Daily Practice · GCSE Science

Daily Practice - GCSE Science

15th September 1994

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 gas-volume required practical measuring how concentration affects rate, state one variable that should be controlled.
3
Reversible Reactions and Equilibrium
State what is meant by dynamic equilibrium.
4
Organic Chemistry
State what happens to the boiling point of hydrocarbons as their chain length increases.
5
Alkanes, Alkenes and Crude Oil
Name the catalyst used when an alkene reacts with hydrogen to form an alkane.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Any date always gives the same five questions, so a sheet can be set again or shared. All of September 1994, including the monthly compilation PDF.