计算题4
侯英超 |
发布日期：2010-05-22 11:59:07
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取10克混合物与足量盐酸盐酸充分反应，有可能产生4.4克二氧化碳的是（ ） A.K2CO3和 MgCO3 B．Na2CO3和 CaCO3 C．MgCO3和BaCO3 D．Na2CO3和 K2CO3 |
