The thermite reaction,Fe2O3 + Al -------> Al2O3 + Feproduces so much heat that the Fe product melts. This reactionis used industrially to weld metal parts under water,where a torch cannot be employed. It is also a favorite chemicaldemonstration in the lecture hall (on a small scale).(a) Balance the chemical equation for the thermite reaction,and include the proper states of matter.(b) Calculate how many grams of aluminum are needed tocompletely react with 500.0 g of Fe2O3 in this reaction.(c) This reaction produces 852 kJ of heat per mole of Fe2O3reacted. How many grams of Fe2O3 are needed to produce1.00x 104 kJ of heat?(d) If you performed the reverse reaction— aluminum oxideplus iron makes iron oxide plus aluminum—would thatreaction have heat as a reactant or a product?

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".