Fill in the Blanks
Chemistry Final Review blanksOnline version
Key concept review
Thermal
energy
naturally
flows
from
warmer
to
cooler
matter
,
this
is
what
we
know
as
or
.
Matter
has
and
(
takes
up
space
)
.
A
balloon
filled
with
air
does
not
rise
as
high
as
a
balloon
filled
with
helium
gas
,
telling
me
that
helium
gas
is
less
than
air
.
A
is
a
single
kind
of
matter
that
has
a
specific
.
A
(
n
)
change
(
reaction
)
releases
energy
,
while
A
special
form
of
homogeneous
mixture
that
is
composed
of
evenly
distributed
solute
particles
in
a
solvent
is
called
a
(
n
)
.
A
(
n
)
change
(
reaction
)
absorbs
energy
.
A
(
n
)
is
the
smallest
part
of
a
substance
.
An
object
that
floats
on
water
has
a
less
than
1
-
g
/
mL
.
One
is
equal
to
one
thousand
.
The
amount
of
space
that
matter
fills
is
its
.
A
(
n
)
has
neither
a
definite
volume
nor
a
definite
shape
.
is
the
inward
force
among
the
molecules
of
a
liquid
.
A
(
n
)
solid
has
a
definite
melting
point
.
A
(
n
)
solid
has
a
melting
point
range
.
Both
gases
and
liquids
are
.
Freezing
occurs
when
the
particles
of
a
liquid
enough
energy
to
take
fixed
positions
.
The
temperature
at
which
a
liquid
turns
to
a
gas
is
its
point
.
The
process
that
makes
ice
cubes
shrink
as
they
sit
in
a
freezer
is
called
.
The
process
where
bromine
gas
touches
a
surface
and
becomes
crystals
is
called
.
Particles
of
a
have
the
greatest
thermal
energy
.
Glass
is
an
example
of
a
(
n
)
solid
.
Sublimation
and
both
happen
at
the
surface
of
a
substance
.
Vaporization
is
the
reverse
process
of
.
The
temperature
at
which
a
liquid
turns
to
a
solid
is
called
its
point
.
is
the
reverse
process
of
freezing
.
Water
particles
in
gas
coming
off
a
pan
of
boiling
water
are
moving
than
the
particles
of
water
in
the
pan
.
and
are
both
forms
of
vaporization
.
occurs
at
any
temperature
when
a
liquid
becomes
a
gas
on
the
surface
of
a
substance
.
occurs
at
a
specific
temperature
when
a
liquid
becomes
a
gas
beneath
and
on
the
surface
of
a
substance
.
As
a
result
of
Rutherford
?
s
gold
foil
experiment
scientists
inferred
that
an
atom
?
s
charge
must
be
concentrated
in
the
of
the
atom
.
Mendeleev
created
the
first
periodic
table
by
arranging
elements
in
order
of
atomic
.
The
atomic
number
of
an
element
is
the
number
of
in
its
.
You
can
predict
an
element
?
s
based
on
its
location
on
the
periodic
table
.
Metals
are
,
,
and
can
carry
an
electric
.
The
two
most
common
alkaline
earth
metals
are
and
.
At
room
temperature
,
more
than
half
of
the
nonmetal
elements
are
.
The
elements
that
do
not
react
to
form
compounds
under
normal
conditions
are
the
.
Beta
radiation
consists
of
particles
that
are
identical
to
.
Measurements
of
half
-
life
make
radioactive
isotopes
useful
for
determining
the
ages
of
and
.
The
elements
in
the
same
column
(
or
or
)
on
the
periodic
table
have
similar
.
The
most
reactive
metals
on
the
periodic
table
are
found
in
group
,
periods
-
which
are
the
metals
.
Most
elements
on
the
periodic
table
are
classified
as
.
A
material
that
is
can
be
pulled
or
drawn
into
a
long
wire
.
In
an
atom
,
the
number
of
and
are
equal
.
Elements
in
the
same
row
on
the
periodic
table
have
properties
that
change
in
a
pattern
.
The
is
the
number
of
protons
in
an
atom
.
orbit
the
nucleus
of
an
atom
.
have
properties
of
both
metals
and
nonmetals
.
are
negatively
charged
particles
in
an
atom
.
Fluorine
,
chlorine
,
bromine
,
and
iodine
are
all
part
of
the
family
.
The
atomic
nuclei
of
unstable
isotopes
release
fast
-
moving
particles
and
energy
in
a
process
called
decay
The
half
-
life
of
a
radioactive
isotope
is
the
length
of
time
needed
for
half
of
the
atoms
of
a
sample
to
.
Radioactive
isotopes
called
can
be
used
to
detect
some
medical
problem
s
A
piece
of
paper
will
provide
protection
from
radiation
.
The
series
of
electron
orbits
in
?
s
model
resemble
planets
orbiting
the
Sun
or
the
layers
of
an
onion
.
The
modern
periodic
table
is
organized
according
to
.
The
horizontal
rows
on
the
periodic
table
are
known
as
or
.
Nonmetals
can
be
found
on
the
side
of
the
periodic
table
.
Atoms
with
the
same
number
of
protons
and
different
numbers
of
neutrons
are
called
.
Scientific
theories
often
make
use
of
,
which
are
representations
of
an
idea
to
help
scientists
understand
what
they
cannot
directly
observe
.
Each
element
is
given
a
specific
that
usually
consists
of
one
or
two
letters
.
A
column
of
elements
on
the
periodic
table
is
called
a
or
a
because
they
have
similar
properties
Elements
that
easily
transmit
electricity
and
heat
display
the
property
known
as
.
