Daily Practice · GCSE Science
Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
- 1Moles, Formulae and Equations
Calculate the number of moles in 88 g of carbon dioxide. (Mr = 44)
- 2Concentration, Yield and Atom Economy
State two reasons why a percentage yield is less than 100 percent.
- 3Chemical Changes
State the name given to a reaction in which a substance loses electrons.
- 4Reactivity, Acids and Salts
Complete: acid + metal carbonate gives ...
- 5Electrolysis
State the two materials commonly used as inert electrodes in electrolysis, and explain why they must be inert.
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Every sheet is deterministic: the same date always regenerates the same five questions. All of May 2019, including the monthly compilation PDF.