Name the following compound:
ch2 = ch – ch3
propyl
propane
1-propene
2-propyne

Acylinder is filled with 2.00 moles of nitrogen, 3.00 moles of argon and 5.00 moles of helium. if the gas mixture is at stp, what is the partial pressure of the argon

Which of the four hypothetical substances you investigated would be most harmful to living organisms? 50 points!

Scientists discovered fossils in several layers of the earth you see here. they found fossils of algae, snails, and clams in layer d. given that information, where do you think they found fossil evidence of simple land plants and amphibians?