College Entrance Examination Of The Chemical Reaction Process Diagrams

Make a general survey of the chemical test items involved in the test papers of comprehensive science for exams of college entrance in China since "The course standerd of chemistry in high schools (experiments)" put into execution, Test questions of diagram of chemical reaction is becoming hotspot. Because this type of test questions not only check examinee’s familiarity with basic concept of principle of chemical reaction, but also the logical thinking ability in chemistry. The paper classifies and remarks50test questions of diagram of chemical reaction, which selected form the chemical test items involved in the test papers of comprehensive science for exams of college entrance in China since the new curriculum level put into execution in2007, in order to arrange knowledge points under basic concept and thinking ways of solving.This article comprises two parts:Ⅰ. a brief review of some main concept of chemical reaction and fundamental principle of diagram of chemical reaction. Although Some content fall outside middle school chemistry, the paper just want to give a precise definition of concept which could instruct chemistry teaching in middle school. Ⅱ. an analysis of typical chemical graph about thermochemistry, reaction rate, chemical equilibrium, ionic reaction (aq.), especially for the content of chemical graph, and delete the other terms not related to the chemical graph.