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Can you discuss factors that cause the surface salinity of Chesapeake Bay to be greater along its east side, and why periods of summer anoxia in deep water are becoming increasingly severe with time? Answer must be 75-100 words.
Problem- A backpacker collects snow at 0 C, and places it in a cooking pot on a camp stove. It takes 643 kj of heat energy to melt the snow and bring the water to boiling.
The ozone in the ozone layer absorbs UV light between 200 and 300 nm. Ozone is a compound with the chemical formula CO2. In the Earth's atmosphere, ozone exists only in the ozone layer.
how many possible trisubstituted derivatives c6h3x2y can be obtained from the meta disubstituted benzene c6h4x2? (ignore directive effects of the substituents x and assume that all positions on the ring are accessible to the reagent y+).
Copper has a density of 8.900 g/cm^3. How many centimeters cubes would be displaced If 35 kg of copper pellets were poured into a barrel of water
Determine ΔHvap for a compound that has a measured vapor pressure 24.3 torr at 273 K and 135 torr at 325 K: 1. 34 kJ/mol, 2. 13 kJ/mol, 3. 24 kJ/mol, 4. 79 kJ/mol, 5. 41 kJ/mol
If a 1.84 g sample of an alkaline Earth metal hydride was treated with an excess of dilute hydrochloric acid as well as the resulting gas was collected in a 1.000 L container at 20 C. The measured pressure of the gas was 750.0 mmHg.
A 32.6 iron rod, initially at 22.3, is submerged into an unknown mass of water at 63.3, in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 59.1. What is the mass of the water
What was the most surprising fact you learned from reading The Disappearing Spoon? Were there any elements or scientists you thought you knew a lot about, but then discovered you didn't?
What five items must you consider when selecting the size and range of the scale units for the x- and y-axis
You have 200ml of a solution which is 0.2M NH3 and contains 0.23grams of NH4Cl. a. What type solution is it. b. What is the pH of the solution
According to the equation above, the greatest mass of Ag(s) (molar mass 108 g/mol) that can react with 5.30mL of Br2 (molar mass 160g/mol, density 3.00g/mL) is closest to?
Which of the following would you expect to be a molecule and which would you expect to be part of an ionic solid? NO, CO, CaO, NaF, RbF, SrS, HF, NaCl. Magnesium fluoride contains only magnesium and fluorine.
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