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WorksheetsTime to Review Chemistry
Total questions: 51
Worksheet time: 31mins
Name
Class
Date
1.
If you add different liquids to
a graduated cylinder and they settle into different layers, what property is represented?
a graduated cylinder and they settle into different layers, what property is represented?
a)
density
b)
boiling point
c)
melting point
2.
Na2
The number below the a is called
The number below the a is called
a)
product
b)
coefficient
c)
subscript
3.
The law of Conservation of matter states that the mass before the reaction is ______ after the reaction.
a)
greater
b)
less than
c)
the same
4.
Which one is chemically bonded?
a)
compound
b)
element
c)
mixture
5.
A burned log is
a)
physical change
b)
chemical change
6.
Paper torn in little pieces is
a)
chemical change
b)
physical change
7.
Which substance is made of only one kind of atom?
a)
compound
b)
element
c)
mixture
8.
What kind of mixture is air?
a)
homogenous
b)
heterogeneous
9.
Trail mix is what kind of mixture?
a)
homogenous mixture
b)
heterogenous mixture
10.
Trail mix is what kind of mixture?
a)
homogenous mixture
b)
heterogenous mixture
11.
If you add carbon dioxide and lime water together you will get a solid to form. What is the solid substance called?
a)
metalloid
b)
solid
c)
precipitate
12.
What is found on the periodic table?
a)
common molecules
b)
elements
c)
chemical formulas
13.
A substance that can determine if a solution is an acid or a base is
a)
an indicator
b)
a solvent
c)
a determiner
14.
If you add phenothalein to an unknown substance and it turns pink, you know it is
a)
an acid
b)
a base
c)
a neutral
15.
What number indicates a neutral solution?
a)
1
b)
7
c)
17
16.
Which is the strongest acid?
a)
pH of 6
b)
pH of 13
c)
pH of 1
d)
pH 7
17.
You have a solution that turns red litmus paper blue and has a pH of 10.
a)
acid
b)
base
c)
neutral
18.
You have a solution that turns blue litmus paper red and has a pH of 3.
a)
acid
b)
base
c)
neutral
19.
What charge do electrons have?
a)
positive
b)
negative
c)
neutral
20.
Which is the correct formula for rust?
a)
CO2
b)
C6H12O6
c)
Fe2O3
21.
What is the atomic mass of "F"
a)
9
b)
18
c)
17
d)
19
22.
What does the C represent?
a)
atomic mass
b)
atomic number
c)
element name
d)
chemical symbol
23.
which one of the following is found on the left side of the periodic table
a)
nonmetals
b)
metals
c)
metalloid
24.
What are the horizontal rows------>
called on the periodic table? .
called on the periodic table? .
a)
periods
b)
groups
c)
rows
25.
What does the green zigzag line represent
on the periodic table?
on the periodic table?
a)
metals
b)
metalloids
c)
non metals
26.
Which side of the periodic
table are nonmetals found?
table are nonmetals found?
a)
right
b)
left
c)
middle
27.
Which element is in period two,
group three?
group three?
a)
Mg
b)
Li
c)
Be
28.
columns that go up & down
(Vertical )
are called?
(Vertical )
are called?
a)
rows
b)
groups
c)
columns
29.
4Fe + 3O2 ---> 2Fe2O3
In this equation what is the product?
In this equation what is the product?
a)
4Fe +O3
b)
3O2
c)
2Fe2O3
30.
4Fe + 3O2 ---> 2Fe2O3
In this equation what is the product?
In this equation what is the product?
a)
4Fe +O3
b)
3O2
c)
2Fe2O3
31.
Give the coefficient for the following
product of this equation:
4Fe +3O2 → 2Fe2O3
product of this equation:
4Fe +3O2 → 2Fe2O3
a)
2
b)
3
c)
4
32.
What side of the arrow are
the reactants found?
the reactants found?
a)
right
b)
left
33.
How many atoms of iron are there in the product of this equation
4Fe2 +3O2 → 2Fe2O3
4Fe2 +3O2 → 2Fe2O3
a)
8
b)
6
c)
4
d)
2
34.
Select the one that is a not in the same category as the other properties
a)
rust
b)
evaporation
c)
bubbles
d)
temperature increase
35.
A burned log is
a)
physical change
b)
chemical change
36.
Where are electrons found in an atomic model?
a)
nucleus
b)
outer shell
37.
What is the formula for density?
a)
density = mass x volume
b)
density = mass / volume
c)
density = mass + volume
d)
density = mass - volume
38.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
39.
Which liquid is the least dense?
a)
oil
b)
water
c)
syrup
d)
plastic bottle
40.
Which box has a higher density?
a)
Box A
b)
Box B
c)
cannot be determined
d)
they are the same
41.
the central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
42.
Which of the following is a subatomic particle with no charge that is found in the nucleus of an atom?
a)
Electron
b)
Proton
c)
Neutron
d)
Quark
43.
The sum of the protons and neutrons in the nucleus of an atom
a)
Atomic Number
b)
Compound
c)
Electrons
d)
Mass Number (also called Atomic Mass)
44.
How many elements are represented in the compound?
Na2CO3
Na2CO3
a)
1
b)
2
c)
3
d)
4
45.
Values from 0-14 that determine the acidity of a solution
a)
Molarity
b)
Electronegativity
c)
pH scale
d)
Solubility
46.
is this object acidic or base
a)
Acidic
b)
Base
c)
neither
d)
neutral
47.
Tastes Sour
a)
Acids
b)
Bases
c)
Salts
d)
All
48.
Holly has an unknown substance in a beaker. She wants to determine the relative pH of the unknown substance. She places a piece of blue litmus paper into the substance, and the litmus paper stays blue.
The substance in the beaker
The substance in the beaker
a)
is a base.
b)
has a neutral pH.
c)
is an acid.
d)
does not have a pH.
49.
Carrie's teacher hands out test tubes filled with different chemicals and tells the students to identify their liquid as an acid, base, or neutral chemical. Carrie's test tube contains a clear chemical. She adds phenolpthalein to her test tube and gently moves the tube from side to side. A few moments later, the chemical in the test tube turns bright pink.
What type of chemical does Carrie have?
What type of chemical does Carrie have?
a)
Carrie has a neutral chemical.
b)
Carrie has an acidic chemical.
c)
Carrie has a basic chemical.
d)
The type of chemical Carrie has cannot be determined.
50.
The pH of a solution is tested, and it is found to be a basic solution. Of the following choices, what could the pH have been?
a)
3
b)
9
c)
7
d)
5
51.
A solution with a pH of 7 is________
a)
increasing
b)
neutral
c)
decreasing
d)
apple juice
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