Van der Waals Equ 12. Use Van der Waals equation to find the pressure in
kilopascals of 2 moles of chlorine gas (Cl2) at 253 K placed in a
container with a volume of 22.4 liters.

Calculate the number of molecules present in 0.750 mol of mgo.

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4

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.