NEW
Font size
S
M
L
XL
WorksheetsExam Review #1
Total questions: 15
Worksheet time: 11mins
Name
Class
Date
1.
What is the chemical formula for magnesium bromate?
a)
MgBr
b)
MgBr2
c)
MgBrO3
d)
Mg(BrO3)2
2.
How are compounds with metallic bonds similar to ionic compounds?
a)
Both tend to have double bonds
b)
Both tend to have low boiling points
c)
Both tend to have poor conductivity
d)
Both tend to have high melting points
3.
Which of these elements has the greatest atomic radius?
a)
H
b)
N
c)
Cl
d)
Cs
4.
A substance with a high hydroxide concentration would have which pH value?
a)
6.8
b)
3.0
c)
13.5
d)
2.3
5.
Ionic compounds in solution are describe as
a)
can conduct electricity
b)
dissolves nonpolar solutions
c)
cannot conduct electricity
d)
are neutral in solution
6.
Why is potassium chloride able to dissolve in water
a)
K is attractive to the negative H side
b)
K is attracted to the positive H side
c)
K is attracted to the negative O side
d)
K is attracted to the positive O side
7.
What happens when an electron transitions from n=5 to n=2?
a)
energy is absorbed, visible light is emitted
b)
Energy is released, visible light is emitted
c)
Energy is released, IR light is emitted
d)
Energy is absorbed, IR is emitted
8.
When gamma rays are emitted by an element, what happens to the atomic mass and the atomic number?
a)
both stay the same
b)
mass changes, number does not
c)
mass stay the sames, numbers changes
d)
both change
9.
How does a single bond compare to a double bond?
a)
single is stronger and longer
b)
single is stronger and shorter
c)
single is weaker and shorter
d)
single is weaker and longer
10.
Which molecule has a triple bond?
a)
F2
b)
O2
c)
Cl2
d)
N2
11.
Which of these compounds will form a precipitate with Na2SO4?
a)
LiNO3
b)
KNO3
c)
Mg(NO3)2
d)
Ba(NO3)2
12.
2Cr + O2 = 2CrO, classify this reaction
a)
decomposition
b)
synthesis
c)
single replacement
d)
double replacement
13.
Which element has 8 valence electrons?
a)
K
b)
O
c)
He
d)
Ne
14.
How are the bonds formed in a polar covalent compound?
a)
electrons are shared unequally
b)
electrons are shared equally
c)
electrons are gained
d)
electrons are lost
15.
How does increasing the temperature affect a chemical reaction?
a)
reactants absorb the heat
b)
activation energy is decreased
c)
the kinetic energy increases
d)
it increases the surface area
Reset
