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Which of the following statements is incorrect about benzene?
a. It has delocalized electrons.
b. The carbon-carbon bond lengths are all the same.
c. The carbon-hydrogen bond lengths are all the same.
d. All twelve atoms lie in the same plane.
e. All of the carbon atoms are sp hybridized.
What is the wavelength (in nm) of the line in the spectrum of the hydrogen atom that arises from the transition of the electron from the orbital with n =3 to the orbital
Which of these given nutrients is likely to limit production if the light supply is adequate and there is no nitrogen fixation?
What is the change in average specific (kJ/kg) enthalpy of this system if the quality increases by 0.71 at a constant pressure of 10 bar?
At equilibrium the vessel is found to contain 0.566 g of H2. Calculate the equilibrium concentrations of H2, Br2, and HBr and Calculate Kc.
A 4.05 g sample of a compound containing only C, H, and O was burned completely. The only combustion products were 10.942 g CO2 and 4.476 g H2O. What is the empirical formula of the compound.
Assuming the solution has a heat capacity of 4.18 J/°C·g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
What mass in grams of carbon dioxide is produced if 85.0 mol of magnesium carbonate, MgCO3, are heated and allowed to decompose according to this equation? MgCO3(s)--> MgO(s) + CO2(g)
How many liters of flouridated drinking water would a 70 kg person have to consume in one day to reach this toxic level? How many kg of sodium flouride would be needed to treat a 7.49x 10^6 -gal reservior?
A hydrogen molecule in it's ground vibrational state with KE=10eV coollides with heavy atom metal surface and no energy is transferred to the surface. The surface can be modeled as an infinite potential wall.
Show whether or not precipitate will form in this process when the Ksp of Pbl = 9.8*10 -9
Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution contatining 0.070 lysine HL 0.055 mol aspartic acid H2A and 0.0080 mol NaOH.
which effect on atomic size is more significant, the nuclear charge (p+) or the energy level that the eleectrons are filling explain why.
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