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Explain what is the minimum concentration (molality) of ethylene glycol that will protect the car's cooling system from freezing at 20.00°F?
Draw the Lewis dot structure of ethanol. Estimate the bond angles and the hybrid orbitals found for each carbon and for the oxygen.
Give a set of variables that is sufficient to specify the thermodynamic state a homogeneous pure substance
Calculate E°cell and indicate whether the overall reaction shown is spontaneous or nonspontaneous. O2(g) + 4H+(aq) + 4e- Picture 2H2O(l); E° = 1.229 V Al3+(aq) + 3e- Picture Al(s); E° = -1.662 V Overall reaction: 4Al(s) + 3O2(g) + 12H+(aq) ? 4Al3+..
Calculate brightness of a wavelength undergoing Rayleigh scattering.
The thermal decomposition of acetaldehyde, CH3CHO->CH4+ CO, is a second- order reaction. the following data were obtained at 518 degrees C.
The biochemical oxygen demand (BOD) is the capacity of organic and biological matter in natural water to consume oxygen. It is determined experimentally by measuring the oxygen concentration in a sealed sample before and after a 5-day incubation p..
Given non pourous material A having a density of 2.35 and non pourous material B having a density of 2.41 what is the theoretical density of material A+B when there is 75 weight % of material A and 25 weight % of material B when combined
This molecule is an implement in alkene chemistry that I made up. Devise a synthesis as of any compound containing 4 carbons or less.
in europe gasoline efficiency is measured in rm kml. if your cars gas mileage is 23.0 migal how many liters of gasoline
used the 8900 kilojoules you expend in energy in one day to heat 50000 of water at 20 what would be the rise in
a wing generates a lift l when moving through sea-level air with a velocity u. how fast must the wing move through the
for the reaction P4+S8=P4S10 what is the maximum amount of P4S10 which could be formed from 17.02 g of P4 and .128 mol of S8?
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