An airplane flies 1300 miles in 2 1/6.What is it average speed in miles per hour

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

If a molecule with a molecular formula of c13h18 is treated with an excess of h2 in the presence of finally divided pt metal under conditions required for maximum hydrogenation of the molecule to give a molecule with a formula c13h24, how many rings are in the molecule?

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?