IGCSE Edexcel Chemistry test with complete solution

IGCSE
Edexcel
Chemistry
Formula
of
nitric
acid
HNO3
Name
of
HCl
Hydrochloric
acid
Formula
of
sulfuric
acid
H2SO4
Test
for
hydrogen
gas
Lighted
splint.
Squeaky
pop.
Test
for
oxygen
gas
Relights
a
glowing
splint
Test
for
carbon
dioxide
Turns
limewater
cloudy Test
for
ammonia
gas
Damp
red
litmus
paper
turns
blue
Test
for
chlorine
gas
Bleaches
damp
litmus
paper
Bleaches
damp
litmus
paper
Chlorine
gas
A
gas
that
turns
damp
red
litmus
paper
turns
blue
Ammonia
Turns
limewater
cloudy
Carbon
Dioxide Relights
a
glowing
splint
Oxygen
Flammable
gas
that
gives
a
squeaky
pop.
Hydrogen
Name
of
group
1
elements
Alkali
metals
Group
1
elements
get
more
reactive
...
the
group
down
Products
of
lithium
reacting
with
water
Lithium
hydroxide
and
hydrogen
Products
of
sodium
reacting
with
water
Sodium
hydroxide
and
hydrogen
Products
of
potassium
reacting
with
water
Potassium
hydroxide
and
hydrogen
Order
the
metals
in
increasing
reactivity:
Potassium,
Lithium,
Sodium
Lithium,
Sodium,
Potassium
Observations
of
lithium
reacting
with
water
-fizzing -lithium
disappears
-floats
Observations
of
sodium
reacting
with
water
-fizzing
-melts
into
a
ball
-sodium
disappears
-floats
Observations
of
potassium
reacting
with
water
-fizzing
-lilac
flame
-potassium
disappears
-floats
Observations
of
reacting
rubidium
with
water
-explodes
How
many
electrons
are
in
the
outer
shell
of
group
1
metals
1
Colour
of
Fluorine
gas
Pale
yellow
Colour
of
Chlorine
gas
Green