CaCl2溶液和NaHCO3溶液反应生成CaCO3沉淀.为表示这个反应写出了下列两个反应方程式:CaCl2 + NaHCO3 == CaCO3↓+ NaCl + HClCaCl2 + 2 NaHCO3 == CaCO3↓+ 2 NaCl + CO 2↑+ H2O你认为哪一个反应的化学方程式不合理
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![CaCl2溶液和NaHCO3溶液反应生成CaCO3沉淀.为表示这个反应写出了下列两个反应方程式:CaCl2 + NaHCO3 == CaCO3↓+ NaCl + HClCaCl2 + 2 NaHCO3 == CaCO3↓+ 2 NaCl + CO 2↑+ H2O你认为哪一个反应的化学方程式不合理](/uploads/image/z/1425347-35-7.jpg?t=CaCl2%E6%BA%B6%E6%B6%B2%E5%92%8CNaHCO3%E6%BA%B6%E6%B6%B2%E5%8F%8D%E5%BA%94%E7%94%9F%E6%88%90CaCO3%E6%B2%89%E6%B7%80.%E4%B8%BA%E8%A1%A8%E7%A4%BA%E8%BF%99%E4%B8%AA%E5%8F%8D%E5%BA%94%E5%86%99%E5%87%BA%E4%BA%86%E4%B8%8B%E5%88%97%E4%B8%A4%E4%B8%AA%E5%8F%8D%E5%BA%94%E6%96%B9%E7%A8%8B%E5%BC%8F%EF%BC%9ACaCl2+%2B+NaHCO3+%3D%3D+CaCO3%E2%86%93%2B+NaCl+%2B+HClCaCl2+%2B+2+NaHCO3+%3D%3D+CaCO3%E2%86%93%2B+2+NaCl+%2B+CO+2%E2%86%91%2B+H2O%E4%BD%A0%E8%AE%A4%E4%B8%BA%E5%93%AA%E4%B8%80%E4%B8%AA%E5%8F%8D%E5%BA%94%E7%9A%84%E5%8C%96%E5%AD%A6%E6%96%B9%E7%A8%8B%E5%BC%8F%E4%B8%8D%E5%90%88%E7%90%86)
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