Daily Practice

GCSE Science

19th June 1984

5 questions · GCSE · 584 questions in this band

1
Electrolysis
Concentrated sodium chloride solution (brine) is electrolysed using inert electrodes. State the products formed at the cathode and at the anode.
2
Energy Changes
State whether the combustion of methane is exothermic or endothermic.
3
Exothermic and Endothermic Reactions
State what is meant by the activation energy of a reaction.
4
Bond Energies, Cells and Fuel Cells
State whether forming a new chemical bond requires energy or releases energy.
5
Rate and Extent of Chemical Change
State the four factors that can increase the rate of a chemical reaction.

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