Chemistry 8462: Quantitative Chemistry Topical Past Paper Questions
AQA GCSE Chemistry (8462) past-paper questions on Quantitative Chemistry, free. This topic is frequently examined across 7 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
A student investigated the rate of the reaction between zinc and sulfuric acid. The equation for the reaction is $$ \mathrm{Zn(s)~+~H_{2}SO_{4}(aq)~\rightarrow~ZnSO_{4}(aq)~+~H_{2}(g)} $$ Figure 10 shows the apparatus. Figure 10 This is the method used. 1. Pour 50 cm $ ^{3} $ of…
This question is about displacement reactions. Iron is extracted from iron oxide by a displacement reaction with carbon. The equation for the reaction is: $$ \mathrm{Fe}_{2}\mathrm{O}_{3}+\mathrm{3C}\rightarrow2\mathrm{Fe}+\mathrm{3CO} $$ ## 1 Which substance in the equation is r…
This question is about silicon and compounds of silicon. 1 The reactivity series sometimes includes non-metals such as carbon, hydrogen and silicon. Silicon can be extracted by reducing silicon dioxide with different substances. The equation for one possible reaction is: $$ 2\mat…
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