ongerajaphet97 ongerajaphet97

06-05-2024
Chemistry

Answered

The highly exothermic thermite reaction, in which aluminum reduces iron(III) oxide to elemental iron, has been used by railroad repair crews to weld rails together.

2Al(s) + Fe2O3(s) → 2Fe(s) + Al2O3(s) ΔH°rxn= –847.6 kJ/mol

What mass of iron is formed if 725 kJ of heat are released?

Answer :

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