Daily Practice · GCSE Science

Daily Practice - GCSE Science

Biology, chemistry and physics recall, definition and calculation, drawn from every strand.

16th December 2021

5 questions · GCSE · 584 questions in this band

1
Electrolysis
Molten zinc chloride, ZnCl2, is electrolysed using inert electrodes. Write the half equation for the reaction at (a) the cathode, and (b) the anode.
2
Energy Changes
Give one everyday example of an endothermic process.
3
Exothermic and Endothermic Reactions
State the energy transfer that occurs during an endothermic reaction.
4
Bond Energies, Cells and Fuel Cells
State the two substances that react inside a hydrogen fuel cell.
5
Rate and Extent of Chemical Change
State what is meant by a catalyst.

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