离子方程式是高中化学知识的重点和难点,正确书写离子方程式对同学们来说也是难点。因其中涉及的化学知识较多:如质量守恒定律、电荷守恒原则、电解质的强弱、物质的溶解性等。要求同学们能考虑周全、灵活运用这一系列知识,才能正确书写离子方程式。下面就同学们在书写离子方程式时常犯的一些错误进行例析,以加强同学们分辨错误的能力,提高同学们书写离子方程式的正确率。 Ion equation is the high school chemistry knowledge of the key and difficult, correctly written ion equation is also difficult for students. Because of which more chemical knowledge involved: such as the law of conservation of mass, the principle of conservation of charge, the strength of the electrolyte, the solubility of substances. Students are required to consider the comprehensive and flexible use of this knowledge in order to correctly write the ion equation. Here are some of the mistakes students often make when writing ionic equations in order to strengthen the students ability to tell the wrong, to improve the students to write the correct rate of ion equations.