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a.ʯ��ܛ��̎��ʯ��{(di��o)�Ƴ�ʯ��CaO+H2O→Ca(OH)2,��ó�һ��ȵ�ʯ��Һ��ˮ��

b.ʯ�Ҽ��Aܛ��̎��,��ʯ��,߀��뼃�ANa2CO3,��ȥ��̼��}Ӳ��,��@�N��m��Ӳ�ȴ��ډA�ȵ�ԭˮ��

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��(y��ng)��ǲ��։A��,��c�}�A��ǲ��ܳ�ȥ��,��ͬ�r��ʯ�Һ�ʯ��(CaSO4)�ķ��,�t��ܛ��ˮ��ͬ�r��ˮ��c�}�A��

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