Chemistry

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What are alkalis?
Alkalis are bases that dissolve in water.
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Which salt is made when calcium carbonate reacts with hydrochloric acid?
Calcium chloride is made when calcium carbonate reacts with hydrochloric acid.
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Lead chloride is insoluble. It can be made by mixing solutions of:
Lead Chloride can be made by mixing lead nitrate and sodium chloride.
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What is the symbol Equation for neutralisation?
The symbol equation for neutralisation is H+ (aq) + OH-(aq) → H2O (l)
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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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What happens when copper is purified by electrolysis?
When copper is purified by electrolysis the positive electrode is impure copper.
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What happens during electrolysis?
During electrolysis ions lose electrons at the positive electrode and are oxidised.
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What happens when electroplating a metal spoon with silver?
When electroplating a metal spoon with silver the silver should be the positive electrode.
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What is the correctly balanced half-equation for the production of chlorine gas?
2Cl- → Cl2 + 2e-
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What type of structure do diamond and graphite have?
Diamond and graphite have a giant molecular structure.
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Why might fullerenes be used in new drug delivery systems?
Fullerenes are hollow.
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In what physical state or states do ionic substances conduct electricity?
Ionic substances conduct electricity when in a liquid state or dissolved in water.
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Card 2

Front

Which salt is made when calcium carbonate reacts with hydrochloric acid?

Back

Calcium chloride is made when calcium carbonate reacts with hydrochloric acid.

Card 3

Front

Lead chloride is insoluble. It can be made by mixing solutions of:

Back

Preview of the front of card 3

Card 4

Front

What is the symbol Equation for neutralisation?

Back

Preview of the front of card 4

Card 5

Front

What happens during electrolysis?

Back

Preview of the front of card 5
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