Write the names and number of atoms of the elements each of these compounds are made up of. example HNO 3- 1 atom of Hydrogen+ 1 atom of Nitrogen+ 3 atoms of oxygen
SO 2- …………………………………………………………………………………………… ……
CaCO 3 -………………………………………………………………………………………… ……….
HCl-………………………………………………………………………………… ……………………..
ZnCl 2 -………………………………………………………………………………………… …………..
Fe 2 O 3 -………………………………………………………………………………………… …………

Compare and contrast the bohr model and the electron cloud models of the atom.

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

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.