Metal Hydroxides (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards

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Metal Hydroxides
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Reagent used to test for metal ions

Sodium hydroxide (NaOH)

What forms when metal ions react with NaOH

Metal hydroxide precipitates

Solubility of metal hydroxides

Insoluble

Colour of Ca2+Ca^{2+} precipitate with NaOH

White

Colour of Mg2+Mg^{2+} precipitate with NaOH

White

Colour of Al3+Al^{3+} precipitate with NaOH

White

Behaviour of Al(OH)3Al(OH)_3 in excess NaOH

Dissolves to form colourless solution

Colour of Cu2+Cu^{2+} precipitate with NaOH

Blue

Colour of Fe2+Fe^{2+} precipitate with NaOH

Green

Colour of Fe3+Fe^{3+} precipitate with NaOH

Brown

Ion from NaOH that reacts with metal ions

Hydroxide ions (OH−OH^-)

How metal ions are identified

By the colour of the precipitate formed

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) Quizzes 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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