《过氧化氢制氧气》教案（Oxygen hydrogen peroxide）.docVIP

《过氧化氢制氧气》教案（Oxygen hydrogen peroxide） I havent uploaded the documents for a long time. I have recently discovered several good documents, uploaded them and Shared them with you The teaching, learning and reflection of hydrogen peroxide oxygen Oxygen hydrogen peroxide Suzhou jingfan middle school Dong Minhua The teaching goal Learn how to use hydrogen peroxide to make oxygen in the laboratory (reaction principle, experiment device, collection method, full test). 2. The experiment report can independently complete the experiment and standardize the basic operation of the experiment 3. Explore the characteristics of catalysts 4. What kind of gas is suitable for making oxygen using hydrogen peroxide solution and manganese dioxide Emotional goal Through this lesson Cultivate students ability to analyze, compare and transfer knowledge And the awareness of scientific spirit and solidarity and cooperation that dares to practice and innovate Teaching important points The principle of oxygen preparation and the selection of devices Teaching difficult points Catalyst concept Teaching supplies Explore the multimedia projection of experimental supplies The teaching design Problem introduction: oxygen is an indispensable material in our life It has a wide range of USES Such as emergency patient, welding and cutting metal, steelmaking and so on need more pure oxygen How do you get oxygen? Question: where did we learn to get oxygen in the first place? Answer: industrial separation of liquid air oxygen The laboratory can use potassium permanganate to heat up oxygen Q: can you use other substances in the lab to make oxygen? Thats what were going to look at today Sheet: hydrogen peroxide makes oxygen The experimental principle Manganese dioxide Hydrogen peroxide plus oxygen Experiment: produce and observe the drug Answer: according to the label, the chemical formula of hydrogen peroxide is H2O2 The water solution is called hydrogen peroxide Colorless liquid The hydrogen peroxide conce