(2011年四川内江,2题)纯碱属于盐类物质,用PH试纸测定某浓度的

(2011年四川内江,2题)纯碱属于盐类物质,用PH试纸测定某浓度的纯碱溶液其PH为10,请说明该溶液呈      性,能使紫色石蕊试液变成      色。

 

答案

碱性    蓝色

解析:略

 

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