DP Chemistry (last assessment 2024)

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Question 20N.3.hl.TZ0.13a

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Date November 2020 Marks available [Maximum mark: 1] Reference code 20N.3.hl.TZ0.13a
Level hl Paper 3 Time zone TZ0
Command term Write Question number a Adapted from N/A
a.
[Maximum mark: 1]
20N.3.hl.TZ0.13a

A voltaic cell is made up of nickel and magnesium half-cells.

Mg (s) | Mg2+(aq) | | Ni2+(aq) | Ni (s)

(a)

Write the balanced equation for the reaction in this voltaic cell.

[1]

Markscheme

Mg(s)+Ni2+(aq)→Mg2+(aq)+Ni(s) ✔

Accept a balanced molecular equation such as “Mg+NiSO4→MgSO4+Ni”.

Examiners report

Nearly all were able to write the balanced equation for the reaction occurring in the voltaic cell.

Syllabus sections