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Ch3-nh2 + сн3i. Сн3 NH ch3. Ch3-ch3+ ch3i. Ch3nh2.
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Na h c o 3
C 6 h 5 ch 3
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H ba c
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Газ c h
Ch3-nh2 + сн3i. Сн3 NH ch3. Ch3-ch3+ ch3i. Ch3nh2. 