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Page 03

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Ammonia and sulfuric acid

state

Try it yourself

Supplement. For the Haber process, state (a) the symbol equation, (b) the source of the nitrogen and of the hydrogen, (c) the typical temperature, pressure and catalyst.

state: give a concise answer.

Give a short answer in each box
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Scope and sources

Cambridge IGCSE Chemistry 0620 · 2026–2028 v2 · Original learning materials.

Reversible reactions and equilibrium (6.3 Core 1 and 2; Supplement 3 to 11): the reversible sign, hydrated and anhydrous salts and the water tests, dynamic equilibrium in a closed system, how changing the conditions moves its position, and the Haber and Contact processes. Energy changes are in ENER01, collision theory and catalysts in RATE01, and fertilisers in FERT01.

Apparatus, amounts and times in the experiment are illustrative. Real practical work follows a teacher-approved safety method.

Official Cambridge syllabus