Daily Practice · GCSE Science

Daily Practice - GCSE Science

12th March 1999

5 questions · GCSE · 584 questions in this band

1
Reactivity, Acids and Salts
Define oxidation in terms of electrons.
2
Electrolysis
Concentrated sodium chloride solution (brine) is electrolysed using inert electrodes. State the products formed at the cathode and at the anode.
3
Energy Changes
A reaction profile shows the reactants at 220 kJ and the products at 340 kJ. State whether the reaction is exothermic or endothermic.
4
Exothermic and Endothermic Reactions
State the energy transfer that occurs during an exothermic reaction.
5
Bond Energies, Cells and Fuel Cells
State one factor that affects the size of the voltage produced by a chemical cell.

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