\(C_nH_{2n}+\frac{3n}{2}O_2\rightarrow n_{CO2}+n_{H2O}\)
\(Ca\left(OH\right)_2+CO_2\rightarrow H_2O+CaCO_3\)
_____________0,6__________0,6
\(n_C=\frac{0,6}{0,15}=4\Rightarrow C_4H_8\)
CH2=CH-CH2-CH3 : but-1-en
CH3-CH=CH-CH3: but-2-en
CH2=C(CH3)2 : 2metulbut-1en