Matter is made up of particles whose properties determine the observable characteristics of matter and its reactivity.
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Q 1/74
Score 0
According to the wave-mechanical model,
an orbital is defined as the most probable
location of
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a neutron
a positron
an electron
a proton
Q 2/74
Score 0
The part of an atom that has an overall positive
charge is called
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the first shell
the nucleus
the valence shell
an electron
74 questions
Q.
According to the wave-mechanical model,
an orbital is defined as the most probable
location of
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4.3
Q.
The part of an atom that has an overall positive
charge is called
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4.3
Q.
Which subatomic particles each have a mass of
approximately 1 u?
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The discovery of the electron as a subatomic
particle was a result of
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The elements on the Periodic Table of the
Elements are arranged in order of increasing
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Which substance can be broken down by
chemical means?
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In terms of entropy and energy, systems in
nature tend to undergo changes toward
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Amines, amides, and amino acids are
categories of
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Which type of reaction produces soap?
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For a reaction system at equilibrium,
LeChatelier's principle can be used to
predict the
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Which reaction occurs at the anode in an
electrochemical cell?
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What evidence indicates that the nuclei of
strontium-90 atoms are unstable?
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The results of the gold foil experiment led to the
conclusion that an atom is
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Atoms are neutral because the number of
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In the ground state, valence electrons of a
krypton atom are found in
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4.3
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According to the wave-mechanical model of the
atom, electrons are located in
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The elements on the Periodic Table of the
Elements are arranged in order of increasing
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4.3
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Which element is malleable at STP?
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Which two terms represent types of chemical
formulas?
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Which quantities are conserved in all chemical
reactions?
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Which term represents the sum of the atomic
masses of the atoms in a molecule?
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4.3
Q.
A beaker contains a dilute sodium chloride
solution at 1 atmosphere. What happens to the
number of solute particles in the solution and
the boiling point of the solution, as more sodium
chloride is dissolved?
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Which term identifies a factor that will shift a
chemical equilibrium?
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4.3
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According to which theory or law is a chemical
reaction most likely to occur when two particles
with the proper energy and orientation interact
with each other?
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Addition of a catalyst can speed up a reaction by
providing an alternate reaction pathway that
has a
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4.3
Q.
Which compound is saturated?
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Which statement describes an electrolyte?
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Which type of reaction occurs when an
Arrhenius acid reacts with an Arrhenius base to
form a salt and water?
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4.3
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The three nuclides, U-233, U-235, and U-238, are isotopes of uranium because they have the same
number of protons per atom and
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4.3
Q.
Which nuclear emission has the least penetrating
power and the greatest ionizing ability?