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WorksheetsChem Final Review
Total questions: 45
Worksheet time: 2hrs 43mins
Name
Class
Date
1.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
2.
all matter is made of what
a)
energy
b)
atoms
c)
electrons
d)
compounds
3.
If the number of protons equal the number of _____, the atom will have no charge
a)
protons
b)
neutrons
c)
electrons
d)
nucleus
4.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
5.
What is the mass number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
6.
Ions are:
a)
atoms with a positive or negative charge
b)
atoms with no charge
c)
atoms with ONLY a positive charge
d)
atoms with ONLY a negative charge
7.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
8.
'Element' refers to substances that are...
a)
Solid
b)
Liquid
c)
Made of only one type of atom
d)
Made of more than one type of atom
9.
Which of the following is not a compound?
a)
Carbon dioxide
b)
Water
c)
Oxygen gas
d)
Calcium carbonate
10.
How many electrons in Fluorine's outer shell?
a)
1
b)
2
c)
7
d)
8
11.
Which group has a full outer shell?
a)
Noble Gases
b)
Alkali Metals
c)
Halogens
d)
Transition Metals
12.
What is an example of a physical change?
a)
Rusting
b)
Freezing
c)
Food digestion
d)
Burning toast
13.
What word describes going straight from a solid to a gas?
a)
Sublimation
b)
Condesation
c)
Evaporation
d)
None of the above
14.
How close are the molecules in a solid?
a)
Very far apart
b)
Close together
c)
Far apart
15.
2H2 + O2 ----> 2H2O What is the product?
a)
------>
b)
2H2O
c)
2H2+ O2
16.
Elements on the left side of the periodic table are classified as
a)
metals
b)
metalloids
c)
nonmetals
d)
gases
17.
The atoms along the staircase are called
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
18.
If an atom had the same properties as fluorine (F), it would probably be located in
a)
period 1.
b)
period 2.
c)
group 2.
d)
group 17.
19.
A chemical reaction is balanced when
a)
both sides have the same elements
b)
Both sides have the same number of atoms
c)
Same subscripts
d)
Same coefficients
20.
You know you a chemical reaction has occurred if
a)
there is a precipitate.
b)
there is a color change.
c)
there is a temperature change.
d)
All of these answers are evidence.
21.
The amount of space something takes up
a)
Mass
b)
Volume
c)
weight
22.
Name CCl4
a)
carbon carbon tetraiodide
b)
carbon tetrachloride
c)
monocarbon tetrachloride
d)
water
23.
Name SO2
a)
monosulfur dioxide
b)
sulfur dioxide
c)
sulfur oxide
d)
sulfur (II) oxide
24.
what is a pure substance that cannot be changed into a simpler substance?
a)
element
b)
Molecule
c)
Mixture
d)
Compound
25.
Covalent bond is...?
a)
Sharing electrons between metals and non-metals
b)
sharing electrons between non-metals
c)
transfer of electrons
d)
All the above
26.
Which of the following is the correct Lewis structure for the compound PBr3?
a)
structure A
b)
structure B
c)
structure C
d)
structure D
27.
According to the octet rule most elements need _______ valence electrons.
a)
2
b)
8
c)
6
d)
18
28.
In the correct Lewis structure for CH4, how many unshared electron pairs surround the carbon?
a)
2
b)
8
c)
0
d)
4
29.
What is the name of the molecular geometry for this Lewis Structure?
a)
trigonal planar
b)
trigonal pyramidal
c)
tetrahedral
d)
bent
30.
What molecular geometry does this molecule exhibit?
a)
linear
b)
tetrahedral
c)
trigonal pyramidal
d)
trigonal planar
31.
How many more electrons does Oxygen need to fill its outer shell?
a)
3
b)
4
c)
1
d)
2
32.
Which of the following is not a property of metals?
a)
brittle
b)
malleable
c)
lustrous
d)
conductive
33.
Balance this reaction: __NaClO3 --> __NaCl + __O2
a)
2,2,2
b)
2,2,3
c)
3,2,2
d)
1,2,3
34.
Balance this reaction: ____ RbNO3 + ____ BeF2 ----> ____ Be(NO3)2 + ____ RbF
a)
1,1,1,1
b)
1,2,1,1
c)
2,1,1,2
d)
2,1,2,1
35.
What kind of reaction is this:
2H2 + O2 --> 2H2O
2H2 + O2 --> 2H2O
a)
Synthesis
b)
Decomposition
c)
Single Replacement
d)
Double Replacement
36.
What kind of reaction is this:
2C3H7OH +9O2 -> 6CO2 + 8H2O
2C3H7OH +9O2 -> 6CO2 + 8H2O
a)
Double Replacement
b)
Combustion
c)
Single Replacement
d)
Decomposition
37.
What type of reaction is illustrated below?
2HI --> H2 + I2
2HI --> H2 + I2
a)
synthesis
b)
decomposition
c)
single replacement
d)
double replacement
38.
Name Fe(NO3)3
a)
Iron (III) Nitrate
b)
Iron (III) Nitride
c)
Iron (VI) Nitrate
d)
Iron Nitrate
39.
Name Al(CN)3
a)
Aluminum Cyanide
b)
Aluminum Carbon Nitrogen
c)
Aluminum Tricarbon trinitride
d)
Aluminum Tricarbonitride
40.
What is the formula for magnesium phosphide?
a)
Mg3P2
b)
Mg2P3
c)
Mg2PO3
d)
Mg3(PO3)2
41.
Which of the following would be considered quantitative data?
a)
Color
b)
Smell
c)
6.84 cm
d)
texture
42.
Convert 3.5 gallons into cups. (1gal = 16cups)
a)
56 cups
b)
0.21875 cups
c)
19.5 cups
d)
48 cups
43.
Write 0.00000707 in scientific notation.
a)
7.07 x 10-6
b)
7.07 x 106
c)
707 x 108
d)
707 x 10-8
44.
Write 7.113 x 107 in standard form.
a)
71,130,00
b)
7,113,000
c)
0.0000007113
d)
7,113
45.
How many kilograms of calcium are there in 173 pounds of calcium? (1 pound = 454 grams; 1 kg = 1000 g)
a)
1.10 kg
b)
78.5 kg
c)
110 kg
d)
78500 kg
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