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Questions Bank (1496148 total)
Which of the following phrases describes the contribution of John Dalton in chemistry?
Discovered the modern periodic table
0%
None of the choices
0%
Discovered the existence of electrons
0%
Proposed that matter was continuous
0%
Proposed the atomic theory
0%
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It states that when filling up orbitals of equal energy, electrons fill them singly first with parallel spins.
None of the choices
0%
Hund's Rule
100%
Bohr's Model
0%
Aufbau Principle
0%
Pauli Exclusion Principle
0%
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Which of the following is a carboxylic acid?
100%
0%
0%
0%
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A reaction that involves the formation of a solid product is
oxidation-reduction reaction.
0%
None of the above
0%
combustion reaction.
0%
gas evolution reaction.
0%
precipitation reaction.
100%
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A type of general reaction characterized by the presence of a single reactant?
Combination
0%
Decomposition
0%
Exchange
0%
Displacement
0%
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Which of the following is NOT a characteristic of an acidic solution?
The [OH
–
] is greater than 1.0 x 10
–7
0%
The
pH is less than 7.0
0%
The [H
3
O
+
] is greater than the
[OH
–
]
0%
The [OH
–
] is 6.0 x 10
–10
0%
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Which of the following is the correct orbital diagram for nitrogen?
0%
100%
None of the choices
0%
0%
0%
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Which of the following is an example of an endothermic process?
Condensation of rain from water vapor
0%
Evaporation of water
100%
Rusting of iron
0%
Combustion of fuels
0%
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Form of electromagnetic radiation that contains photons with the lowest energy?
X-rays
0%
Gamma Rays
0%
Infrared Radiation
0%
Radio Waves
0%
Microwaves
0%
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Which subshell letter corresponds to a spherical orbital?
s
0%
p
0%
d
0%
f
0%
Not enough information
0%
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