How does the water molecules in a raindrop falling today also could have been ingested by a dinosaur millions of years ago. summarize the evidence you have gathered to support your claim and explain your reasoning

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)

Which terms are used to identify pure substances

Find the mass, in grams, of 5.00*10^23 molecules of f2