Which measurement is best supported in units of microliters ? The mass of an atom of uranium
The volume of a water droplet in a cloud
The thickness of a strand of hair
The volume of the Atlantic Ocean

Idon’t understand this page, can someone ?

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 big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.