Sciences Co-ordinated 9-1 0973: C6 - Chemical reactions Topical Past Paper Questions
Cambridge IGCSE Sciences Co-ordinated 9-1 (0973) past-paper questions on C6 - Chemical reactions, free. This topic is frequently examined across 13 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A student investigates the reaction between dilute hydrochloric acid and aqueous sodium thiosulfate. A yellow solid, sulfur, is made in the reaction. (a) Complete the state symbol for sulfur, S, in the balanced symbol equation. $$ \mathrm{Na}_{2}\mathrm{S}_{2}\mathrm{O}_{3}(\math…
A student investigates the effect of concentration on the rate of a reaction. Copper carbonate reacts with dilute hydrochloric acid forming carbon dioxide gas. Copper carbonate does not dissolve in or react with water. An aqueous solution is made less concentrated by adding water…
A student investigates the reactivity of metals by heating some metal carbonates. Some metal carbonates break down and release carbon dioxide when they are heated. The carbonate of a more reactive metal takes a longer time to break down than the carbonate of a less reactive metal…
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