Daily Practice · GCSE Science

Daily Practice - GCSE Science

21st September 1996

5 questions · GCSE · 584 questions in this band

1
Reactivity, Acids and Salts
Complete: acid + metal carbonate gives ...
2
Electrolysis
State the two materials commonly used as inert electrodes in electrolysis, and explain why they must be inert.
3
Energy Changes
Explain, in terms of bonds, why breaking bonds is an endothermic process.
4
Exothermic and Endothermic Reactions
State what is meant by the activation energy of a reaction.
5
Bond Energies, Cells and Fuel Cells
State whether forming a new chemical bond requires energy or releases energy.

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