Compléter
Intro to chem chapter 5
Chemistry
introduces
how
substances
transform
in
a
.
are
substances
that
enter
the
reaction
,
while
are
the
new
substances
formed
.
The
rate
of
a
reaction
depends
on
factors
such
as
temperature
,
concentration
,
and
.
Activation
energy
is
the
minimum
energy
required
to
start
a
reaction
.
A
lowers
this
barrier
without
being
consumed
.
Reactions
can
release
energy
(
)
or
absorb
energy
(
)
,
influencing
temperature
changes
in
the
surroundings
.
has
mass
and
volume
(
takes
up
)
.
is
the
study
of
matter
and
the
changes
in
matter
.
A
lowers
this
barrier
without
being
consumed
.
Reactions
can
release
energy
(
)
or
absorb
energy
(
)
,
influencing
temperature
changes
in
the
surroundings
.
A
balloon
filled
with
air
does
not
rise
as
high
as
a
balloon
filled
with
helium
gas
,
telling
me
that
helium
gas
is
dense
than
air
.
A
mixture
of
iron
and
sulfur
can
be
separated
by
.
A
substance
is
a
single
kind
of
matter
that
has
a
specific
.
A
(
n
)
is
the
smallest
part
of
a
substance
.
A
(
n
)
is
the
smallest
unit
of
matter
that
has
the
properties
of
its
element
.
An
object
?
s
weight
is
1
/
6
on
the
moon
as
it
is
on
earth
.
On
the
moon
,
the
object
?
s
mass
.
Both
a
pool
of
water
and
a
piece
of
ice
are
the
same
,
so
they
have
the
same
.
Characteristics
of
matter
are
called
.
Compounds
are
formed
as
a
result
of
during
chemical
reactions
in
a
set
ratio
.
Glass
breaking
,
ice
melting
,
and
the
dissolution
of
sugar
in
water
are
all
properties
.
Iron
rusting
,
silver
tarnishing
,
fruit
ripening
,
and
combustion
are
all
properties
.
Substances
in
a
keep
their
own
properties
since
they
are
not
chemically
combined
.
The
of
an
object
is
a
measure
of
the
thermal
energy
(
motion
of
the
particles
)
of
a
substance
.
The
ability
of
iron
to
rust
is
a
(
n
)
property
.
The
amount
of
matter
in
an
object
is
a
measure
of
its
.
The
amount
of
space
an
object
takes
up
is
a
measure
of
its
.
The
chemical
for
tungsten
is
W
,
where
Au
stands
for
.
The
chemical
for
water
is
and
for
hydrogen
peroxide
is
H2O2
.
The
energy
stored
in
bonds
between
atoms
is
energy
,
a
form
of
energy
.
The
form
or
appearance
of
a
substance
is
altered
during
a
(
n
)
change
,
where
the
actual
chemical
composition
or
ratio
of
atoms
is
altered
during
a
(
n
)
change
.
The
Law
of
states
that
in
any
physical
or
chemical
change
,
matter
is
neither
created
or
destroyed
,
only
changed
from
one
form
to
another
.
The
mass
of
an
object
is
,
whereas
the
weight
of
the
same
object
depending
on
its
location
.
The
mass
per
unit
volume
of
an
object
is
a
measure
of
its
.
The
physical
property
that
makes
metal
pots
good
for
cooking
is
thermal
.
The
SI
unit
for
weight
is
.
The
simplest
type
of
substance
is
a
(
n
)
,
which
is
made
up
of
atoms
,
molecules
,
or
compounds
.
The
substances
in
a
mixture
are
evenly
distributed
and
you
cannot
see
the
parts
.
The
substances
in
a
mixture
can
usually
be
seen
and
are
easily
separated
.
When
the
atoms
in
elements
combine
to
form
compounds
,
their
change
.
air
,
gasoline
,
wood
,
and
ice
would
float
on
water
because
their
densities
are
than
that
of
.
aluminum
,
steel
,
silver
,
lead
,
mercury
,
and
gold
would
sink
in
water
because
their
densities
are
than
that
of
.
A
(
n
)
will
always
take
the
shape
and
volume
of
its
container
.
A
state
of
matter
with
a
definite
volume
,
but
no
definite
shape
is
a
(
n
)
.
A
(
n
)
has
a
definite
volume
and
a
definite
shape
.
The
of
a
gas
is
represented
by
the
formula
f
/
A
,
where
f
=
force
pushing
on
the
walls
of
a
container
and
A
=
area
of
the
walls
of
the
container
.
A
(
n
)
gas
has
neither
a
definite
nor
a
definite
.
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
.
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
gas
have
the
greatest
energy
.
Vaporization
is
the
reverse
process
of
.
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
.
evaporation
and
boiling
are
both
forms
of
.
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
.
created
the
first
periodic
table
by
arranging
elements
in
order
of
atomic
.
You
can
predict
an
element
?
s
based
on
its
on
the
periodic
table
.
Metals
are
,
,
and
can
carry
an
.
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
.
A
material
that
is
can
be
pulled
or
drawn
into
a
long
wire
.
In
an
,
the
number
of
and
are
equal
.
Elements
in
the
same
row
on
the
periodic
table
have
properties
that
change
in
a
.
have
properties
of
both
metals
and
nonmetals
.
Fluorine
,
chlorine
,
bromine
,
and
iodine
are
all
part
of
the
family
.
The
atomic
nuclei
of
unstable
release
fast
-
moving
particles
and
energy
in
a
process
called
.
Radioactive
called
tracers
can
be
used
to
detect
some
medical
problems
.
The
series
of
electron
orbits
in
model
resemble
planets
orbiting
the
Sun
or
the
layers
of
an
onion
.
The
horizontal
rows
on
the
periodic
table
are
known
as
or
.
Atoms
with
the
same
number
of
protons
and
different
numbers
of
neutrons
are
called
.
Each
element
is
given
a
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
.
Elements
that
easily
transmit
electricity
and
heat
display
the
property
known
as
.
The
spontaneous
emission
of
radiation
by
an
unstable
atomic
nucleus
was
named
radioactivity
by
.
The
chemical
reactivity
of
metals
tends
to
from
left
to
right
across
the
periodic
table
.
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