九年级化学上册2.2氧气的制法.pptx

,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,海兴小山中学,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,火箭发射,氧 气,太空行走,1/24,氧 气 制 取,2/24,高锰酸钾在特战队员眼中是个宝！,高锰酸钾,特种部队,30,秒野外生火,3/24,高锰酸钾经摩擦加热分解放出,氧气,4/24,赏心悦目,水中鱼因缺氧而浮头,过碳酸钠,5/24,信息检索,6/24,高锰酸钾,KMn,O,4,过碳酸钠,2Na,2,C,O,3,3H,2,O,2,氧化汞,加热,氧气,+,汞,HgO,拉瓦锡,O,2,梳理知识,7/24,高锰酸钾,KMn,O,4,过碳酸钠,2Na,2,C,O,3,3H,2,O,2,氧化汞,加热,氧气,+,汞,Hg,O,拉瓦锡,氧元素,含有,氧元素,物质可能制出,氧气,8/24,以下哪些物质可能产生氧气,1.,食盐 （,NaCl,）,2.,过氧化氢（,H,2,O,2,）,3.,氧化汞 （,HgO,）,4.,高锰酸钾（,KMnO,4,）,5.,氯酸钾 （,KClO,3,）,6.,甲烷 （,CH,4,）,7.,水 （,H,2,O,）,9/24,高锰酸钾,暗紫色固体,过氧化氢,无色液体,10/24,给固体药品加热,温馨提醒：注意操作安全,11/24,高锰酸钾,暗紫色固体,过氧化氢,无色液体,12/24,资料：,3%,过氧化氢：每,100g,液体中有,3g,过氧化氢和,97g,水,加热会使水分蒸发更加快,13/24,试验,药品：过氧化氢溶液、“神秘”药品,仪器：试管夹、试管架、试管、酒精灯,用具：火柴、木条,14/24,“神秘”药品,名 称：二氧化锰,化学式：,MnO,2,颜 色：黑色,状 态：固体,作 用：？,15/24,信息检索,16/24,“神秘”药品,名 称：二氧化锰,化学式：,MnO,2,颜 色：黑色,状 态：固体,作 用：,催化剂,催化作用（加紧过氧化氢反应速率）,过氧化氢制氧气反应中角色,：,17/24,在化学反应中能改变其它物质化学反应速率，而本身质量和化学性质在反应前后都没有发生改变物质叫催化剂（又叫触媒）。,催化剂,18/24,在化学反应中能改变其它物质化学反应速率，而本身质量和化学性质在反应前后都没有发生改变物质叫催化剂（又叫触媒）。,催化剂,19/24,小知识：,食用油里加入,0.01%0.02%,没食子酸正丙脂,能够,减慢,油脂与氧气化学反应速率，有效预防酸败。,20/24,在化学反应中能改变其它物质化学反应速率，而本身质量和化学性质在反应前后都没有发生改变物质叫催化剂（又叫触媒）。,催化剂,“,一改,”：改变反应速率,“,二不变,”：本身质量和化学性质都不变,（,加紧或减慢,）,21/24,催化剂在化工生产中有主要作用,:,22/24,小结：,1,、制氧气反应原理,：,过氧化氢 水,+,氧气,二氧化锰,高锰酸钾 锰酸钾,+,二氧化锰,+,氧气,2,、催化剂：,改变反应速率,本身质量和化学性质不变,特征,23/24,谢谢大家！,24/24,