Images CH NH C H

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Ch nh c h. H 2 N−Ch 2 −c(Ch 3 )=Ch−Ch 3 ?. Nh2-Ch--n-Ch--ch2. Ch3 ch2 c n. H2n−ch2−Ch=ch2.
H 2 N−Ch 2 −c(Ch 3 )=Ch−Ch 3 ?. Nh2-Ch--n-Ch--ch2. Ch3 ch2 c n. H2n−ch2−Ch=ch2.