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if a layer of peat beneath the glacial sediments of the last ice age has a carbon-14carbon-12 ratio that is 236 of that
compute co32- in a 0032 m solution of co2 in water h2co3 if all the co32- in this solution comes from the reaction
explain a mammoth skeleton has a carbon-14 decay rate of 049 disintegrations per minute per gram of carbon 049 dismin
at 800 am a patient receives a 56mg dose of i-131 to get an image of her thyroid if the nuclide has a half-life of 8
explain why can you conclude that the energy of an antibonding mo in h2 is elevate more than the energy of the bonding
explain if you dissolve 95 grams of an unknown salt into 13 grams of benzene c6h6 as well as find that the new freezing
in the molecule clf5 chlorine creates five covalent bonds consequently five of its seven valence electrons require
evaluate and contrast diethyl ether as a general inhalation anesthetic to modern gaseous ether general anesthetics used
the mercury level in the open to atmosphere end of the manometer was 525 cm lower than the hydrogen gas end the
explain what are the ir spectra for the three compounds that you would expect to find spice oil in each spectrum
compute the heat absorbed when 460 g of ice at-100 c is converted to liquid water at 850 c the specific heat of ice is
presuming merely translational degrees of freedom or freedom of motion explain what is the change in entropy s of the
suppose if the enthalpy of combustion for ethane -2834 kj explain how much ethane in grams must be burned in order to
explain what physical process takes place to the electrons of a pi bond when it absorbs a photon of ultraviolet
in 1913 henry mosley executed an experiment in which he irradiated neon atoms with high energy x-rays as well as looked
look at an electron affinity chart if we go to a planet where large deposits of element astatine at element 85 were
chlorine gas can be shaped commercially by passing an electric current through a concentrated solution of sodium
acrilan is an addition polymer made from the monomer named acrylonitrile cyanoethene demonstrate by means of an
utilize the chemical equation for the reduction of oxygen to define why corrosion occurs more slowly in dry
which provides better protection once more corrosion painting a metal or galvanizing a
zinc metal can be getting from zinc oxide by reacting the oxide with the element carbon the products of the reaction
while sodium acid is activated in an automobile airbag nitrogen gas and sodium are produced according to the equation
the development of mcri imaging technology is one useful spinoff of basic research into the structure of the atom
suggest an experimental process that could be used to synthesize 1 2-dimethylcyclopentene from 1
compute the thermal energy kt at room temperature in comparison with the band gap energy of a semiconductor with a band