Problem: Given the chemical reaction: C + 2 H 2 → CH4 has a ΔH = −74.9 kJ how much energy in kJ changes if 35.0 g of H2 is reacted? A) −218         B) −649           C) −1.30 x 103           D) −2620           E) −5240  

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Given the chemical reaction: C + 2 H 2 → CH4 has a ΔH = −74.9 kJ how much energy in kJ changes if 35.0 g of H2 is reacted?

A) −218        

B) −649          

C) −1.30 x 103          

D) −2620          

E) −5240

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