A
thistle
funnel
and
a
delivery
tube
are
held
____________________
the
____________________
of
a
flask
by
means
of
a
bung
.
Manganese
oxide
powder
is
in
the
____________________
of
the
flask
.
Concentrated
hydrochloric
acid
is
poured
____________________
the
thistle
funnel
until
the
end
of
the
thistle
-
funnel
is
just
____________________
the
surface
of
the
liquid
.
The
delivery
tube
passes
____________________
a
trough
of
brine
(
salt
and
water
)
.
A
gas
-
jar
full
of
brine
is
____________________
on
____________________
of
a
shelf
,
immediately
____________________
the
end
of
the
delivery
tube
.
The
flask
is
held
____________________
a
bunsen
burner
flame
and
the
contents
are
heated
.
A
reaction
takes
place
in
the
flask
and
a
gas
is
produced
.
The
gas
passes
____________________
the
delivery
tube
,
____________________
the
jar
of
brine
.
Bubbles
of
gas
rise
____________________
____________________
brine
and
the
level
of
brine
in
the
gas
-
jar
goes
____________________
.
The
level
of
the
brine
____________________
until
the
jar
is
completely
full
of
the
gas
.
