Identifying negative ions - Carbonates test (Edexcel GCSE Chemistry Combined Science): Flashcards
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Practise the cards
12 cards from this deck
What ion does the carbonate test identify?
What ion does the carbonate test identify?
Carbonate ions ()
Gas produced when carbonates react with acid
Gas produced when carbonates react with acid
Carbon dioxide
Test used to detect carbon dioxide
Test used to detect carbon dioxide
Limewater test
First step of carbonate test
First step of carbonate test
Add dilute hydrochloric acid
Observation if carbonate ions present
Observation if carbonate ions present
Fizzing as is produced
How to confirm in carbonate test
How to confirm in carbonate test
Bubble gas through limewater
Result when bubbled through limewater
Result when bubbled through limewater
Limewater turns cloudy
What does cloudy limewater confirm?
What does cloudy limewater confirm?
Presence of carbonate
Products of reaction
Products of reaction
Acid used in carbonate test
Acid used in carbonate test
Hydrochloric acid (HCl)
Why use minimal limewater in test
Why use minimal limewater in test
More sensitive and accurate