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Suppose the color and shape of our currency was changed. How would these changes affect the role money played?
Why is it that when you look into any type of light for a long period of time that blotches of black appear when you look away
Its IR spectrum shows an intense band at 890 cm-1. Its 1H NMR spectrum has peaks at delta 1.74 (3 H, singlet), 2.11 (3 H, singlet), 2.27 (2 H, triplet, J=4.2 Hz), 2.57 (2 H, triplet, J=4.2 Hz), and 4.73 (2H, broad). Draw its structure in the windo..
A spherical water tank of radius R=4m is emptied through a small circular hole of radius r=.02m at the bottom. The top of the tank is open to the atmosphere. The instaneous water level h in the tank can be determined from the solution of the follo..
The difference in chemical potential between two regions of a system is +7.1 kJ/mol. By how much does the Gibbs free energy change when .10 mmol of a substance is transferred from one region to the other?
the specific heat of lead is 0.03 cals/J* degree C. If all the heat given up by the lead is used to melt the ice, how much ice is melted when the temperature drops to 0 degrees Celsius?
Detrmine What mass of lithium (in g) is needed to react completely with 57.9 mL of Nitrogen gas at Standard atmospheric conditions?
The standard cell potential for the reaction below is +0.63 V. The cell potential for this reaction is __________ V when Zn2+ = 3.5M and Pb2+ = 2.0x10^-4 M. Pb2+ (aq) + Zn (s) --> Zn2+ (aq) + Pb(s)
The solubility product of BaSO4 is 1.1 x 10-10. In a 0.1 M solution of Na2SO4 that is saturated with BaSO4, the Ba2+ concentration is closest to
How much heat is liberated at constant pressure when 2.35 g of potassium metal reacts with 5.68 mL of liquid iodine monochloride
A gas sample has an original volume of 680 ml when collected at 720mm and 28C. what will be the volume of the gas sample if the pressure increases to 820 mm and the temperature increases to 55C?
The PF5 molecule is known to have a trigonal bipyramidal shape. Explanation of its bonding includes all of the following EXCEPT: A. Bond Angles of 90 degrees
a volume of 200mlk of nitrogen is collected over water at a temperture of 24 degrees celcius and the atmospheric
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