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