Thermite is a mixture of

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(B) Thermite is a mixture of iron$(III)$ oxide $(Fe_2O_3)$ and aluminum powder. When ignited,the aluminum powder reacts with the oxygen in the iron ox

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$Al$ powder and $Fe_2O_3$

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(B) Thermite is a mixture of iron$(III)$ oxide $(Fe_2O_3)$ and aluminum powder. When ignited,the aluminum powder reacts with the oxygen in the iron oxide in a highly exothermic reaction,producing molten iron and aluminum oxide $(Al_2O_3)$. The chemical equation is: $Fe_2O_3(s) + 2Al(s) ightarrow 2Fe(l) + Al_2O_3(s) + 	ext{Heat}$. This process is commonly used in welding because the molten iron produced can fill cracks in metal structures.

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