How Much Energy (KJ)is Released If 10 $\rarr$ Al₂O₃(s)+ 2Fe(l) $\Delta$ H° = - 822

question 3

Multiple Choice

How much energy (kJ) is released if 10.0g of Al(s) is reacted with excess Fe₂O₃(s) in the thermite reaction: 2Al(s) + Fe₂O₃(s) $\rarr$ Al₂O₃(s) + 2Fe(l) $\Delta$ H° = - 822.8 kJ/mol

• A)8,230 kJ
• B)823 kJ
• C)305 kJ
• D)152 kJ
• E)4,110 kJ

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