Daily Practice · GCSE Science

Daily Practice - GCSE Science

21st December 1998

5 questions · GCSE · 584 questions in this band

1
Rate and Extent of Chemical Change
State the equation for the mean rate of a reaction in terms of the quantity of reactant used.
2
Rates 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.
3
Reversible Reactions and Equilibrium
The forward reaction of a particular reversible reaction is exothermic. State whether the reverse reaction is exothermic or endothermic.
4
Organic Chemistry
State two products, other than water, that can be formed during the incomplete combustion of a hydrocarbon.
5
Alkanes, Alkenes and Crude Oil
State the type of reaction that occurs when bromine adds across the double bond of an alkene.

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