能使溴水褪色的物质有哪些?
问题描述:
能使溴水褪色的物质有哪些?
答
(1)能使溴水褪色的无机物.如H2S Br2+H2S=2HBr+S↓ SO2 Br2+SO2+2H2O=H2SO4+2HBr Na2SO3 Br2+Na2SO3+H2O=Na2SO4+2HBr Mg粉(或Zn粉等)Br2+Mg=MgBr2 NaOH等强碱Br2+2NaOH=NaBr+NaBrO+H2O Na2CO3(或AgN...