Metals and Water
Metals and Water
Metals and Water
Look at the
pictures and
think about
how metals
react in water.
Are they all
the same?
Learning Outcomes
Example:
Potassium Hydroxide
Potassium + Water ___________ Hydroge
_____________ + _________________
n
Equation Practice
Potassium_____________
Potassium + Water ___________ Hydroxide Hydroge
+ _________________
n
Sodium Sodium Hydroxide
+ Water ___________ Hydroge
_____________ + _________________
n
Lithium + Water ___________ _____________ + _________________
Lithium Hydroxide Hydroge
n
Calcium + Water ___________ _____________
Calcium Hydroxide + _________________
Hydroge
n
Write the reaction for Zinc reacting with water.
Extension: Can you write the reaction for Zinc and Water as a
symbol equation?
https://
www.youtube.co
m
/watch?v
=0VonvhSzhR4
Let’s See
Watch as your teacher demonstrates the reaction of the alkali
metals and water. Listen carefully to what they say so you can
answer the questions below afterwards.
aluminium
Copper Potassium Gold Magnesium
(carbon)
zinc
iron Ext: Write a pneumonic to help you
lead remember it!
(hydrogen)
copper Policeman Steve Called Maggie A Crazy
silver Zany Idiot, Lends His Cousin Six Gold
gold Plates
platinum
Carbon and Hydrogen are non metals
and are often included as a comparison
Uses of the Reactivity Series
Think back to last lesson and discuss the following questions with your partner.
2. If the boat is made out of iron, suggest a metal that could be used
for sacrificial protection and why.
Zinc is above iron in the reactivity series.
3. Name a metal that you wouldn’t use for sacrificial protection and why?
Gold is less reactive than iron so it would not react instead.
Potassium would react immediately with the water and it would be
4. Research the difference between galvanising and sacrificial
dangerous.
protection.
Galvanising is specifically coating iron with zinc, sacrificial protection is like
the picture above, pieces of the more reactive metal.
Plenary: Reactivity series play
your cards right. Higher or lower?
K Al Au Mg Na
Ag Li Zn Fe Ca
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Worksheets
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