AQA · GCSE · Chemistry · Higher
Balancing iron and chlorine stoichiometry
When iron reacts with chlorine, 0.12 mol of iron reacts with 0.18 mol of chlorine (Cl₂).
Which is the correct equation for the reaction? Tick one box.
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Marking points
- 1 Selects 2 Fe + 3 Cl₂ → 2 FeCl₃.
Why this answer loses marks
I chose the equation with the largest product formula.
Use the reactant mole ratio to derive balanced coefficients, not the apparent formula size.