the partial pressure if Ch4, N2, and O2 in a sample of gas were found to be 163 mmHg, 475 mmHg, and 551 mmHg. Calculate the mole fraction of oxygen

In a sample of oxygen gas at room temperature, the average kinetic energy of all the balls stays constant. which postulate of kinetic molecular theory best explains how this is possible?

Fossil fuels are organic compounds that are made from

Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.