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Question: A NASA satellite showed that in 2003 the ozone hole was much larger than it was in 2002. The 2003 hole measured 1.04 X 10 7 mi2 in diameter, while the diameter of the 2002 hole was 6.9 X 106 mi2. Calculate the difference in size between the two holes in square meters.
What was the concentration (mol/L) of the permanganate solution. Submit answers correct to two decimal places.
The white powders are hopelessly mixed in a dustpan. You are promised a big fat raise if you can construct a flowchart that a less qualified chemist will follow to separate the three compounds
The volume of a gas-filled balloon placed underwater at a constant temperature will decrease as its depth below the surface of the water is increased.
The reaction between ethyl bromide (C2H5Br) and hydroxide ion in ethyl alcohol at 330 K, C2H5BR(alc) + OH-(alc) --> C2H5OH(l) + Br-(alc), is first order each in ethyl bromide and hydroxide ion.
for each of the following sets of pressurevolume data calculate the new volume of the gas after the pressure change is
If 329mL of hydrogen gas is collected over water at 25 Celcius at a total pressure of 748mm Hg , how many grams of { Zn reacted
The rate constant for the first-order decomposition of N2O is 3.40 s to the -1. What is the half-life of the decomposition
name 4 properties of a compound that is directly influenced by the polarity of the compond. and state the 2 most
Sterling Silver is 92.5% silver by mass. How many lbs of silver are there is a 45.0 Mg piece of sterling silver?
The Ksp of mag fluoride is 6.4x10 -9degree calculate the solubility (in g/l) of mag fluoride in water
A current of 5.80A passes through a CrNO3(2) soln for 1.70 hours. How much chromium is plated out of the soln
Hydrogen fluoride behaves as a weak acid in solution. Two equilibria influence which fluorine containing species are present in solution.
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