Identify the combustion reaction. identify the combustion reaction. c (s) + o2 (g) → co2 (g) 2 h2 (g) + o2 (g) → 2 h2o (g) c3h8 (g) + 5 o2 (g) → 3 co2 (g) + 4 h2o (g) 2 c3h7oh (l) + 9 o2 (g) → 6 co2 (g) + 8 h2o (g) all of the reactions are examples of combustion reactions.

Combustion reaction occurs when organic compound reacts with oxygen to form CO₂, H₂O and energy

C (s) + O₂ (g) → CO₂ (g) is Synthesis reaction not combustion

2 H₂ (g) + O₂ (g) → 2 H₂O (g) also Synthesis reaction and not combustion

C₃H₈ (g) + 5 O₂ → 3 CO₂ (g) + 4 H₂O (g) is considered as Combustion reaction

2 C₃H₇OH (l) + 9 O₂ (g) → 6 CO₂ (g) + 8 H₂O (g) Combustion reaction