How many moles are there in
8x10^24 Cl20 molecules?

Use examples from the article to explain one positive and one negative effect that chemistry has had on society

What provides structure to the human body?

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)