Why is dna a useful evolutionary clock?

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

what is your question? collegechemistry 5+3 pts 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.