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Explain relative electronegativities
An analysis of relative electronegativities would suggest that, because C is slightly more electronegative than H, a important amount of the positive charge resides on the hydrogens. Though, carbon does not have its full complement of valence electrons-that is, it is short of the octet by 2 electrons. In fact, both C and H share the positive charge about equally..
A hydrocarbon z with molecular mass 78 on combustion gave 3.384g of carbon (IV) oxide and 0.693g of water. Determine the molecular formula of Z and draw its structure. [H=1, C=12,
0.22(6.022)(10^23)
Name the most basic amino acid a) The most basic amino acid is arginine. It has the highest isoelectric point. b) Glycine is not chiral and therefore it cannot be optically
mathematical expression for conductivity of polymers
Calculate the molarmass of a nonelectrolyte that lowers the freezing point of 25.00g of water to -3.9 degrees C when 4.27 g of the substance is dissolved in the water.
In the chemical reaction, Al(s) + CuCl2(aq) --> Cu(s) + AlCl3(aq), why did the Copper turn green after being left for a day?
advantages and disadvantages of coulometer
The coordination number of Ni in the complex is 4, the configuration of Ni +2 , at first sight, shows that the complex is formed by sp 3 hybridization and it is paramagnetic an
The molecular formula of chloride of a metal M is MCl3 The formula of its carbonate would be: (1) MCO 3 (2) M 2 (Co
styx code of B4H10
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