Reactions of Acids (AQA GCSE Chemistry Combined Science): Flashcards
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Practise the cards
15 cards from this deck
Product of salt preparation
Product of salt preparation
Pure, dry salt crystals
Acid + metal oxide product
Acid + metal oxide product
Salt plus water
Type of salt from sulfuric acid
Type of salt from sulfuric acid
Sulfates
Type of salt from hydrochloric acid
Type of salt from hydrochloric acid
Chlorides
Type of salt from nitric acid
Type of salt from nitric acid
Nitrates
Volume of dilute sulfuric acid used
Volume of dilute sulfuric acid used
Reason for heating the acid
Reason for heating the acid
Makes reaction faster and go to completion
Sign all acid has reacted
Sign all acid has reacted
Some black powder remains unreacted
Why add excess copper oxide
Why add excess copper oxide
Ensures all acid is used up completely
Purpose of filtering
Purpose of filtering
Remove excess copper oxide
Colour change during reaction
Colour change during reaction
Black copper oxide dissolves, solution turns blue
Colour of final crystals
Colour of final crystals
Blue
Copper oxide + sulfuric acid equation
Copper oxide + sulfuric acid equation
Appearance of filtered solution
Appearance of filtered solution
Clear blue solution
When to stop adding copper oxide
When to stop adding copper oxide
When some black powder remains unreacted