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explain how much heat is produced in burning 10 of ethylene under standard conditions if reactants and products are
bro2- depicts the molecule by placing atoms on the grid and connecting them with bonds comprise all lone pairs of
a 911-g piece of zinc metal is dissolved in 75-ml of 35 hcl and hydrogen gas is evolved the exact amount of 50 naoh
compute the bicarbonate and carbonate alkalinities in mgl as caco3 of the water having a total alkalinity of 2330mgl as
a which element in each of the subsequent sets would you expect to have the lowest third ionization energy
a in the ground state of an atom of silver ag define how many electrons will there be with the quantum number l 1 the
suppose you mix 20 ml of 0010 m mgcl2 with 20 ml of 00020 m na2co3 describe will magnesium carbonate mgco3 precipitate
the heisenberg uncertainty principle also holds for energy and time two complimentary variables how well can we know
how many carbon atoms are in 26 mug of graphite pure
a 100 mole sample of he is placed in an empty vessel to create a pressure of 500 atm a 480g quanity of methane ch4
explain the average osmotic pressure of blood versus water is 760 atm at temp t310k compute the total solute
a explain why must the slit width of a prism monochromator be varied to provide constant effective bandwidths but a
compute the change in internal energy e for a system that is giving off 250 kj of heat also is changing from 1200 l to
explain ammonia and hydrogen chloride gases react to form solid ammonium chloride a 100 l reaction flask contains
liquid nitrogen trichloride is heated in a 211-l closed reaction vessel until it decomposed wholly to gaseous elements
explain a sample of an unknown gas effuses in 109 min an equal volume of h2 in the same apparatus under the same
a 454 g block of lead is at an initial temperature of 225 degrees celsius define what will be the temperature of the
state a 1300 ml sample of a solution that is 29times10-3 m in agno3 is mixed with a 2200 ml sample of a solution that
state cfcs such as cf2cl2 are refrigerants whose use has been phased out for the reason that their destructive effect
the solubility of l-aspartic acid an amino acid in water has been resolute as follows all values are grams of aspartic
describe the major e2 reaction product formed when trans-1-chloro-2-ethylcyclohexane reacts with hydroxide ion in
complete as well as balance the displayed half reaction in acidic aqueous solution taking into account the
explain what observed rotation is expected when a 114 m solution of r-2-butanol is mixed with an equal volume of a 0570
state substituting two hydrogen atoms on the benzene ring with methyl groups write line-angle formulas of all
compute the ratio of the masses of the buffer components nh3nh4cl necessary to make the buffer with a ph of