Solving cracking equations

12 cracking equations for students to complete with an answer sheet for self or peer marking in class.

Designed for the AQA GCSE Chemistry/Combined Science specification - Organic Chemistry topic, it allows students to practice determining the missing product in a cracking reaction. It also consolidates students' understanding of the concept of conservation of mass, and provides an opportunity to practice identifying alkanes and alkenes from their formulae, as well as naming the hydrocarbons (i.e. those with up to 4 carbon atoms).

Instructions for students in the resource:

1. Complete the cracking equations by entering the missing reactant and/or product.

2.  Above each substance, write whether it is an alkane or an alkene.

3.  For substances with 4 or fewer carbon atoms, write the name of the substance below the formula.