6. Explain how you can use your knowledge of the atom's composition to determine the sign and magnitude of its charge (example: how does knowing the subatomic
particles of an atom help to determine that an atom will be +1).

Can someone me with questions 15 to 17 plz.

What is the percent by mass of magnesium sulfate in mgso4.7h2o

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.