DP Chemistry (last assessment 2024)

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Question 18M.2.hl.TZ2.e.ii

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Date May 2018 Marks available [Maximum mark: 1] Reference code 18M.2.hl.TZ2.e.ii
Level hl Paper 2 Time zone TZ2
Command term Formulate Question number e.ii Adapted from N/A
e.ii.
[Maximum mark: 1]
18M.2.hl.TZ2.e.ii

Graphing is an important tool in the study of rates of chemical reactions.

Formulate the equation for the reaction of one of the acids produced in (e)(i) with calcium carbonate.

[1]

Markscheme

2HNO2(aq) + CaCO3(s) → Ca(NO2)2(aq) + CO2(g) + H2O(l)

OR

2HNO3(aq) + CaCO3(s) → Ca(NO3)2(aq) + CO2(g) + H2O(l)

[1 mark]

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