Daily Practice · GCSE Science

Daily Practice - GCSE Science

24th May 1997

5 questions · GCSE · 584 questions in this band

1
Structures, Properties and Nanoparticles
Explain why graphite conducts electricity but diamond does not.
2
Quantitative Chemistry
Calculate the Mr of calcium carbonate, CaCO3. (Ca = 40, C = 12, O = 16)
3
Moles, Formulae and Equations
Define the limiting reactant.
4
Concentration, Yield and Atom Economy
Why do companies prefer reactions with a high atom economy?
5
Chemical Changes
Write the word equation for the reaction between zinc and hydrochloric acid.

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