Carbonates (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes

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Carbonates
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What is the formula of carbonate ions?

\ceCO32−\ce{CO3^2-}

How can carbonate ions be identified?

By their reaction with dilute acids

What gas is produced when carbonate ions react with dilute hydrochloric acid?

Carbon dioxide

What is the first step in testing for carbonate ions?

Add dilute hydrochloric acid

What should the gas produced be bubbled through to test for carbon dioxide?

Lime water

What is lime water?

\ceCa(OH)2\ce{Ca(OH)2}

What happens to lime water if carbon dioxide is present?

It turns cloudy

What does cloudy lime water indicate about the original solution?

Carbonate ions were present

In the reaction \ceCO32−+2HCl−>H2O+CO2+2Cl−\ce{CO3^2- + 2HCl->H2O+CO2+2Cl-}, which gas is formed?

\ceCO2\ce{CO2}

Which acid is used to test for carbonate ions?

Dilute hydrochloric acid

Explore OCR GCSE Chemistry A (Gateway Science Suite) Revision Notes by Topics

Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

Explore OCR GCSE Chemistry A (Gateway Science Suite) Model Answers by Topics

Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

Explore OCR GCSE Chemistry A (Gateway Science Suite) Flashcards by Topics

Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

Explore OCR GCSE Chemistry A (Gateway Science Suite) Exam Questions by Topics

Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

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