A sample of nitrogen gas is in a 65.0-L automobile air bag and has a pressure of 745mm Hg. What is the pressure of this sample of gas at the same temperature if it is placed into a 25.0-L bag?
(a) 1940 mm Hg
(b) 5.15 x 10-4 mm Hg
(c) 745 mm Hg
(d) 287 mm Hg

Jose and eric were given four samples in lab. the results of their analysis are shown in the table. based on the data they collected, which sample is most likely a metal?

In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.

How does kepler second law of planetary motion overthrow one of the basic beliefs of classical astronomy