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Edexcel IGCSE Chemistry - Paper 1 Exam Questions & Answers
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April 2025

2024/2025

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Edexcel IGCSE Chemistry - Paper 1 Exam Questions & Answers Potassium manganate (VII) and water (purple colour spreads), ammonia and hydrogen chloride (white ring forms closer to hydrogen chloride), bromine gas and air (brown bromine gas diffuses) - ANSWERS3 experiments to show diffusion 4OH- = O2 + 2H2O + 4E- - ANSWERSHalf equation for hydroxide ions Moves slowly (on the surface), fizzes, eventually disappears - ANSWERSLithium with water - observations Moves quickly (on the surface...
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