Unit 10.5.6: Alkanes and alkenes
Class activity - Demonstration
Chemical and physical properties of hexane and hex-1-ene.
Notes on the demonstration
Written piece of work. "Compare and contrast the properties of alkanes and alkenes".
The work should identify the similarities and differences in physical and chemical properties with supporting evidence and appropriate equations.
Criterion A(i), (iii)
Criterion C(i), (ii)
Samples burned on a watch glass - observe the smokiness of the flames (extension with ethyne from calcium carbide and water). Explain in terms of the relative strengths of bonds.
Identify products of incomplete combustion, including carbon micro-particulates and carbon monoxide.
Reaction with bromine water (addition)
Reaction with potassium manganate(VII)
Mobility of liquids
Density of liquids (comparative)