Dr. S. M. Condren Polonium-210 Poisoning #atoms Po 210 = (1.0 gPo 210 Cl 2 )(1g/10 6 g) (6.02x10 23 atoms/mol) (1mol/280gPoCl 2 ) = 2.2x10 15 atoms t 1/2.
Pg class20-water's unique, hydro cycle
Our environment
Water’s life supporting properties
Water crisis
Juneau County Dive Team - Ice Safety
Properties of Water. Objectives Describe the structure of a water molecule. List and describe water's unique properties. Distinguish between an acid and.
Chemistry. EVERY CHLORINE ATOM HAS 17 PROTONS, WITHOUT EXCEPTION, –HOWEVER, NOT EVERY CHLORINE ATOM HAS 18 NEUTRONS. –ATOMS WITH THE SAME NUMBER OF PROTONS.
Why Study Chemistry in Biology?. Banana Cell with Starch Granules.
Biogeochemical Cycles. Objectives: Identify and describe the flow of nutrients in each biogeochemical cycle. Explain the impact that humans have on.
Chapter 4 Biogeochemical Cycles. What IS a “biogeochemical cycle”? BIO = “life” GEO = “earth” CHEMICAL = “elements – C, O, N, P, S a cycling of.
