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Neutralisation

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by

David Gabb

on 7 February 2018

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Transcript of Neutralisation

Rainbow Fizz
Explain what you see
Hydrochloric acid
Sulfuric acid
Nitric acid
Indigestion
we have hydrochloric acid in our stomachs
Image by Tom Mooring
Neutralisation
Lesson Aim
I can identify common acids and alkalis
Acids
What are the 5 most important facts from this topic so far?
I can name the salt that is produced in neutralisation reactions
I can explain how indigestion is cured
I can recall the formula of common acids and alkalis
Alkalis
Metal oxide
Metal hydroxide
Metal carbonate
Metal
Acid or alkali?
Hydrochloric acid
Sulfuric acid
Nitric acid
Sodium
Potassium hydroxide
Calcium carbonate
Aluminium
Iron oxide
Copper hydroxide
Titanium
Naming salts
Hydro
chloric
acid makes
chloride
salts

Sulf
uric acid makes
sulf
ate salts

Nitr
ic acid makes
nitr
ate salts
Equations
Acid
+
Alkali
Sa
lt
+
Water
The name of the salt comes from the metal in the alkali followed by the part of the acid
ACID
+
ALKALI

SALT
+
WATER
Hydro
chloric
acid
+
Sodium

hydroxide
Sodium

chloride
+
Water
Hydro
chloric
acid
+
Potassium

hydroxide
Hydro
chloric
acid
+
Copper

hydroxide
?
?
+
Hydro
chloric
acid
Iron

hydroxide
+
?
?
+
ACID
+
ALKALI

SALT
+
WATER
Sulphuric
acid
+
Sodium

hydroxide
Sodium

sulphate
+
Water
+
Lithium

hydroxide
Sulphuric
acid
Sulphuric
acid
Sulphuric
acid
+
+
Caesium

hydroxide
Titanium

hydroxide
?
?
+
?
?
+
?
?
+
?
?
+
Copy this into your books
Copy this into your books
Equations
Depending on the alkali we make different things
Acid + metal oxide/hydroxide
Salt + water
Acid + metal
Salt + hydrogen
Acid + carbonate
Salt + water + carbon dioxide
Complete the worksheet in pairs
take it in turns to do questions
Uses of neutralisation
Farming
we can neutralise soil with calcium carbonate
Factories
we can neutralise acidic fumes with calcium carbonate
Write the following as word equations:
When calcium carbonate is heated it breaks apart to form calcium oxide and carbon dioxide.

When calcium oxide is reacted with water it gives out a lot of heat and makes calcium hydroxide.

Calcium hydroxide reacts with carbon dioxide to form calcium carbonate which is a precipitate. This is the test for carbon dioxide.
Full transcript