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determine the kinetic energy of a 750 kg mass moving at 613 ms your answer should be in
when 356 g of an unknown hydrocarbon was dissolved in 125 g of benzene the freezing pointof the solution was found to
when the concentration of a in areaction was changed from 120 m to 0600m the half -lifeincreased from 3-00min to 60 min
carbon-carbon single bonds in organic molecules have energies about350 kjmol what is the corresponding wavelength could
an inorganic chemist studying the reactions of phosphorus halidesmixes 01050 mol of pcl5with 00420 mol of cl2 and00420
the atomic masses of lithium-6 759 and lithium-7 9241 are 60151 and 7016 amu respectively calculate the average atomic
sodium sulfide 117 g reacts with hydrochloric acid 167 ml 120 m to yield sodium chloride and hydrogen sulfide what is
a photon of wavelength 200 nm strikes the surface of a metal causing an electron to be ejected with kinetic energy of
what wavelength of light nm is required to eject an electron with a speed of 20 x 106nbspms from a metal with a
one liter of nitrogen n2 and one liter of carbondioxide co2 initially at one atmosphere pressure are forcedinto a
while heating your copper sulfur mixture the original crucible lid fell and was broken you replace the lid with another
a student is doing the experiment chemical formulas of copper sulfide by heating copper with excess of sulfur at very
what is an example of a cell diagram for a voltaic cell how do i calculate the standard cell potential for the example
the reaction of solid dimethylhydrazine ch32n2h2 and liquefied dinitrogen tetroxide n2o4 has been investigated as a
hydrazine n2h4 is dibasic and has kb1nbsp 335x10-7nbspand kb2nbsp 142x10-16 calculate the concentration
an electron is ejected from a metal with a velocity 778 x105 ms if the metal has a threshold frequency of 990 x1014 hz
what is the density in gml of a ball that has a mass of 221 ounces and a diameter of 204 inchesnbspwill it float if
barium iodate baio32 forms an equilibrium with is ions in solution how does adding additional barium to the solution
a dessert contains 13155nbspg of vanilla ice cream 90g of fudge sauce and 400nbspg of nuts what is the total weight in
what is the calculation of the new temperature of a gas sample has an original volume of 740 ml when collected at 710
what is the balanced equation what is the calculation of the number of moles and grams of al2so43 formed from 153 grams
calculate the dissociation constant of nh4ohaq if the degree of dissociation of 0006 molkg solution is 0053 and the
what is the calculation of kcnbspfor the following reaction if an initial reaction mixture of 0600 mole of co and 180
what is the subshell electron configuration for the ca20 atom which are valence electrons and how many valence
c-14 analysis of the shroud of turin has shown that approximately 93 of the 14c present in living matter is still