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Underwater Fire
Description
A fascinating experiment demonstrates how a sparkler can be ignited and maintained inside a container of water, defying the expectation that the water would extinguish the flame. This phenomenon is possible because the sparkler contains a powerful oxidizing agent that independently provides the oxygen required for combustion, without relying on the surrounding air. The experiment illustrates the chemical principles of redox reactions (oxidation-reduction) and combustion under extreme conditions.
Original title
אש מתחת למים
ניסוי מרתק מדגים כיצד ניתן להדליק ולתחזק להבה של זיקוק בתוך כלי עם מים, למרות הציפייה שהמים יכבו את האש. התופעה מתאפשרת בזכות העובדה שהזיקוק מכיל חומר מחמצן חזק המספק את החמצן הדרוש לבעירה באופן עצמאי, ללא תלות באוויר שבחוץ. הניסוי ממחיש עקרונות כימיים של תגובות חמצון-חיזור ובעירה בתנאים קיצוניים.
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