27.
Which is an example of a polar molecule?
a)
carbon dioxide
b)
table sugar
c)
water
d)
methane
28.
In an ionic bond, what happens to the valence electrons?
a)
they are transferred
b)
they are shared
c)
they are reused
d)
they are dissolved
29.
Which is an example of a substance?
a)
air
b)
lemonade
c)
soil
d)
water
30.
You drop a sugar cube into a cup of hot tea. What causes the sugar to disappear in the tea?
a)
It breaks into elements
b)
It evaporates
c)
It melts
d)
It mixes evenly
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