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溶液酸碱度知识一直是中考中的热点问题.新课程在注重“双基”的同时,加大了对学生能力的考查,并且紧密的与生命活动、生产、生活、环保等方面结合,命题更趋于实践性、综合性.下面就有关pH(酸碱度)知识与近年来的相关创新考题赏析如下,供大家参考.一、知识解读1.酸碱度(pH)与酸碱性的联系酸碱性是指溶液是酸性、碱性还是中性,通常按溶液酸碱度的数值大小(即pH的大
Knowledge of pH has always been a hot issue in the test.While focusing on “double base ”, the new curriculum has strengthened the examination of students’ abilities, and closely combined with life activities, production, life and environmental protection, the proposition More and more practical, comprehensive. The following on the pH (pH) knowledge and innovation in recent years related to the following questions for your reference. First, the interpretation of knowledge 1. pH (pH) and the relationship between acidity and alkaline Refers to the solution is acidic, alkaline or neutral, usually pH value of the solution size (ie, the pH of the large