精选优质文档-倾情为你奉上Using the research method of literature, means of observation, behavioral approach, conceptual analysis and the pattern of information-seeking of local and overseas were analyzed and compared, Basic pattern strategies of technology information-seeking2010年高考化学改卷反思四会中学 傅元芳 一、试题及改卷情况概述 （一）试题 33.（16分）某科研小组用MnO2和浓盐酸制备Cl2时，利用刚吸收过少量SO2的NaOH溶液对其尾气进行吸收处理。（1）请完成SO2与过量NaOH溶液反应的化学方程式：SO2+2NaOH = _
