Alkanes and alkenes – building and cracking formulae

Last updated: 02/02/2022
Contributor: Teachit Author
Alkanes and alkenes – building and cracking formulae
Main Subject
Key stage
Exam board
Category
Organic chemistry: Fuels and feedstocks
Inside
Includes answers
Resource type
Homework
Revision
Starter/Plenary
Worksheet

A KS4 organic chemistry resource to encourage students to think about the general and molecular formulae of organic compounds, focussing on alkanes and alkenes in particular.

It provides an opportunity to practise drawing displayed structural formulae.

It is suitable for individuals, revision, lesson consolidation or homework. Answers are included.

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5

14/11/2019

5

31/01/2019

Many thanks for your comment. We've looked across the specs and there are some differences in the use of the terms structural and displayed formula. As a compromise, we've added 'fully displayed' to the tables. We hope this suits across the specifications.

Sarah Kniveton, Science Editor

24/01/2019

The resource is a good worksheet to use after the topic has been taught. However the use of the word “structural formula” is incorrect. You are actually asking for the “displayed formula”. IGCSE require both. I can’t change it on the PDF so it would help if it was changed on the actual document.

Donna HILLMAN

18/01/2019

5

14/11/2019

5

31/01/2019

Many thanks for your comment. We've looked across the specs and there are some differences in the use of the terms structural and displayed formula. As a compromise, we've added 'fully displayed' to the tables. We hope this suits across the specifications.

Sarah Kniveton, Science Editor

24/01/2019

The resource is a good worksheet to use after the topic has been taught. However the use of the word “structural formula” is incorrect. You are actually asking for the “displayed formula”. IGCSE require both. I can’t change it on the PDF so it would help if it was changed on the actual document.

Donna HILLMAN

18/01/2019