摘要:28.(1)X的可能结构简式: Ⅰ:HOOC-CH-CH2-COOH Ⅱ:HOOC-CH-COOH Ⅲ:HOOC-C-COOH (2)2HOOC-CH-CH2-COOH+6Na2NaOOC-CH-CH2-COONa+3H2↑ 或2HOOC-CH-COOH+6Na2NaOOC-CH-COONa+3H2↑ 或2HOOC-C-COOH+6Na2NaOOC-C-COONa+3H2↑ a (5)HOOC-C-CH2-COOH HOOC-CH-COOH △ 29.(1)NH3·H2O,H2SO4,KOH,过滤,结晶,加热 (2)Al3++3NH3·H2O═Al(OH)3↓+3NH4+ NH4++OH- ═ NH3↑+H2O

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