Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
21st March 2023
- 1Rate and Extent of Chemical Change
State what is meant by a catalyst.
- 2Rates of Reaction
Explain why increasing the surface area of a solid reactant increases the rate of a reaction.
- 3Reversible Reactions and Equilibrium
State Le Chatelier's principle in your own words.
- 4Organic Chemistry
Balance the equation for the complete combustion of methane: CH4 + O2 -> CO2 + H2O
- 5Alkanes, Alkenes and Crude Oil
Propene (C3H6) reacts with steam in the presence of a catalyst. Name the catalyst, and name the type of compound formed.
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