Cu SO4

Mg

Let me think about it

Lets get together

Zn

Mg

SO4

Zn

SO4Fe

Pb

Cu

No wayGranny!!

SO4

Zn

CuSO4

You say you

need me!

How can you leave

me?

PbSO4

Disco Displacement

Mgmagnesium

+ CuSO4

Copper sulphate

= +

Mgmagnesium

+ ZnSO4 = +

Zn

zinc

+ FeSO4 = +

Cu

copper

+ PbSO4 = +

Zn

zinc

+ CuSO4 = +

Write the symbol and the word equation

Disco Displacement Mgmagnesium

+ CuSO4

Copper sulphate

= MgSO4

magnesium sulphate

+ Cu copper

Mgmagnesium

+ ZnSO4

Zinc sulphate

= MgSO4

magnesium sulphate

+ Zn

zinc

Zn

zinc

+ FeSO4

iron sulphate

= ZnSO4

zinc sulphate

+ Fe

iron

Cu

copper

+ PbSO4

lead sulphate

= No reaction

Zn

zinc

+ CuSO4

copper sulphate

= ZnSO4

zinc sulphate

+ Cucopper

Magnesium

copper+magnesium sulphate

copper sulphate

+magnesium

Mg + __SO4 ___SO4 + Cu

zinc+magnesium sulphate

zinc sulphate+magnesium

___ + ZnSO4 MgSO4 + ___

iron+magnesium sulphate

iron sulphate+magnesium

____ + __________ MgSO4 + Fe

Magnesium

copper+magnesium sulphate

copper sulphate

+magnesium

Mg + CuSO4 MgSO4 + Cu

zinc+magnesium sulphate

zinc sulphate+magnesium

Mg + ZnSO4 MgSO4 + Zn

iron+magnesium sulphate

iron sulphate+magnesium

Mg + FeSO4 MgSO4 + Fe

Zinc

magnesium sulphate

+Zinc

Zn + ____SO4 - -

_____+zinc sulphateiron sulphate+Zinc

_____ + __________ _________ + Fe

copper+_________

__________copper

sulphate+Zinc

_____ + _________ __________ + ___________

Zinc

No reactionmagnesium sulphate

+Zinc

Zn + MgSO4 - -

iron+zinc sulphateiron sulphate+Zinc

Zn + FeSO4 ZnSO4 + Fe

copper+zinc sulphatecopper sulphate

+Zinc

Zn + CuSO4 ZnSO4 + Cu

Thermit reaction

Aluminium + iron oxide = aluminium oxide + iron

Al + FeO = AlO + Fe

Displacement of oxides

• A more reactive metal can displace a less reactive one from a solution of one of its salts.

• Similar reactions take place with solid reactants such as the oxides. E.g.

iron+aluminium oxide

iron oxide+aluminium

• The more reactive aluminium wins the oxygen from the less reactive iron. This reaction gets so hot that the iron melts!

No reactionzinc oxide+iron

Fe + ZnO - -

copper+iron oxidecopper oxide

+iron

2Fe + 3CuO Fe2O3 + 3Cu

IronIron

• Iron is in the middle of the three in activity

copper+zinc oxidecopper oxide

+zinc

Zn + CuO ZnO Cu

iron+zinc oxideiron oxide+zinc

3Zn + 2Fe2O3 3ZnO + 2Fe

ZincZinc

• Zinc is the most reactive of the three metals.

No reactionzinc oxide+copper

Cu + ZnO - -

No reactioniron oxide+copper

Cu + Fe2O3 - -

CopperCopper

• Copper is low in the activity series and will not displace either of these metals

• Will it react: Yes or no?.

Potassium

Sodium

Calcium

Magnesium

Aluminium

Zinc

Iron

Lead

Copper

Silver

Gold

Reactants Reaction?

iron oxide magnesium

copper sulphate

zinc

potassium hydrochloric acid

gold iron chloride

calcium sodium chloride

calcium oxygen

Yes

Yes

Yes!!

No

No

Yes

Activity

CuSO4

ZnSO4

ZnSO4

ZnSO4

FeSO4

FeSO4

PbSO4

MgSO4

MgSO4

No reaction

Mg

Mg

Zn

Zn

Zn

Cu

Cu

Fe

Fe

+

+

+

+

+

+

+

+

+

=

=

=

=

=