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sion of the appropriate form (such as text formula Chart). To the correct interpretation and description of the relevant phenomena and problems of natural science, that is not only know, but also why. In chemistry teaching teachers must be in-depth study materials, outline and syllabus knowledge to explain clearly to help students understand the basic concepts of chemistry, principles and laws,http://herbscancure.com/wp-content/us-a.html, not only to know their meanings, we need to know their causes and consequences, the applicable conditions and relations and differences between the scope and knowledge Analysis: According to the definition of the heat of combustion: 101kPa the 1mol material completely burning the heat released in the formation of stable oxides is called the heat of combustion of the substance. A ΔH1 tabular 2molH2 of combustion heat evolved; the B CO unstable oxides of carbon; C H2O (g) is unstable oxides, liquid stable. The meaning of the questions only D option to develop students' logical speculation, must be abolished chalk and talk, spoon-feeding teaching methods, you must update the concept of teaching, give full play to the initiative of students, student-centered, using heuristic or discussion teaching , the teaching process into the thinking process of the students. The psychological process of teachers in the teaching process, we should solve their own problems - moderation, analysis, reasoning, selection method presented to the students, so that students really thinking training. Select a typical example, to organize students discussed, summarized, and the training of students' creative thinking. Questioned eliminating, learning and cultivating students' thinking rigor and rigor of reasoning. Given according to the knowledge and the title of the known facts and conditions, extract, summarize relevant information, logical reasoning and argument on the issues, to draw the right conclusions or make the right judgments, and will make the correct expression of the reasoning process out