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初三化合价背诵口诀
更新时间: 2021-01-22 23:44:01  

最新口诀:正一氢锂钠钾银铵根,负一氟氯溴碘氢氧根,二价氧钙镁钡锌,三铝四硅五氮磷,二三铁、二四碳,二四六硫都齐全,锰有二四六和七,铜汞二价最常见。单质为0酸根负,一价硝酸根,二价硫酸碳酸根,三价就是磷酸根。

关键词: 初三 化合价 背诵 口诀

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