Daily Practice · GCSE Science

Daily Practice - GCSE Science

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

29th December 2018

5 questions · GCSE · 584 questions in this band

1
Concentration, Yield and Atom Economy
Convert a concentration of 0.20 moles per cubic decimetre of NaOH into grams per cubic decimetre. (Mr = 40)
2
Chemical Changes
Calculate the number of moles of sodium hydroxide in 200 cm3 of a 0.500 mol/dm3 solution.
3
Reactivity, Acids and Salts
Define oxidation in terms of electrons.
4
Electrolysis
State the two materials commonly used as inert electrodes in electrolysis, and explain why they must be inert.
5
Energy Changes
Give one everyday example of an endothermic process.

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