what is ch3ch2ch3
CH3CH2CH3 is the formula for propane. The Lewis Dot structure  starts with three C atoms singly bonded in a chain.On each  unbonded side, every C atom gets one singly bonde â¦ d H atom.he Lewis Dot structure  starts with three C atoms singly bonded in a chain. On each  unbonded side, every C atom gets one singly bonde â¦ d H atom.