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2.1 Chemical bonds, ionic, covalent and metallic

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Question 25

A computer simulation is intended to represent an ionic compound made of A+\text{A}^{+}A+ ions and B2−\text{B}^{2-}B2− ions.

The table shows the numbers of ions currently in the simulation.

IonNumber of ions
A+\text{A}^{+}A+24
B2−\text{B}^{2-}B2−16
(a).

Explain why the numbers of ions in the simulation cannot be correct for an ionic compound.

[2]
(b).

Give the empirical formula of the ionic compound that the simulation is intended to represent.

[1]
Markscheme

2.1 Chemical bonds, ionic, covalent and metallic Questions

  1. GCSE
  2. /Chemistry
  3. /2.1 Chemical bonds, ionic, covalent and metallic

98 exam-style questions on AQA GCSE Chemistry 2.1 Chemical bonds, ionic, covalent and metallic, covering 2.1.1 Chemical bonds, 2.1.2 Ionic bonding, 2.1.3 Ionic compounds, 2.1.4 Covalent bonding, and 2.1.5 Metallic bonding. Each one has a worked solution and a mark scheme showing where the marks go.

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