A kilogram of hydrogen delivers about ___ times more energy than a kilogram of carbon.

A kilogram of hydrogen delivers about ___ times more energy than a kilogram of carbon.

A kilogram of hydrogen delivers about ___ times more energy than a kilogram of carbon.




A. 4.28
B. 4.25
C. 4.26
D. 4.23
E. 4.27




Answer: B


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