C3g Transition Elements Answer

C3g Transition Elements Answer Paper

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Item C3g: Transition Elements
1.I
ndicat
e t
he
posit
ion
of
the
tr
ansi
ti
on
met
als
in
the
per
iodi
c t
abl
e shown
bel
ow,
by
ei
ther
col
our
ing
or
shading:
2.Al
l
tr
ansi
ti
on
element
s ar
e met
als
and
have
typi
cal
met
all
i
c pr
oper
ti
es.
Thi
s
me ans
the t
ransit
i
o n
me tal
s ar
e
hard,
shi
ny and st
rong .
They can
be ma de t
o t
h i
n
foil
s
o r
w i
res.
3.S t
a t
e t
h e name or
symb ol
of
the t
ransi
ti
on me t
als
(i
)
s i
lver
S (ii
)
ma nga nese Mn
4. Wh i
ch of
these el
eme nts
are t
ransi
ti
on me t
als:
Cr,
Na ,
He, Fe ,
C,
C u,
C l
5.C omp ou nds
of
transi
ti
o n
eleme nt
s ar
e of
ten col
oured:
c opp er
comp ounds ar
e
blue
i r
on (
II
)
co mpo unds
are l
ight
gr
een
i r
on (
II
I)
comp ounds are
orange/br
ow n
6.C atal
ys t
s are
substances t
ha t
wi
ll
speed
up
chemical react
ion s
7.T r
a nsi
tion
eleme nt
s and t
he i
r
comp ounds ar
e oft
en used
as catalyst
s:
i r
on
in
the Haber pr
ocess
n ickel
i
n t
h e
ma nufact
u r
e of
margari
ne
8.T herma l
decomp osit
ion
is
a react
ion,
i
n which
a substance i
s
b r
oken
d own i
nto
a t
l
east t
w o ot
her subst
an ces
by t
he act
ion
o f
heat
.
9.A l
l
carb onates
w hen st
rongl
y heated,
wil
l
decomp ose int
o t
w o
new
su bst
an ces t
he me t
al
oxide and
carbon di
oxide.
For
e xamp l
e cal
cium
ca r
bon ate (
chalk
),
w hen
strongl
y heat
ed produces calci
um oxide
an d car
bo n
d i
oxide.
T he
w ord equati
ons show i
ng t
his:
C al
cium car
bo nat
e cal
cium oxi
de+ c arbon
dioxi
de
10.Tr
a nsi
tion
me tal
carbonat
s react
i
n a
very
simil
ar way. Describe t
he
therma l
d ecomp osit
ion
of
transi
ti
on
me t
al
carbonates:
FeC O3
,C uCO 3,
Mn CO 3 and
Z nCO 3.
Wr i
te
w or
d
equa t
ions
to
show
w hat
happens w hen t
h ese car
b onates
a r
e
strongly
h eat
ed.

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Carbon
dioxi
de
test
: The
carbon
dioxi
de t
hat i
s pr
oduced by
heat
ing
a
carbonate can
be t
ested
to
confi
rm that
i
t
is
indeed,
car
bon di
oxi
de.
If
t
his
gas
is
bu bbl
ed t
hrough
clear
l
imewater
it
becomes mil
ky whi
te.
12.Wh en
copper
carbonat
e i
s heat
ed i
n t
his
way i
t
gives
car
bon di
oxide
and
copper
o xi
de.…read more

Comments

lisa linsdell

Answers to separate download questions. OCR foundation level. Good revision aid.

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