Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
9th April 2026
- 1Bond Energies, Cells and Fuel Cells
State whether forming a new chemical bond requires energy or releases energy.
- 2Rate and Extent of Chemical Change
State the four factors that can increase the rate of a chemical reaction.
- 3Rates of Reaction
A tangent drawn to a volume-time graph at 15 seconds passes through the points (5 s, 6 cm3) and (25 s, 66 cm3). Calculate the rate of reaction at 15 seconds.
- 4Reversible Reactions and Equilibrium
The forward reaction of a particular reversible reaction is exothermic. State whether the reverse reaction is exothermic or endothermic.
- 5Organic Chemistry
State two products, other than water, that can be formed during the incomplete combustion of a hydrocarbon.
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