Multiple Choice
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) heat of reaction = −847.6 kJ/mol What mass of iron is formed if 725 kJ of heat are released?
A) 23.9 g
B) 47.8 g
C) 65.3 g
D) 95.5 g
E) 112 g
Correct Answer:
Verified
Correct Answer:
Verified
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