“要想牙齿好,天天用芳草”.制作我省全国驰名商标“芳草”牙膏摩擦剂的轻质碳酸钙可以用矿石A来制备,
\u7528\u4f5c\u7259\u818f\u6469\u64e6\u5242\u7684\u8f7b\u8d28\u78b3\u9178\u9499\u53ef\u4ee5\u7528\u77ff\u77f3A\u6765\u5236\u5907\uff0c\u67d0\u5316\u5b66\u5174\u8da3\u5c0f\u7ec4\u8bbe\u8ba1\u4e862\u79cd\u8f6c\u5316\u6d41\u7a0b\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff0e\u8d44\u6599\uff1aa\uff081\uff09\u751f\u77f3\u7070\u4e0e\u6c34\u5145\u5206\u53cd\u5e94\u540e\u53ef\u5f97\u5230\u9897\u7c92\u975e\u5e38\u7ec6\u5c0f\u7684\u719f\u77f3\u7070\u4e73\uff0c\u6c22\u6c27\u5316\u9499\u7684\u6eb6\u89e3\u5ea6\u76f8\u5f53\u5c0f\uff0c\u4e0d\u5236\u6210\u60ac\u6d4a\u6db2\uff0c\u4f1a\u4f7f\u751f\u4ea7\u6548\u7387\u76f8\u5f53\u4f4e\uff0c\u6545\u7b54\u6848\u4e3a\uff1a\u6f84\u6e05\u77f3\u7070\u6c34\u4e2d\u6c22\u6c27\u5316\u9499\u6d53\u5ea6\u592a\u5c0f\uff0c\u751f\u4ea7\u6548\u7387\u5f88\u4f4e\uff1b\uff082\uff09\u6c27\u5316\u9499C\u548c\u6c34\u4f1a\u751f\u6210\u6c22\u6c27\u5316\u9499D\uff0c\u6c22\u6c27\u5316\u9499\u4f1a\u4e0e\u78b3\u9178\u94a0\u53cd\u5e94\u751f\u6210\u78b3\u9178\u9499\u6c89\u6dc0\u548c\u6c22\u6c27\u5316\u94a0\uff0c\u6545\u7b54\u6848\u4e3a\uff1aCa\uff08OH\uff092+Na2CO3\u2550CaCO 3\u2193+2NaOH\uff1b\uff083\uff09\u6d41\u7a0b\u4e00\u76f8\u5bf9\u4e8e\u6d41\u7a0b\u4e8c\uff0c\u4f7f\u7528\u7684\u662f\u5236\u6c27\u5316\u9499\u751f\u6210\u7684\u4e8c\u6c27\u5316\u78b3\uff0c\u65e2\u53ef\u4ee5\u53d8\u5e9f\u4e3a\u5b9d\uff0c\u53ef\u4ee5\u964d\u4f4e\u6210\u672c\uff0c\u4e5f\u80fd\u51cf\u7f13\u6e29\u5ba4\u6548\u5e94\uff0c\u6545\u7b54\u6848\u4e3a\u5176\u4e00\uff1a\u5229\u7528\u4ea7\u751f\u7684\u4e8c\u6c27\u5316\u78b3\u6bd4\u53e6\u52a0\u78b3\u9178\u94a0\u6eb6\u6db2\u66f4\u7ecf\u6d4e\uff0c\u751f\u4ea7\u6210\u672c\u66f4\u4f4e\uff1b\u5176\u4e8c\uff1a\u82e5\u4ea7\u751f\u7684\u4e8c\u6c27\u5316\u78b3\u4e0d\u56de\u6536\u76f4\u63a5\u6392\u653e\uff0c\u5f15\u8d77\u6e29\u5ba4\u6548\u5e94\uff0c\u4e0d\u7b26\u5408\u201c\u8282\u80fd\u51cf\u6392\u201d\uff0e
CaCO3=\u9ad8\u6e29= CaO+CO2\u2191
CaO + H2O === Ca(OH)2
CO2 +Ca(OH)2 ==CaCO3\u2193+ H20
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