Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
- 1Reactivity, Acids and Salts
Define oxidation in terms of electrons.
- 2Electrolysis
Concentrated sodium chloride solution (brine) is electrolysed using inert electrodes. State the products formed at the cathode and at the anode.
- 3Energy Changes
State whether the combustion of methane is exothermic or endothermic.
- 4Exothermic and Endothermic Reactions
State the energy transfer that occurs during an exothermic reaction.
- 5Bond Energies, Cells and Fuel Cells
State one factor that affects the size of the voltage produced by a chemical cell.
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