The reaction: 2C + 3H2 C2H6 + 84.0 kJ,is
A) endothermic.
B) exothermic.
C) isothermic.
D) protothermic.
Correct Answer:
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A)2 and 3 are subscripts
B)2
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A)butane.
B)propane.
C)octane.
D)methane.
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