C6h5ch3 2c2h4 C6h5c2h5 C3h6 2025 H. • balance the chemical equation. C6h5ch2ch3 = c6h5chch2 + h2 is a decomposition reaction where one mole of ethylbenzene [c 6 h 5 ch 2 ch 3] decomposes into one mole of styrene [c 6 h 5 chch 2].

• balance the chemical equation. Exemple c6h5c2h5 + o2 = c6h5oh + co2 + h2o ne sera pas équilibré, mais phc2h5 + o2 = phoh + co2 + h2o ;