Daily Practice

GCSE Science

23rd July 1991

5 questions · GCSE · 584 questions in this band

1
Structures, Properties and Nanoparticles
Why is graphite soft and slippery?
2
Quantitative Chemistry
State the law of conservation of mass.
3
Moles, Formulae and Equations
How many atoms are there in 0.5 mol of helium?
4
Concentration, Yield and Atom Economy
Convert 250 cubic centimetres into cubic decimetres.
5
Chemical Changes
Explain why aluminium cannot be extracted from aluminium oxide by heating with carbon.

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