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