Daily Practice
GCSE Science
← All tiers
18th July 1992
- 1Quantitative Chemistry
Magnesium is burned in an open crucible and the mass increases. Explain why.
- 2Moles, Formulae and Equations
Why is the amount of product directly proportional to the amount of limiting reactant?
- 3Concentration, Yield and Atom Economy
Give the formula for percentage yield.
- 4Chemical Changes
Write the word equation for the reaction between zinc and hydrochloric acid.
- 5Reactivity, Acids and Salts
Give the ionic equation for neutralisation.
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Any date always gives the same five questions, so a sheet can be set again or shared. All of July 1992, including the monthly compilation PDF.