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Calculate Delta H for the reaction Al +...

Calculate `Delta H` for the reaction `Al + Cr_2O_3 rarr Cr +Al_2O_3` When enthalpy of formation of `Al_2O_3` and `Cr_2O_3`, are -1596 kJ and -1133 kJ respectively.

A

`-2710` kJ

B

`+2730` kJ

C

`-463` Kj

D

`-1265` kJ

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