Hc c ch ch3 ch3 название. Hc c ch ch2 ch3. 3hc=ch. hc=c-ch-ch3. hc c ch ch ch2 ch3.

Hc c ch ch3 ch3 название. Hc c ch ch2 ch3. 3hc=ch. hc=c-ch-ch3. hc c ch ch ch2 ch3.
5 / 82