Which has the most atoms a mole of h2o or a mole of ch4?

How do scientists think that gravity affected the formation of our solar system?

What does a numerical subscript following an element in a chemical formula mean?

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.