In a mixture___ a. each substance keeps its individual properties

b. the substances are combined in a set ratio

c. atoms of the substances form molecules

d. chemical bonding occurs between substances

Kc = 0.040 for the system below at 450oc. if a reaction is initiated with 0.40 mole of cl2 and 0.40 mole of pcl3 in a 2.0 liter container, what is the equilibrium concentration of cl2 in the same system? pcl5(g) ⇄ pcl3(g) + cl2(g)

The excretory system,need answers for all: )

What is the atomic number of an atom that has 6 protons