When a less reactive metal gets replaced by a more reactive one
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Name 3 ways you can distinguish the pH of a substance
Litmus paper, pH probe, Universal Indicator
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How do you make salt?
Add dilute hydrochloric acid to a beaker, add powdered zinc carbonate to some acid, continue until it is in excess, filter the mixture, evaporate the mixture over a Bunsen burner
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What is a salt?
A salt is any compound formed by the neutralisation of an acid by a base
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What is electrolysis?
Electrolysis is the separation of substances
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How does electrolysis work?
Electrolysis works by breaking down electrolytes. The negatively charged ions called anions are attracted to the positively charged anode. The positively charged ions called cations are attracted to the negatively charged cathodes.
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How does extraction by carbon work?
Extraction by carbon works by using carbon in displacement. If the metal is less reactive than carbon, carbon will displace it and the metal will be separated.
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What is an ore?
A metal formed with another element to make a compound
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