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理科综合试题中有的化学试题的确要用物理或数学知识才能解答,但是,各学科的重要思想仍是立足之本。有的化学试题或物理试题仍然可从化学角度或物理角度思考,只要抓住问题的本质和要害,说不定还会简明一些。对化学科的重要思想“守恒定律”等一定要灵活应用,抓住其本质,领略其真谛。切莫顾此失彼追求综合而忘了根本。例题:已知 Cl~-与 Ag~+反应生成AgCl,每次新生成的 AgCl 中又有10%见光分解成单质银和氯气,Cl_2又可在
The chemistry test questions in the science general questions must be solved with physical or mathematics knowledge. However, the important ideas of various disciplines are still based on this. Some chemical or physics questions can still be considered from a chemical or physical point of view. As long as they grasp the nature and key issues, they may be concise. The important idea of the branch of chemistry, the “conservation law,” must be flexibly applied, grasp its essence, and appreciate its true meaning. Do not take care of this instead of pursuing synthesis and forgetting the fundamentals. Example: It is known that Cl~- reacts with Ag~+ to form AgCl, and each newly formed AgCl has 10% more light to decompose into elemental silver and chlorine.