Daily Practice · GCSE Science

Daily Practice - GCSE Science

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

16th April 2013

5 questions · GCSE · 584 questions in this band

1
Moles, Formulae and Equations
Why is the amount of product directly proportional to the amount of limiting reactant?
2
Concentration, Yield and Atom Economy
Give the formula for percentage yield.
3
Chemical Changes
Write the word equation for the reaction between zinc and hydrochloric acid.
4
Reactivity, Acids and Salts
Give the ionic equation for neutralisation.
5
Electrolysis
In the industrial extraction of aluminium, explain why the carbon anodes need to be replaced regularly.

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