Chapter Review:
- The passage of an electric currernt through a conducting liquid causes chemical reaction. The resulting effects are called chemical effects of currents.
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Which allow electric current to pass through them, are good conductors of electricity.
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Which do not allow electric current to pass through them easily, are poor conductors of electricity.
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Most liquids that conduct electricity are solutions of acids, bases and salts.
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Two wires are called leads.
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Distilled water is free of salts and is a poor conductor.
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When salt is dissolved in distilled water, we obtain salt solution. This is a conductor of electricity.
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Oxygen bubbles formed on the electrode connected to the positive terminal of the battery and hydrogen bubbles formed on the other electrode.
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The process of depositing a layer of any desired metal on another material by means of electricity is called electroplating.
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Chromium has a shiny appearance. It does not corrode. It resists scratches.
