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WorksheetsCHEMISTRY EXAM REVIEW PART 1
Total questions: 18
Worksheet time: 13mins
Name
Class
Date
1.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
2.
Which variable is affected by what is being tested?
a)
Dependent
b)
Independent
c)
Control
3.
Which variable is the one being tested?
a)
Dependet
b)
Independent
c)
Control
4.
What is the dependent variable in this question?
What affect will the shape of the airplane's nose have on the distance it flies?
What affect will the shape of the airplane's nose have on the distance it flies?
a)
hang time
b)
distance
5.
What does the 6 represent above the C
a)
Symbol
b)
Name
c)
Mass Number
d)
Atomic Number
6.
How many electrons can be held in the first energy level ?
a)
1
b)
2
c)
8
d)
16
7.
How many electrons can the 2nd energy level hold ?
a)
2
b)
4
c)
8
d)
16
8.
How many electrons can the 3rd energy level hold?
a)
2
b)
8
c)
16
d)
18
9.
____________ can move from one energy level to another when they gain or lose energy.
a)
electrons
b)
protons
c)
neutrons
d)
atoms
10.
The __________ of an atom is the sum of the protons and neutrons in the nucleus of that atom.
a)
mass number
b)
atomic number
c)
atomic weuight
d)
isotope weight
11.
Cations are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
12.
Anions are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
13.
If an atom gains 3 electrons, what charge will it have as an ion?
a)
+3
b)
-3
c)
+5
d)
-5
14.
What does the following ion mean
Na +1
Na +1
a)
sodium gains an electron
b)
sodium loses an electron
c)
sodium gains a proton
d)
sodium loses a proton
15.
What does the following ion mean
S-2
S-2
a)
sulfur gains 2 electrons
b)
sulfur loses 2 electrons
c)
sulfur gains 2 protons
d)
sulfur loses 2 protons
16.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
17.
What element is represented in this Bohr Model?
a)
Carbon
b)
Hydrogen
c)
Aluminum
d)
Lithium
18.
Find the density of a 2 cm x 2 cm x 2 cm cube with a mass of 64 g.
a)
6 cm3
b)
12 g/cm3
c)
128 g/cm3
d)
8 g/cm3
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