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2.3 Ionic bonding

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Question 18

A sample of calcium carbonate contains Ca2+\mathrm{Ca^{2+}}Ca2+ ions and CO32−\mathrm{CO_{3}^{2-}}CO32−​ ions. Energy is needed to separate the calcium ions from the carbonate ions.

What interaction is overcome when these ions are separated?

[1]
A

strong electrostatic repulsion between calcium ions and carbonate ions

B

strong electrostatic attraction between calcium ions and carbonate ions

C

strong electrostatic attraction between two neighbouring carbonate ions

D

strong covalent bonds holding atoms within each carbonate ion

Markscheme

2.3 Ionic bonding Questions

  1. GCSE
  2. /Chemistry
  3. /2.3 Ionic bonding

119 exam-style questions on Edexcel GCSE Chemistry 2.3 Ionic bonding, covering 2.3.1 Ions and the formation of ionic bonds, 2.3.2 Naming and deducing formulae of ionic compounds, and 2.3.3 Giant ionic lattices. Each one has a worked solution and a mark scheme showing where the marks go.

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