摘要:29.(1)HCHO 作消毒剂(或作防腐剂.作化工原料等合理答案) 糖类 (2)H:N:H H N2+3H ㄐ 2NH. C (3)NH4++H20ㄐNH3?H20+H+ (4) NH4++HCO3-+20H- = NH3?H20+H20+CO32一 O
网址:http://m.1010jiajiao.com/timu_id_41192[举报]
网址:http://m.1010jiajiao.com/timu_id_41192[举报]