论文部分内容阅读
准则一:化学用语一定要规范、准确考生作答时要尽量使用化学专业术语,且要准确、简洁。要求写分子(离子)表达式的题目,考生一定要注意表达式中的数字、符号等的书写位置(前后位置或上下角标位置),因为位置不同,含义就不同,考生平时要养成良好习惯,字迹规范,用语准确,以免写错丢分。要求书写电子式、化学方程式(含离子方程式、电极反应式、热化学方程式)等,考生一定要看清题目要求,正确作答,要求写离子
Criterion 1: Chemical terms must be standardized and accurate Candidates should try their best to use chemical terms when answering questions, and should be precise and concise. Requirements write molecules (ions) expression of the subject, candidates must pay attention to the expression of numbers, symbols and other writing position (before or after the position or the upper and lower corner position), because of different positions, the meaning is different, the candidates usually develop well Habit, writing specifications, language accuracy, so as not to miss the wrong points. Requires writing electronic, chemical equations (including ion equation, electrode reaction, thermochemical equation), etc., candidates must see the subject requirements, the correct answer, asked to write ions