Fill in the Blanks
Intro to Chemistry: Chapters 1-5Online version
Dive in to the interesting, fascinating genes of how elements came to be and learn about the Periodic Table.
A
substance
is
a
single
kind
of
matter
that
has
a
specific
.
A
(
n
)
is
the
smallest
part
of
a
substance
.
Another
term
for
the
ability
to
burn
is
at
temperatures
below
37
.
8
?
.
Characteristics
of
matter
are
called
.
Compounds
are
formed
as
a
result
of
chemical
during
chemical
reactions
in
a
set
ratio
.
Four
measurable
physical
properties
of
matter
are
,
,
,
and
.
Of
these
,
and
are
derived
measurements
and
must
be
calculated
.
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
.
One
liter
is
equal
to
milliliters
.
One
milliliter
is
equal
to
cubic
centimeters
.
Salad
dressing
is
an
example
of
a
mixture
.
Salt
water
is
an
example
of
a
mixture
.
Solid
,
liquid
,
gas
,
plasma
,
quantum
foam
are
the
five
(
states
)
of
matter
.
Substances
in
a
keep
their
own
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
of
iron
to
rust
is
a
(
n
)
property
.
The
chemical
for
tungsten
is
W
,
where
Au
stands
for
gold
.
The
chemical
water
is
H2O
and
for
hydrogen
peroxide
is
H2O2
.
The
energy
stored
in
bonds
between
atoms
is
chemical
energy
,
a
form
of
energy
.
The
form
or
appearance
of
a
substance
is
altered
during
a
(
n
)
change
.
The
actual
chemical
composition
or
ratio
of
atoms
is
altered
during
a
(
n
)
change
.
The
Law
of
Conservation
of
states
that
in
any
physical
or
chemical
change
,
matter
is
neither
created
or
destroyed
,
only
changed
from
one
form
to
another
.
The
of
an
object
is
constant
.
The
of
an
object
varies
depending
on
its
location
.
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
mass
per
unit
volume
of
an
object
is
a
measure
of
its
.
The
property
that
makes
metal
pots
good
for
cooking
is
energy
.
The
SI
unit
for
is
/
,
but
the
common
unit
is
g
/
mL
.
The
SI
unit
for
is
,
but
the
common
unit
is
g
.
The
SI
unit
for
is
,
but
the
common
unit
is
cm3
.
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
.
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
.
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
.
Particles
of
a
have
the
greatest
energy
.
Glass
is
an
example
of
a
(
n
)
solid
.
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
.
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
.
The
most
reactive
metals
on
the
periodic
table
are
found
in
group
1
,
period
7
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
.
orbit
the
nucleus
of
an
atom
.
have
properties
of
both
metals
and
nonmetals
.
Electrons
are
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
.
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
problems
.
A
piece
of
paper
will
provide
protection
from
radiation
.
The
modern
periodic
table
is
organized
according
to
.
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
.
A
column
of
elements
on
the
periodic
table
is
called
a
or
a
because
they
have
similar
characteristics
.
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
.
The
chemical
reactivity
of
metals
tends
to
from
left
to
right
across
the
periodic
table
.
Most
metals
are
in
the
state
or
phase
at
room
temperature
.
The
is
the
very
small
center
of
an
atom
.
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
.
Two
ways
a
proton
and
a
neutron
are
similar
are
they
have
the
same
and
are
both
located
in
the
nucleus
.
Atoms
are
because
they
have
equal
numbers
of
protons
and
electrons
.
The
mass
of
a
(
n
)
is
so
small
that
it
doesn
?
t
really
change
the
mass
of
an
atom
.
A
(
n
)
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
.
is
always
released
during
any
type
of
radioactive
decay
.
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
.
Aluminum
foil
is
an
example
of
a
metal
that
is
.
Electrons
involved
in
bonding
between
atoms
are
electrons
located
from
the
nucleus
in
the
and
sublevels
that
have
a
charge
.
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
)
.
Ions
that
are
made
of
more
than
one
type
of
atom
are
examples
of
ions
.
An
ionic
bond
is
the
attraction
between
charged
ions
.
compounds
are
hard
,
brittle
crystals
.
Solid
are
good
conductors
of
thermal
energy
and
electrical
current
.
Most
molecular
compounds
have
melting
points
and
boiling
points
.
Iron
replaces
copper
in
copper
(
II
)
chloride
is
a
change
.
Sodium
chloride
dissolves
in
water
is
a
change
.
2
Colorless
liquids
form
a
yellow
precipitate
is
a
change
.
Mirror
broken
is
a
change
.
Nail
corrodes
due
to
humidity
is
a
change
.
Copper
wire
is
melted
is
a
change
.
Nitrogen
dioxide
decomposes
into
N2
gas
and
O2
gas
is
a
change
.
Hair
growing
on
a
rabbit
is
a
change
.
Cold
pack
reacts
and
becomes
colder
is
a
change
.
The
principle
that
states
that
matter
is
neither
nor
during
a
chemical
reaction
is
called
the
Law
of
Mass
.
A
number
written
in
front
of
a
chemical
formula
to
show
the
actual
number
of
atoms
or
molecules
is
a
(
n
)
.
The
production
of
carbon
dioxide
gas
during
the
burning
of
a
fuel
is
an
example
of
a
(
n
)
reaction
.
In
a
chemical
equation
,
the
arrow
is
read
as
.
The
formation
of
a
yellow
in
the
reaction
between
silver
nitrate
and
potassium
iodide
showed
that
a
chemical
reaction
had
taken
place
.
Increasing
the
surface
area
of
the
reactants
will
the
rate
of
the
reaction
.
The
amount
of
a
substance
in
a
given
volume
is
the
of
the
substance
.
Adding
a
to
a
reaction
will
decrease
the
activation
energy
of
the
reaction
.
Adding
an
inhibitor
to
a
reaction
will
the
activation
energy
of
the
reaction
.
List
the
elements
in
the
group
containing
the
least
reactive
nonmetals
from
largest
radius
to
smallest
radius
.
Use
their
symbols
with
a
comma
and
space
in
between
each
element
.
,
,
,
,
,
,
In
an
exothermic
reaction
,
the
environment
becomes
.
In
an
endothermic
reaction
,
the
environment
becomes
.
When
this
equation
is
balanced
:
1
Zn
+
2
HCl
?
1
ZnCl2
+
1
H2
,
this
is
a
reaction
.
When
this
equation
is
balanced
:
1
Mg
(
OH
)
2
+
1
H2
(
SO4
)
?
1
Mg
(
SO4
)
+
2
H
(
OH
)
,
this
is
a
reaction
.
When
this
equation
is
balanced
:
2
C10H22
+
31
O2
?
20
CO2
+
22
H2O
,
this
is
a
reaction
.
When
this
equation
is
balanced
:
2
C10H22
+
31
O2
?
20
CO2
+
22
H2O
,
this
is
a
reaction
.
When
this
equation
is
balanced
:
2
Na3
(
PO4
)
+
3
CaCl2
?
1
Ca3
(
PO4
)
2
+
6
NaCl
,
this
is
a
reaction
.
When
this
equation
is
balanced
:
2
(
NH4
)
(
NO3
)
?
2
N2
+
1
O2
+
4
H2O
,
this
is
a
reaction
.
|
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