Identifying negative ions - Carbonates test (Edexcel GCSE Chemistry): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What ion does the carbonate test identify?
What ion does the carbonate test identify?
What gas is produced when carbonates react with acids?
What gas is produced when carbonates react with acids?
Carbon dioxide
Which acid is added to test for carbonate ions?
Which acid is added to test for carbonate ions?
Dilute hydrochloric acid
What observation indicates carbonate ions are present?
What observation indicates carbonate ions are present?
Fizzing occurs
What substance is used to test for carbon dioxide?
What substance is used to test for carbon dioxide?
Limewater
What happens to limewater when is present?
What happens to limewater when is present?
Turns cloudy
What does cloudy limewater confirm about the substance?
What does cloudy limewater confirm about the substance?
It is a carbonate
Why should you avoid sucking up acid into the pipette?
Why should you avoid sucking up acid into the pipette?
It neutralises limewater and ruins the test
Why should minimal limewater be used in the test?
Why should minimal limewater be used in the test?
More sensitive and accurate test
What are the products when reacts with ?
What are the products when reacts with ?
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