现有碳酸钠和碳酸氢钠的混合物137g加热灼烧至固体质量不再减�后再跟足量的盐酸反应放出224l二氧化碳计算原混合物中碳酸钠和碳酸氢 Template




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tomski现有碳酸钠和碳酸氢钠的混合物137g加热灼烧至固体质量不再减�后再跟足量的盐酸反应放出224l二氧化碳计算原混合物中碳酸钠和碳酸氢 coloring