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.

Layer r contains a well-known index fossil that is 100 million years old. based on this information and the principle of superposition, a. layers t and m are older than 100 million years, and layers x and g are younger than 100 million years. b. layers t, m, x, and g are all older than 100 million years. c. layers t and m are younger than 100 million years, and layers x and g are older than 100 million years.