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The Steel Wool Mystery: How Is This Possible?
Description
Discover the surprising phenomenon that occurs when steel wool is burned on precision digital scales. Overturning all intuition, the weight of the steel wool actually increases during combustion due to a chemical reaction with oxygen in the air, resulting in the formation of iron oxide. This laboratory demonstration provides a visually stunning look at the principle of conservation of mass and the creation of new compounds through the process of oxidation.
Original title
חידת צמר הפלדה - איך זה יכול להיות?! #2
גלו את התופעה המפתיעה המתרחשת כאשר שורפים צמר פלדה על גבי מאזניים דיגיטליים מדויקים. בניגוד לאינטואיציה, המשקל של צמר הפלדה עולה במהלך הבעירה כתוצאה מתגובה כימית עם החמצן שבאוויר ויצירת תחמוצת ברזל. המעבדה מדגימה בצורה חזותית מרשימה את עקרון שימור החומר ואת היווצרותן של תרכובות חדשות בתהליך של חמצון.
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