锌锰干电池的正极是石墨棒,它放电是的总反应可表示为Zn(固)+2MnO2+2NH4+===Zn2++Mn2O3(固)+2NH3+H2O,在电池放电时正极表面发生放应的物质是Zn 石墨 MnO2和NH4+ Zn2+和NH3用铁片和稀硫酸反应知
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![锌锰干电池的正极是石墨棒,它放电是的总反应可表示为Zn(固)+2MnO2+2NH4+===Zn2++Mn2O3(固)+2NH3+H2O,在电池放电时正极表面发生放应的物质是Zn 石墨 MnO2和NH4+ Zn2+和NH3用铁片和稀硫酸反应知](/uploads/image/z/1436382-54-2.jpg?t=%E9%94%8C%E9%94%B0%E5%B9%B2%E7%94%B5%E6%B1%A0%E7%9A%84%E6%AD%A3%E6%9E%81%E6%98%AF%E7%9F%B3%E5%A2%A8%E6%A3%92%EF%BC%8C%E5%AE%83%E6%94%BE%E7%94%B5%E6%98%AF%E7%9A%84%E6%80%BB%E5%8F%8D%E5%BA%94%E5%8F%AF%E8%A1%A8%E7%A4%BA%E4%B8%BAZn%EF%BC%88%E5%9B%BA%EF%BC%89%2B2MnO2%2B2NH4%2B%3D%3D%3DZn2%2B%2BMn2O3%EF%BC%88%E5%9B%BA%EF%BC%89%2B2NH3%2BH2O%EF%BC%8C%E5%9C%A8%E7%94%B5%E6%B1%A0%E6%94%BE%E7%94%B5%E6%97%B6%E6%AD%A3%E6%9E%81%E8%A1%A8%E9%9D%A2%E5%8F%91%E7%94%9F%E6%94%BE%E5%BA%94%E7%9A%84%E7%89%A9%E8%B4%A8%E6%98%AFZn+%E7%9F%B3%E5%A2%A8+MnO2%E5%92%8CNH4%2B+Zn2%2B%E5%92%8CNH3%E7%94%A8%E9%93%81%E7%89%87%E5%92%8C%E7%A8%80%E7%A1%AB%E9%85%B8%E5%8F%8D%E5%BA%94%E7%9F%A5)
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