23.整理实验室时小明�现实验台上有一瓶失落标签的白色粉末可能是碳酸钠也可能是氢氧化钙白色粉末是哪种物质�请你提出猜想并设计实验进行 Template




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tomski23.整理实验室时小明�现实验台上有一瓶失落标签的白色粉末可能是碳酸钠也可能是氢氧化钙白色粉末是哪种物质�请你提出猜想并设计实验进行 coloring