2 pentene cis or trans July 8, 2019 16 32 64 128 2 pentene cis trans isomers 2 pentene cis trans izomeri 3 methyl 2 pentene cis or trans 2 pentene cis e trans Is 2 methyl 2 pentene cis or trans 2 3 dimethyl 2 pentene cis or trans 2 pentena cis trans Cis 2 pentene