Cambridge AS & A Level Chemistry
3.4Covalent bonding and coordinate (dative covalent) bonding
Covalent bonding and coordinate (dative covalent) bonding in Cambridge AS & A Level Chemistry: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic47 practice questions2 lessons
Learning objectives
What the syllabus expects you to be able to do.
- 3.4.1Define covalent bonding; describe it in simple molecules, in period 3 compounds with an expanded octet, and coordinate bonding in NH₄⁺ and Al₂Cl₆.
- 3.4.2Describe σ and π bonds by orbital overlap in H₂, C₂H₆, C₂H₄, HCN and N₂, and use sp, sp² and sp³ hybridisation.
- 3.4.3Define bond energy and bond length and use them to compare the reactivity of covalent molecules.
Lessons
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Covalent and coordinate bonding, bond energy and bond length
40 min
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Orbital overlap: sigma and pi bonds and hybridisation
35 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Covalent bonding and coordinate (dative covalent) bonding into a strength.
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