Displacement Reactions 2.ppt a Summary of common methods for discovering what is the most reactive element.

Nice summary of displacement reactions

1. Displacement Reactions Displacement Reactions
Starter Starter
Name two reactive metals and two Name two reactive metals and two
unreactive( native) metalsunreactive( native) metals

2. Displacement reactions Displacement reactions
learning objectiveslearning objectives
To predict if a given pair of substances will To predict if a given pair of substances will
undergo displacement.undergo displacement.
To use the reactivity series to explain To use the reactivity series to explain
displacement reactions.displacement reactions.
To predict which combinations of metals and To predict which combinations of metals and
metal compounds will lead to metal compounds will lead to
displacement reactions.displacement reactions.

3. Reactivity SeriesReactivity Series
A metal can be reduced by carbon if it
is less reactive than carbon and so
appears below carbon in the reactivity
series.
Using the reactivity series, can you name
a metal that cannot be extracted from its
ore using carbon?
If a metal is more reactive than carbon,
other chemical reactions and processes
must be used in its extraction.
Certain metals, such as iron, can be
only be reduced using carbon if they
are heated to very high temperatures.
potassium
sodium
calcium
magnesium
aluminium
zinc
iron
copper
gold
lead
silver
(carbon)
(hydrogen)
platinum

5. CuSO
4
Mg
Let me think
about it
Lets get
together

6. Zn
Mg
SO
4

7. Zn
SO
4Fe

8. Pb
Cu
No way
Granny!!
SO
4

9. Zn
CuSO
4
You say
you need
me!
How can you
leave me?

10. PbSO
4

11. Disco DisplacementDisco Displacement
Mg
magnesium
+CuSO
4
Copper
sulphate
= +
Mg
magnesium
+ZnSO
4 = +
Zn
zinc
+FeSO
4
= +
Cu
copper
+PbSO
4
= +
Zn
zinc
+CuSO
4
= +
Write the symbol and the word equation

12. Disco DisplacementDisco Displacement
Mg
magnesium
+CuSO
4
Copper
sulphate
=MgSO
4
magnesium
sulphate
+Cu
copper
Mg
magnesium
+ZnSO
4
Zinc sulphate
=MgSO
4
magnesium
sulphate
+Zn
zinc
Zn
zinc
+FeSO
4
iron sulphate
=ZnSO
4
zinc
sulphate
+Fe
iron
Cu
copper
+PbSO
4
lead sulphate
=No
reaction
Zn
zinc
+CuSO
4
copper sulphate
=ZnSO
4
zinc sulphate
+Cu
copper

13. Will it react: Yes or no?.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

14. Table of results Table of results
magnesiummagnesium
sulphatesulphate
zinczinc
sulphatesulphate
ironiron
sulphatesulphate
coppercopper
sulphatesulphate
magnesiummagnesium
zinczinc
ironiron
coppercopper

15. In your books, answer the following In your books, answer the following
questions.questions.
1.1.Which metal reacted with the most metal sulphate solutions? This Which metal reacted with the most metal sulphate solutions? This
is the most reactive metal.is the most reactive metal.
2.2.Which metal reacted with least metal sulphate solutions? This is Which metal reacted with least metal sulphate solutions? This is
the least reactive metal.the least reactive metal.
3.3.Put the metals in order from the most reactive to the least Put the metals in order from the most reactive to the least
reactive. This is a reactivity series. Explain why you put the reactive. This is a reactivity series. Explain why you put the
metals in this order.metals in this order.
4.4.Iron and copper can both be extracted from their ores by heating Iron and copper can both be extracted from their ores by heating
the metal compound present in the rock with carbon. Which metal the metal compound present in the rock with carbon. Which metal
do you think is easier to extract this way? Explain your answer.do you think is easier to extract this way? Explain your answer.
5.5.Magnesium cannot be extracted from its ore by heating it with Magnesium cannot be extracted from its ore by heating it with
carbon. Can you suggest a reason for this?carbon. Can you suggest a reason for this?
6.6.Write word equations for each of the reactions seen. For Write word equations for each of the reactions seen. For
example, for magnesium dipped in copper sulphate solution the example, for magnesium dipped in copper sulphate solution the
equation is:equation is:
  magnesium copper sulfate magnesium sulfate copper