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A region periodically experiences ample rainfall and ideal temperatures. If the population also experiences little disease at that time, the region is most likely to have a(n) _____.
A.increasing carrying capacity
B.increasing popularity
C.decreasing food supply
D.decreasing population
determine the structures of Compounds A, B, C, D, and E. Show calculations. Support all of your structure determinations. Student performed a sodium borohydride reduction experiment
what is the concentration ratio of the free (and potentially toxic) Pb2+ (aq) in the blood to the much less toxic Pb 2+ - EDTA complex?
A vessel contains 0.90g liquid H2O in equilibrium with water vapor at 30C. At this temperature, the vapor pressure of H20 is 31.82 torr. What volume increase is necessary for all of the water to evaporate'
Determine the delta H of decomposition of 1.000 mole of solid KCIO3 into solid KCI and gaseous oxygen.
what is the percent composition of the air mixture in the scuba tank
1. In which nations does it produce and market its products? 2. Describe the products of that company and its nature 3. Discuss any two types of international strategy the company seems to follow
Overdoses and death can easily occur in those smoking cigarettes with nicotine patches applied on their body. How many nicotine molecules are in 4.50 g.
Calculate the molar concentration of illinic acid and of its conjugate base illinate ion (in moles/L; M) in a 3 M illinate buffer at pH 7.5. The pKa of illinic acid is 6.7.
The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0031 M. Calculate the number of molecules inside the cell, which is 3.5 µm long and 1.4 µm in diameter.
Diphosphorous pentoxide(3.54g) has rected with ferric oxide (5.45g). What is/are the mass/masses of the product/products obtained per reaction assuming 85% yield
Is fission or fusion used in nuclear power plants? Which is more powerful? Which is a cleaner source of energy? Why do you think one used as an energy source in power plants while the other is not?
A sample of nitrogen occupies a volume of 546 mL at STP.What volume would nitrogen occupy at 177C under a pressure of 380 torr?
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