A mixture of gases contains 1. 50 mol of o2, 0. 75 mol of he, and 2. 25 mol of n2. The total pressure exerted by the mixture is equal to 2. 50 atm. What is the partial pressure of the he?.

What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.

28. which is not a reason that water is used to store spent fuel rods from nuclear power plants? water increases the speed of the chain reaction in the fuel rods. water protects nuclear power plant workers from the high temperature and radiation of the fuel rods. water acts as a radiation shield to reduce the radiation levels. water cools the spent rods. salts action

Witch two conditions can limit the usefulness of the kinetic molecular theory in describing gas behavior?