Daily Practice · GCSE Science

Daily Practice - GCSE Science

Biology, chemistry and physics recall, definition and calculation, drawn from every strand.

3rd January 2025

5 questions · GCSE · 584 questions in this band

1
Structures, Properties and Nanoparticles
Why do polymers have higher melting points than small molecules such as methane?
2
Quantitative Chemistry
A sealed flask containing 12.0 g of reactants is shaken and a reaction occurs. What is the total mass afterwards?
3
Moles, Formulae and Equations
Calculate the number of moles in 88 g of carbon dioxide. (Mr = 44)
4
Concentration, Yield and Atom Economy
State two reasons why a percentage yield is less than 100 percent.
5
Chemical Changes
State the name given to a reaction in which a substance loses electrons.

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