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Chemistry : Unit 1 - Solids, Liquids, and Gases
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Chemistry : Unit 1 - 1.1.2 State Changes
Chemistry : Unit 1 - Solids, Liquids, and Gases
17 cards
Cards (20)
Solids have a
fixed volume
and
shape
and they have a
high density.
The atoms
vibrate
in
position
but
can’t change location
The particles are
packed
very
closely together in
a
fixed
and
regular
pattern
Liquids also
have a
fixed volume
but adopt the
shape
of the
container.
They are generally
less dense
than
solids
(an exception is
water
),but much
denser
than
gases.
The
particles move
and
slide past
each other which is why
liquids
adopt the
shape
of the
container
and also why they are able to
flow freely
Gases
do not have a fixed volume
, and, like
liquids
,take up the
shape
of the
container.
Gases have a very
low density.
Since there is a lot of
space
between the
particles
,gases can be
compressed
into a much
smaller volume.
The particles are
far apart
and move
randomly
and
quickly
(around
500
m/s) in all directions.
They
collide
with each other and with the
sides
of the container(this is how
pressure
is created inside a
can
of
gas
).
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