鉴别下列各组物质所选试剂a.氢氧化钠溶液和碳酸钠溶液 b.氯化钠固体和无水硫酸铜固体c.硬水与软水d.铁粉和锌粉——青夏教育精英家教�—— Template




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tomski鉴别下列各组物质所选试剂a.氢氧化钠溶液和碳酸钠溶液 b.氯化钠固体和无水硫酸铜固体c.硬水与软水d.铁粉和锌粉——青夏教育精英家教�—— coloring