CSEC Chemistry · May/June 2011 · Paper 2 · Question 4(b)

An experiment investigated factors causing iron corrosion (rusting) in three parts (A, B, C). Three shiny new iron rods were placed in containers and treated as follows for two days: Part A: Boiled water, sealed container. Part B: No water, sealed container. Part C: Water present, open container.

Explain the observations expected for EACH part.