DP Chemistry (last assessment 2024)

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Question 22N.2.sl.TZ0.f.i

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Date November 2022 Marks available [Maximum mark: 1] Reference code 22N.2.sl.TZ0.f.i
Level sl Paper 2 Time zone TZ0
Command term Deduce, Write Question number f.i Adapted from N/A
f.i.
[Maximum mark: 1]
22N.2.sl.TZ0.f.i

Ammonium nitrate, NH4NO3, is used as a high nitrogen fertilizer.

Solid ammonium nitrate can decompose to gaseous dinitrogen monoxide and liquid water.

Write the chemical equation for this decomposition.

[1]

Markscheme

NH4NO3 (s) → N2O (g) + 2H2O (l) ✔

Examiners report

A very well answered question. The majority of candidates wrote a balanced equation given the names of the reactant and products.

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