Combined Science: Trilogy 8464: C5.Energy Changes Topical Past Paper Questions
AQA GCSE Combined Science: Trilogy (8464) past-paper questions on C5.Energy Changes, free. This topic is frequently examined across 7 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
Nitrogen reacts with hydrogen to produce ammonia ( $ NH_{3} $). $ \underline{1} $ Complete the dot and cross diagram for an ammonia molecule. [2 marks] 2 The equation for the reaction between nitrogen and hydrogen to produce ammonia is: $$ \begin{array}{c}+\underbrace{\vphantom{\…
A student investigated the temperature change when magnesium was added to zinc sulfate solution. Figure 5 shows the apparatus. Figure 5 1 Which piece of equipment is labelled X? [1 mark] Tick (✓) one box. Beaker Ruler Thermometer 2 Which piece of equipment is the best to use to m…
Methane, ethane, propane and butane all react with oxygen to produce carbon dioxide and water. 1) Suggest why a mixture of methane and oxygen does not react at room temperature. Answer in terms of particles. [2 marks] 2 Table 3 shows the energy released when methane, ethane and p…
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