Page 128 - Knowledge Organiser Yr8 24-25

Knowledge Base: Science 8.2 Acids and Alkalis Year 8
4. What is a neutralisation reaction?
4.1
What are the products of a neutralisation reaction between an acid and an alkali?
A metal salt and water.
5. Naming Salts
5.4
What is the name of the salt made from potassium hydroxide and hydrochloric acid?
Potassium chloride.
5.5
What is the name of the salt made from calcium hydroxide and nitric acid?
Calcium nitrate.
5.6
What is the name of the salt made from copper hydroxide and sulfuric acid?
Copper sulphate.
5.7
What acid and what alkali would you need to react together to get sodium chloride?
Sodium Hydroxide and Hydrochloric acid.
5.8
Write the word equation for the neutralisation reaction between hydrochloric acid and sodium hydroxide.
Hydrochloric Acid + Sodium Hydroxide → Sodium Chloride + Water
5.9
Write the word equation for neutralisation reaction between sulfuric acid and calcium hydroxide.
Sulfuric Acid + Calcium hydroxide → Calcium Sulphate + Water
Below is a symbol equation for a neutralisation reaction.
Colour the atoms in the reactants either blue or yellow to show how the atoms rearrange to form the products.
4.2 Write a word equation for a neutralisation reaction. Acid + Alkali → Salt + Water.
4.3
Describe how to make salt crystals from a neutralisation reaction.
5. Naming Salts
5.1
What are the rules for naming salts?
There are two parts to a salt name:
1. The first word is a metal, taken from
the alkali.
2. The second word ends in ~ide or ~ate,
taken from the acid.
5.2
What ending will salts made from the following acids have:
a) Hydrochloric acid
b) Sulfuric acid
c) Nitric acid
a) A salt made from hydrochloric acid will end in chloride.
b) A salt made from nitric acid will end in nitrate.
c) A salt made from sulfuric acid will end in sulphate.
5.3
What is the name of the salt made from potassium hydroxide and hydrochloric acid?
Potassium chloride.
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