Daily Practice · GCSE Science

Daily Practice - GCSE Science

17th November 1998

5 questions · GCSE · 584 questions in this band

1
Chemical Changes
State the name given to a reaction in which a substance loses electrons.
2
Reactivity, Acids and Salts
Define oxidation in terms of electrons.
3
Electrolysis
State the two materials commonly used as inert electrodes in electrolysis, and explain why they must be inert.
4
Energy Changes
Explain, in terms of bonds, why breaking bonds is an endothermic process.
5
Exothermic and Endothermic Reactions
State the energy transfer that occurs during an exothermic reaction.

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