Combined Science 0653
Cambridge IGCSE Combined Science 0653 — C6. Energy Changes in Chemical Reactions topical past papers
170 past-paper questions on C6. Energy Changes in Chemical Reactions for Combined Science 0653.
- Questions
- 170
- Years
- 2017–2026
- With mark scheme
- 100%
- Questions 2022–2026
- 86
Anyone can browse these pages. Opening the questions and their mark schemes takes a free Momentum account.
How C6. Energy Changes in Chemical Reactions has been examined
From 2022 to 2026, C6. Energy Changes in Chemical Reactions was on Paper 3 · Theory (Core) in 9 of 14 exam series, worth about 6% of that paper’s marks.
| Paper | Questions | Share of marks | Series |
|---|---|---|---|
| Paper 1 · Multiple Choice (Core) | 22 | 2% | 11 of 14 |
| Paper 2 · Multiple Choice (Extended) | 29 | 2% | 13 of 14 |
| Paper 3 · Theory (Core) | 15 | 6% | 9 of 14 |
| Paper 4 · Theory (Extended) | 13 | 5% | 9 of 14 |
| Paper 6 · Alternative to Practical | 7 | 7% | 6 of 11 |
Momentum’s own count, over the questions in its bank for these years: a series is one exam session, every zone included, and a question filed under two chapters counts in both. Median marks per question: 1.
Filed in Momentum under: C6. Energy Changes in Chemical Reactions.
Practising in Momentum
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Past-paper questions and mark schemes are the copyright of Cambridge International. Momentum shows them to signed-in learners for revision and does not publish them on these pages.