The
spontaneous
emission
of
radiation
by
an
unstable
atomic
nucleus
was
named
by
Marie
Curie
.
Mendeleev
discovered
that
periodic
patterns
appeared
when
he
arranged
the
elements
in
order
of
atomic
The
property
of
an
element
that
indicates
the
number
of
protons
in
its
atoms
is
the
atomic
of
that
.
The
chemical
reactivity
of
metals
tends
to
from
left
to
right
across
the
periodic
table
.
In
1869
,
Dmitri
Mendeleev
created
the
first
version
of
the
Table
.
Most
metals
are
in
the
state
or
phase
at
room
temperature
.
The
is
the
very
small
center
of
an
atom
.
Elements
known
as
are
located
to
the
of
the
metalloids
on
the
periodic
table
.
At
room
temperature
,
all
the
metalloids
are
solids
,
while
many
of
the
nonmetals
are
.
Because
radioactive
isotopes
decay
at
a
predictable
rate
,
the
half
-
life
can
be
used
to
tell
how
old
a
material
is
by
the
process
of
decay
.
Two
ways
a
proton
and
a
neutron
are
similar
are
they
have
the
same
and
are
both
located
in
the
.
Atoms
are
neutral
because
they
have
equal
numbers
of
and
The
mass
of
a
(
n
)
is
so
small
that
it
doesn
?
t
really
change
the
mass
of
an
atom
.
When
uranium
-
238
decays
into
lead
-
206
,
the
difference
between
the
mass
of
uranium
and
lead
is
amu
,
A
(
n
)
alpha
particle
is
released
when
radium
decays
into
radon
,
while
a
(
n
)
particle
is
released
when
changing
a
neutron
into
a
proton
when
lead
decays
into
bismuth
.
radiation
is
always
released
during
any
type
of
radioactive
decay
.
metals
react
violently
with
water
.
metals
tend
to
be
less
reactive
than
the
families
to
the
left
and
right
of
them
.
is
so
unique
that
it
could
easily
be
placed
in
either
group
1
or
group
17
.
have
properties
of
metals
and
nonmetals
.
Ionic
compounds
that
dissolve
in
water
conduct
electricity
because
they
break
into
that
move
freely
.
When
electrons
are
between
two
atoms
,
a
covalent
bond
is
formed
.
A
melting
point
is
one
property
of
compounds
.
A
nonpolar
bond
is
formed
when
two
atoms
share
electrons
.
The
overall
on
an
atom
is
;
the
overall
charge
on
a
compound
is
(
)
.
When
an
atom
loses
an
electron
,
it
becomes
a
(
n
)
charged
.
A
bond
is
when
two
pairs
of
electrons
are
shared
between
two
atoms
.
Aluminum
foil
is
an
example
of
a
metal
that
is
.
A
chemical
bond
formed
when
two
atoms
share
electrons
is
called
a
(
n
)
bond
.
Molecular
compounds
that
dissolve
in
water
do
not
conduct
electricity
because
no
are
present
.
In
the
chemical
formula
for
an
ionic
compound
,
the
name
of
the
is
written
first
.
A
mixture
made
up
of
two
or
more
elements
,
at
least
one
of
which
is
a
metal
is
called
a
(
n
)
.
Fluorine
is
a
(
n
)
covalent
molecule
because
the
valence
electrons
are
shared
equally
between
the
two
fluorine
atoms
.
An
ionic
bond
is
the
attraction
between
charged
ions
.
The
most
reactive
metals
are
the
metals
.
When
the
atoms
in
elements
combine
to
form
compounds
,
their
change
.
The
substances
in
a
mixture
can
usually
be
seen
and
are
easily
separated
.
The
substances
in
a
mixture
are
evenly
distributed
and
you
cannot
see
the
parts
.
The
simplest
type
of
substance
is
a
(
n
)
,
which
is
made
up
of
atoms
,
molecules
,
or
compounds
.
The
SI
unit
for
weight
is
.
The
SI
unit
for
volume
is
cubic
,
but
the
common
unit
is
.
The
SI
unit
for
mass
is
a
,
but
the
common
unit
is
.
The
SI
unit
for
density
is
per
,
but
the
common
unit
is
per
.
The
ratio
of
each
type
of
atom
in
sulfuric
acid
,
H2SO4
,
is
hydrogen
to
sulfur
to
oxygen
.
The
physical
property
that
makes
metal
pots
good
for
cooking
is
thermal
.
The
metal
tungsten
is
used
in
incandescent
light
bulbs
because
of
its
property
of
conductivity
.
The
per
unit
volume
of
an
object
is
a
measure
of
its
.
The
mass
of
an
object
is
,
whereas
the
weight
of
the
same
object
depending
on
its
location
.
Butter
melting
in
a
pan
is
a
where
energy
is
absorbed
.
New
substances
are
produced
by
a
,
while
a
physical
change
does
not
result
in
a
new
substance
.
is
equal
to
one
thousand
milliliters
.
The
chemical
formula
for
water
is
and
for
hydrogen
peroxide
is
H2O2
.
Iron
replaces
copper
in
copper
(
II
)
chloride
Sodium
chloride
dissolves
in
water
2
Colorless
liquids
yellow
precipitate
Nail
corrodes
due
to
humidity
In
a
balanced
chemical
equation
,
are
.
Cold
pack
reacts
and
becomes
colder
Nitrogen
dioxide
decomposes
into
N2
gas
and
O2
gas
Zn
+
HCl
?
ZnCl2
+
H2
single
Na3
(
PO4
)
+
CaCl2
?
Ca3
(
PO4
)
2
+
NaCl
(
NH4
)
(
NO3
)
?
N2
+
O2
+
H2O
|