What evidence of a chemical reaction might you see in rusting of an iron nail

Review the branily terms and services guides well u know what i never did so go have a nice ice cream sunday

Find the mass in grams of 1.37x1020 particles of h3po4

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.