下列实验方案合理的是选项实验目的所用试剂或方法a除去氧化钙中碳酸钙加水溶解过滤蒸�b测定溶液的酸碱度紫色石蕊试液c软化硬水煮沸d验证镁铜银的 Template




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tomski下列实验方案合理的是选项实验目的所用试剂或方法a除去氧化钙中碳酸钙加水溶解过滤蒸�b测定溶液的酸碱度紫色石蕊试液c软化硬水煮沸d验证镁铜银的 coloring