Chemistry

Created by: Molly Chandler
Created on: 31-12-12 14:31

Which statement is correct? - Metals form negative ions that move to the negative electrode - Metals form positive ions that move to the negative electrode - Metals form positive ions that move to the positive electrode

Metals form positive ions that move to the negative electrode.

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Which statement about the electrolysis of sodium chloride solution is correct? - Hydrogen forms at the positive electrode - Sodium forms at the positive electrode - Chlorine forms at the positive electrode

Chlorine forms at the positive electrode during the electrolysis of sodium chloride solution.

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What happens during electrolysis?

During electrolysis gases may be given off or metals deposited at the electrodes.

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When copper is purified by electrolysis:

When copper is purified by electrolysis the positive electrode is impure copper.

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The products formed during the electrolysis of sulfuric acid are:

Hydrogen is formed at the negative electrode and oxygen at the positive electrode.

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What happens at the positive electrode during electrolysis?

During electrolysis ions lose electrons at the positive electrode and are oxidised.

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The correctly balanced half-equation for the production of chlorine gas is:

The correctly balanced half-equation for the production of chlorine gas is 2Cl- → Cl2 + 2e-

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Other cards in this set

Card 2

Front

Back

Chlorine forms at the positive electrode during the electrolysis of sodium chloride solution.

Card 3

Front

What happens during electrolysis?

Back

Card 4

Front

When copper is purified by electrolysis:

Back

Card 5

Front

The products formed during the electrolysis of sulfuric acid are:

Back

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