This is a Thermite reaction that can be done safely indoors. The rust (Fe2O3) reacts with the aluminum foil (Al) to produce aluminum oxide (Al2O3), elemental iron (Fe) and heat. This reaction is a highly exothermic, single replacement reaction. Aluminum is oxidized and iron is reduced. The melting point of iron is 1530°C and the reaction temperature reaches approximately 2200 °C. (Thermal Energy released is ΔH° = –849 kJ/mole).
Categories: Teacher Demonstration
In this demonstration, a peeled potato is cut into the form of a candle and an almond slice is used as the candle’s “wick.” The teacher lights the almond slice on fire and it burns. The... read more
In this inquiry, students are shown how to do a simple titration with basic apparatus, using a dropper instead of a burette. This enables students to do several quick titrations using different... read more