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Chemistry B Final Exam Review
Test Description: Test Review
Instructions: Answer all questions to get your test result.
1) What is the charge of an anion?
A
No charge
B
Positive
C
Negative
D
None of the above
2) What is the charge of a cation?
A
Negative
B
None of the above
C
Positive
D
No charge
3) Which of the following is the numner of electrons in the ion given correctly?
A
N- has 7 electrons
B
Na+ has 10 electrons
C
B3+ has 5 electrons
D
Cl- has 17 electrons
4) What the name of this ion: Fe2+
A
Iron (II)
B
Iron (III)
C
Scandium (IV)
D
Scandium (II)
5) What is the name of this ion: F-
A
Floride
B
Fluorine
C
Fluoride
D
None of these are correct
6) Name this compound: K2O
A
Potassium oxalate
B
Potassium ion oxide
C
Potassium oxsende
D
Potassium oxide
7) What two subatomic particles want to stay as far apart as possible in an atom?
A
Pairs of electrons
B
Paris of photons
C
Pairs of neutrons
D
Pairs of protons
8) Outermost electrons
A
paired electrons
B
outside electrons
C
valence electrons
D
orbital electrons
9) What is the shape of a water molecule?
A
tetrahedral
B
linear
C
trigonal planar
D
bent
10) When five pairs of electrons are shared in a molecule, what shape will the molecule be?
A
tetrahedral
B
linear
C
trigonal bipyramidal
D
bent
11) What is the molar mass of O2?
A
8 g
B
32 g
C
16 g
D
64 g
12) Ionic compounds end in the suffix __________________.
A
ide
B
ite
C
ade
D
ate
13) In a chemical reactions, energy can be
A
absorbed
B
released
C
neither released no absorbed
D
released or absorbed
14) What is a chemical reaction like?
A
Equal atoms on both sides
B
More atoms on the reactant side
C
It depends on the reactions
D
More atoms on the product side
15) What can be changed when balancing an equation?
A
molecule names
B
chemical names
C
subscripts
D
coefficients
16) Choose the false statement- The particles of gas are
A
relatively far apart
B
compressible
C
always in motion
D
arranged in an orderly pattern
17) What instrument is normally used to measure atmospheric pressure?
A
barometer
B
thermometer
C
hydrometer
D
spectrometer
18) Which unit represents pressure?
A
pascal
B
newton
C
mole
D
joule
*select an answer for all questions
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