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2026, Vol. 47(15): 88-92    DOI: 10.13884/j.1003-3807hxjy.2026010165
Quantitative Inquiry Experiment Design Highlighting Disciplinary Understanding: Role of Manganese Dioxide in the Reaction of Oxygen Production via Hydrogen Peroxide Decomposition
LI Hui-Yun1, LI Yan2**, JIANG Xiang-Yan3, XU Jiu-Kui4
1. Hebei Provincial Education Examinations Authority,Shijiazhuang 050003,China;
2. Shijiazhuang Institute of Educational Sciences,Shijiazhuang 050033,China;
3. Shijiazhuang No.42 Middle School,Shijiazhuang 050012,China;
4. Hebei Academy of Educational Sciences,Shijiazhuang 050061,China
Received 2026-01-18  Revised 2026-06-02
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