几个小问题!
分别写出硫化氢和溴水与下列物质的反应方程式:\r\n⑴K2S溶液---H2S+K2S==2KHS \r\nBr2 + K2S == 2 KBr + S\r\n\r\n⑵SO2---2H2S+SO2==3S↓+2H2O \r\nBr2 + SO2 + 2 H2O == 2 HBr + H2SO4\r\n ⑶CuSO4溶液 ---H2S+CuSO4==CuS↓+H2SO4\r\n 与溴水不反应\r\n⑷AgNO3溶液 ---H2S+AgNO3== Ag2S↓+2HNO3\r\nBr2 + H2O == HBr + HBrO \r\nHBr + AgNO3 == AgBr↓ + HNO3\r\n...全部
分别写出硫化氢和溴水与下列物质的反应方程式:\r\n⑴K2S溶液---H2S+K2S==2KHS \r\nBr2 + K2S == 2 KBr + S\r\n\r\n⑵SO2---2H2S+SO2==3S↓+2H2O \r\nBr2 + SO2 + 2 H2O == 2 HBr + H2SO4\r\n ⑶CuSO4溶液 ---H2S+CuSO4==CuS↓+H2SO4\r\n 与溴水不反应\r\n⑷AgNO3溶液 ---H2S+AgNO3== Ag2S↓+2HNO3\r\nBr2 + H2O == HBr + HBrO \r\nHBr + AgNO3 == AgBr↓ + HNO3\r\n⑸NaHCO3溶液---H2S+2NaHCO3== Na2S+2CO2↑+2H2O\r\nBr2 + H2O == HBr + HBrO \r\nHBr + NaHCO3 == NaBr + CO2 ↑+ H2O\r\nHBrO + NaHCO3 == NaBrO + CO2↑ + H2O\r\n ⑹烧碱溶液---H2S+2NaOH==Na2S+2H2O \r\nBr2 + 2 NaOH == NaBr + NaBrO + H2O。
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