Straighterline CHEM101 General Chemistry I
Graded Exam 3 (New Version June 2024)
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Terms in this set (314)
total number of neutrons Mass Number
and protons in an atom; #
protons + # electrons
Most nonmetallic p
elements are found in
which block of the
periodic table?
Ernest Rutherford Positive matter is concentrated in the central core
disproved J.J. Thomson's
plum-pudding model of
the atom by showing
that...
Plants use up copious Potassium
amounts of which alkali
metal, preventing most of
it from being washed out
to sea?
What is the ratio of 2:1:1:2
reactants and products in
the chemical equation?
__NaOH + __H2SO4 -->
__Na2SO4 + __H2O
What is Avogadro's the number of ATOMS in 12g of Carbon-12
number? 1 g = 6.022 × 1023 amu
,What is the reducing Mg
agent in the following
equation?
Mg(s) + 2HCl(aq) ->
MgCl2(aq) + H2(g)
Which arrangement (s) < (l) < (g)
accurately describes the
standard entropy values
at different phases?
What are the most stable 2, 8, 20, 50, 82 or 126 protons
isotopes?
What element has been S = oxidized
oxidized and what N = reduced
element has been
reduced?
3CuS + 8HNO3 -->
3CuSO4 + 8NO + 4H2O
How do you convert multiply the atomic mass (grams) by the number of
from moles to grams? moles
How do you convert Divide the total number of grams by the atomic
from grams to moles? mass (grams) of 1 mole
measure of the amount of Mass
matter
made from atoms of 2+ Compound
elements that are
chemically bonded;
cannot be separated into
simpler substances by
any physical process; can
be separated by a
chemical reaction
,Definite shape and Solid
volume
Doesn't conform to
shape of container
Particles are very close
together in orderly
fashion with little
freedom of motion
Definite volume, Liquid
indefinite shape
Conforms to shape of the
part of the container it
fills
Particles are close
together but not rigidly in
position with freedom to
move past each other
No definite shape or Gas
volume
Conforms to shape and
volume of container
Particles separated by
distances very large
compared to size of
particles
Color, melting point, Physical Property
boiling point
Observed and measured
without changing identity
of substance
Observed by performing Chemical Property
a chemical change
, Combination of 2+ Mixture
elements, each retains its
identity and properties
Can be separated by
physical means into pure
components without
changing identity of
compounds
fixed composition and Pure Substance
differs from a mixture
(every sample has same
properties and
composition)
molecule with a charge Polyatomic Ion
contain more than 1 atom
chemically bonded
together
atoms with charge ions
formed by loss or gain of
an electron
positive ion, may have Cation
roman numeral
negative ion, element Anion
ends in -ide
atom of an element that isotope
has a different mass
because of a different
number of neutrons, but
same atomic number
total number of protons Atomic Number
in an atom; also indicates
number of electrons
Graded Exam 3 (New Version June 2024)
Leave the first rating
Terms in this set (314)
total number of neutrons Mass Number
and protons in an atom; #
protons + # electrons
Most nonmetallic p
elements are found in
which block of the
periodic table?
Ernest Rutherford Positive matter is concentrated in the central core
disproved J.J. Thomson's
plum-pudding model of
the atom by showing
that...
Plants use up copious Potassium
amounts of which alkali
metal, preventing most of
it from being washed out
to sea?
What is the ratio of 2:1:1:2
reactants and products in
the chemical equation?
__NaOH + __H2SO4 -->
__Na2SO4 + __H2O
What is Avogadro's the number of ATOMS in 12g of Carbon-12
number? 1 g = 6.022 × 1023 amu
,What is the reducing Mg
agent in the following
equation?
Mg(s) + 2HCl(aq) ->
MgCl2(aq) + H2(g)
Which arrangement (s) < (l) < (g)
accurately describes the
standard entropy values
at different phases?
What are the most stable 2, 8, 20, 50, 82 or 126 protons
isotopes?
What element has been S = oxidized
oxidized and what N = reduced
element has been
reduced?
3CuS + 8HNO3 -->
3CuSO4 + 8NO + 4H2O
How do you convert multiply the atomic mass (grams) by the number of
from moles to grams? moles
How do you convert Divide the total number of grams by the atomic
from grams to moles? mass (grams) of 1 mole
measure of the amount of Mass
matter
made from atoms of 2+ Compound
elements that are
chemically bonded;
cannot be separated into
simpler substances by
any physical process; can
be separated by a
chemical reaction
,Definite shape and Solid
volume
Doesn't conform to
shape of container
Particles are very close
together in orderly
fashion with little
freedom of motion
Definite volume, Liquid
indefinite shape
Conforms to shape of the
part of the container it
fills
Particles are close
together but not rigidly in
position with freedom to
move past each other
No definite shape or Gas
volume
Conforms to shape and
volume of container
Particles separated by
distances very large
compared to size of
particles
Color, melting point, Physical Property
boiling point
Observed and measured
without changing identity
of substance
Observed by performing Chemical Property
a chemical change
, Combination of 2+ Mixture
elements, each retains its
identity and properties
Can be separated by
physical means into pure
components without
changing identity of
compounds
fixed composition and Pure Substance
differs from a mixture
(every sample has same
properties and
composition)
molecule with a charge Polyatomic Ion
contain more than 1 atom
chemically bonded
together
atoms with charge ions
formed by loss or gain of
an electron
positive ion, may have Cation
roman numeral
negative ion, element Anion
ends in -ide
atom of an element that isotope
has a different mass
because of a different
number of neutrons, but
same atomic number
total number of protons Atomic Number
in an atom; also indicates
number of electrons
