浦京棋牌

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          2. Tin tức Bitcoinhọc tiếng Trung onlineyoga Viet Nam

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                1. Blockchain là gìhọc tiếng Trung onlineyoga Viet Nam

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                      1. Blockchain là gìhọc tiếng Trung onlineyoga Viet Nam
                        当前位置: 首页 > 问题分类 > 高中 > 化学 > 问题详情
                        问题

                        选择下列那组试剂可以鉴别环丙烷,丙烯与丙炔?()

                        A、AgNO3DEANRONGYE,JINSHUNA

                        浦京棋牌B、Br2DECCl4RONGYE;KMnO4RONGYE

                        C、AgNO3DEANRONGYE;KMnO4RONGYE

                        D、HgSO4/H2SO4;KMnO4RONGYE

                        参考答案
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                        • 浦京棋牌YIZHIDENH3DESHENGCHENGRESHI46KJ/moL,H-HJIANNENGWEI435kJ/mol,DANDANSANJIANJIANNENGWEI941mol,N-NJIANDEPINGJUNJIANWEIDUOSHAO。

                        • 浦京棋牌XIALIERONGYEXINGZHIZHONGNAYIZHONGBUSHIYISHUXING()

                          A.NINGGUDIAN

                          B.FEIDIAN

                          C.SHENTOUYA

                          D.YANSE

                        • ZAI1LYOU0.01mol/MgCl2 0.1mol/LNH3DEHUNHERONGYEZHONG,WEIBUSHIMg(OH)2CHENDIANXICHU,ZHISHAOJIARUDUOSHAONH4Cl?

                          Kb(NH3)=1.8*10-5

                          KspMg(OH)2=1.8*10-11  NH4ClFENZIZHILIANG53.5

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