Given the chemical reaction: C + 2H2 --> CH4 has a ΔH = −74.9 kJ, what...

Question

Question

Given the chemical reaction: C + 2H2 --> CH4 has a ΔH = −74.9 kJ, what is the energy change in kJ if 35.0 g of H2 is reacted with excess C?

A) -218

B)-650

C)-1.30 * 10^3

D)-2620

E)-5240

Answer is B, but I don't understand how

science chemistry

Answer 1

Answer #1

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Answer 2

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