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Hydroxides for AQA A-level Chemistry

This page covers the following topics:

1. Sodium hydroxide reactions
2. Sodium hydroxide reactions

Dilute sodium hydroxide solution is used to test for some metal ions, which form insoluble metal hydroxides.

Sodium hydroxide reactions

Dilute sodium hydroxide solution is used to test for some metal ions, which form insoluble metal hydroxides.

Sodium hydroxide reactions

1

In ionic equations, what name is given to the ions that are not shown in the equation (i.e. ions that are not involved in the formation of the precipitate)?

spectator ions

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2

Write a balanced ionic equation for the formation of iron(III) hydroxide precipitate.

Feยณโบ + 3OHโป โ†’ Fe(OH)โ‚ƒ

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3

Write a balanced equation for the reaction of copper sulphate with sodium hydroxide.

CuSOโ‚„ + 2NaOH โ†’ Naโ‚‚SOโ‚„ + Cu(OH)โ‚‚

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