Among the sunstances that react with oxygen and that have been cosidered as potential rockets fuels are diborrane [b2h6, produces b2o3 and h2o], methane[ch4, produces co2, and h2o] and hydrazine[n2h4, produces n2 and h2o]. on the basis of the heat released by 1.00 g of each substance in its reaction with oxygen, which of these compounds offers the besst possibility as a rocket fuel? the hof of b2h6, ch4 and n2h4 may be found in appendix g

In november 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. the chunk of ice was estimated to be 98 mi long, 25 mi wide, and 750 ft thick. a typical backyard swimming pool contains about 24,000 gallons of water. how many of these pools could you fill from the water in this iceberg? (assume the iceberg is a rectangular solid of the above dimensions and consists of water only). express answer in scientific notation.