Daily Practice

GCSE Science

11th April 1992

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
Write the word equation for the reaction between zinc and hydrochloric acid.
3
Reactivity, Acids and Salts
Define oxidation in terms of electrons.
4
Electrolysis
State the name given to the negative electrode in electrolysis.
5
Energy Changes
State whether the combustion of methane is exothermic or endothermic.

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