Chemistry - Chemical Reactions - Balancing chemical equations - Balance Race

A timed balancing challenge. Show unbalanced equations one at a time. The child types the set of coefficients as quickly as possible (e.g., '2,1,2' for 2H₂+O₂→2H₂O). Start with easy (2-atom molecules) and progress to harder (combustion, complex). 15 equations total. Each correct answer in under 15 s