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if a sample of he effuses at a rate of 30 mol per hour at 45 degrees c, which of the gases below wil effuse at approx. one-half the rate under the same conditions?
a. ch4
b. o3
c. n2
d. h2

How many grams of n2h4 will be consumed by 23 g of n2o4

What overall charge must all compounds have

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?