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Write the lewis structure, prepare a VSEPR sketch, describe the geometry, prepare a VB sketch and describe teh bonding in the allene molecule H2CCCH2
if 69 kJ of heat is applied to a 1012 g block of metal, the temperature of the metal increasesby 11.4 degrees C. Calculate the specific heat capacity of the metal in J/g degrees C.
They are used as foaming agents, propellants, and refrigeration fluids. Freons are controversial because of the damage they do to the ozone layer in the stratosphere. A 5.87 g sample of a particular freon in a 3.45 L bulb at 25.00°C has a pressure..
calculate the specific heat of a metallic element if 478 J of energy are needed to raise the temp. of a 82.73 g sample from 25.0 C to 50.0 C. what is the most likely identity of the element
Which of the following describes what happens to the solubility of a slightly soluble ionic compound when a common ion is added to the solution
water expands when it freezes. How much work is done by 100g of water expanding as it freezes at 0 degrees Celsius and pushes back the wall of a pipe that exerts 1070 atm of pressure?
Acid catalyzed hydration of 3-hexene gives only one alcohol with the molecular formula C6H14O. A) Draw the structure of 3-hexene.
sketch a graph of potential energy versus dihedral angle about the c-c bond of 12-dichloroethane. show the energy
Nitrogen monoxide, a colorless gas, dissociates via an equlibrium process to form nitrogen gas and oxygen gas, when it is heated to very high temperatures.
A fuel gas containing 75% methane, 15% ethane and 10% propane by volume flows to a furnace at a rate of 1200m^3/hr at 15'C and 200kPa, where it is burned with 12% excess air. Calculate the required flow rate of air in SCMH
n2h4l o2g reverse reaction arrow n2g 2 h2olcalculate the k value associated with the reaction at 25 degrees celcius
Calculate the lime dosage required for soften- ing by selective calcium removal for the following water analysis. The dissolved solids in the water are CO2 = 17.6 mg/L, Ca2 + = 63 mg/L, Mg2 + = 15mg/L, Na + = 20mg/L, Alk (HCO3- )
what is the photoelectric effect? what can you conclude about the nature electrons in an atom from this phenomenon?
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