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On a sunny spring day, Mr. Hane's family went to a zoo in his town. His daughter looked at an elephant, and she found that the mass of the elephant is 2019 kg. What is the weight of the elephant in Newtons? Use the acceleration due to gravity (g) as 9.8 meters per second squared.
Use specific details and examples from at least two of the selections to support your answer. Be sure to show how the selections are connected or alike.
Compute the hydroxide ion concentration in a NH 3 solution that is 0.091 M and 0.028 M NH 4 Cl. Kb of NH 3 is 1.8 x 10 -5 .
What do the density/potential plots demonstrate about bond order?
Describe a situation where a substance changed between the solid and liquid states or between liquid and gas states? Can you describe an example of when a substance changed between the gas and solid states? Let's see how many different examples we..
Table salt is comprised of sodium (symbol Na) and chlorine (symbol Cl) in a simple one to one ratio. It is written in chemical shorthand as NaCl. How would you go about finding approximately how much salt there is in our body?
My latest gas bill shows that natural gas costs $1.43 per 100 std ft3, while electricity costs $.19/KWh. Presuming that natural gas mostly CH4 produces heat equal to 890.35 KJ/mol while burned is it cheaper to heat with electricity or natural gas
What difficulties could you encounter trying to determine the cp of a chunk of metal that has a hollow center?
The synthesis of H2SO4 consists of three main chemical processes: (1) oxidation of S to SO2, (2) oxidation of SO2 to SO3, (3) the dissolving of SO3 in H2SO4 and its reaction with water to form H2SO4. If the third process produces 130kJ/mol, how mu..
15 grams of NaCl is dissolved completely in a beaker containing 200mL of water. What is the Na+ concentration in moles/liter in the final solution?
How does temperature affect the rate of biodegradation. How does temperature affect BOD5. How does temperature affect the ultimate BOD.
Please contraste the ideas of Prebisch, Frank, Reinert and various structuralists and dependency theorists with the conclusions
Calculate the solubility (in mol/L) of Co(OH)3 (Ksp = 3???10-43) in each of the following. (Assume that all solutions are at 25°C.)
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