Reaction exercises

Iron oxide atom balance

Elemental iron and oxygen written as an atom-conservation exercise.

Equation

Fe + O2 -> Fe2O3

Learning goal

Conservation of each element

Understanding this entry

A balanced equation establishes equal atom counts. It does not prove that a reaction will occur, identify hazards, describe equilibrium or provide a safe procedure. Use the reaction balancer to calculate and check the smallest positive integer coefficients.

Further reading and reference: Topic reference ↗. Values and educational summaries are not a substitute for specialised advice.