Which of the following statements about the atom would dalton not agree with in the early 1800s?

atoms are the smallest particles of matter.

the mass of an iron atom is different from the mass of a copper atom.

nuclear reactions can convert mass to energy.

a compound is made of two or more different atoms from different elements.

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.