Daily Practice

GCSE Science

6th November 1986

5 questions · GCSE · 584 questions in this band

1
Rate and Extent of Chemical Change
A reaction between calcium carbonate and hydrochloric acid produces 72 cm3 of carbon dioxide gas in 30 seconds. Calculate the mean rate of reaction.
2
Rates of Reaction
In the disappearing cross required practical, state the dependent variable that is measured.
3
Reversible Reactions and Equilibrium
In the Haber process, state the effect of removing some ammonia from the equilibrium mixture as it forms on the position of equilibrium.
4
Organic Chemistry
Name the two industrial methods of cracking.
5
Alkanes, Alkenes and Crude Oil
State the general formula of the alkenes.

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