A chemist prepared a sealed tube with 0.85 atm of PCl5 at 500 K. The pressure increased as the following reaction occurred. When equilibrium was achieved, the total final pressure in the tube had increased to 1.25 atm. Calculate Kp. PCl5(g) ↔ PCl3(g) + Cl2(g)

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

1) according to the law of conservation of mass ,in all chemical reactions total mass is unchanged

Bis is the