Daily Practice · GCSE Science

Daily Practice - GCSE Science

5th January 1999

5 questions · GCSE · 584 questions in this band

1
Concentration, Yield and Atom Economy
Calculate the concentration in moles per cubic decimetre of a solution containing 0.5 mol in 250 cubic centimetres.
2
Chemical Changes
Write the word equation for the reaction between zinc and hydrochloric acid.
3
Reactivity, Acids and Salts
Name the salt made from zinc oxide and nitric acid.
4
Electrolysis
Explain why solid sodium chloride does not conduct electricity, but molten sodium chloride does.
5
Energy Changes
State whether the combustion of methane is exothermic or endothermic.

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