A chemist conducts an experiment in which 2. 00 l of hydrogen gas is collected over water at 1. 00 atm and 298. 15 k. Remember the pressure due to the hydrogen gas is 0. 97 atm. Using the combined gas law, calculate the volume in l of the dry hydrogen gas at 273. 15 k and a pressure of 1. 00 atm.

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.