Which of the following would have the greatest reaction speed? a. a reaction with solid reactants under low pressure and with high surface area. b. a reaction in cold temperature and high surface area with gaseous reactants. c. a reaction with liquids under high pressure and high surface area. d. a reaction with solids at high temperature and high surface area.

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.