Chemistry 4.5

From Chemistry Paper 1, Higher

83 marks

Explain the difference between exothermic and endothermic reactions, with an example of each.

From Chemistry Paper 1, Higher

164 marks

Use the bond energies (kJ/mol) H–H 436, Cl–Cl 243, H–Cl 432 to calculate the energy change for H₂ + Cl₂ → 2HCl.

Score 0 / 7 · 0 of 2 marked

This paper is written by Plasmo in the style of the AQA GCSE Combined Science exam. It is not a past paper and is not produced or endorsed by the exam board.

Chemistry 4.5 Exam Questions: AQA GCSE Combined Science | Plasmo