The total pressure of an 02-Ar-He gas mixture is 755 mmHg. If the partial pressure of Ar is 174 mmHg and the partial pressure of He is 389 mmHg,
then the partial pressure of 02 is what?

Your roll: experienced electron speech is adressed to: a new "freshman class" of electrons job: write a speech task: you are to pretend that you are giving a speech to a new group of electrons. be sure to mention their placement in an atom, their charge, and their role in chemical bonding (ionic and covalent) be specific!

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

Using data from seismic waves, geologists have learned that earth’s interior is made up of several