Molecular hydrogen is used as the “liquid fuel” (liquefied hydrogen) for rockets. How much water is generated from 1000 gallons of liquefied hydrogen? (1 gallon = 3.80 L. The density of liquefied hydrogen at 20 K is 71 g/L.)
a. 4860 kg
b. 2430 kg
c. 1220 kg
d. 135 kg
e. 17 kg
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