Helium in a 100 L container at a pressure of 65.6 atm and temperature of 250 K is transferred to a container with a volume of 250 L and a temperature of 300 K. What is the new pressure?

The enthalpy of formation of water is -285.8 kj/mol. what can be inferred from this statement?

Name the element in group 17, period 2. (periodic table)

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.