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1 what is the shape around the nitrogen atom in nh3 draw the shape of the molecule2 draw the electron symbol for mg23
the vapor pressure of water at 20degrees celcius is 175 mmhg what is the vapor pressure of water over a solution
1 how many total moles of ions are released when each of the following samples dissolves completely in waterb 722 g of
sodium carbonate rm na2co3 is used to neutralize the sulfuric acid spill how many kilograms of sodium carbonate must be
calculate the enthalpy change for the thermite reaction 2als fe2o3s2fesal2o3s deltahrxn -850kj when 120 mol of
if 0150 mole of a nonvolatile non electrolyte solute is dissolved in 800 grams of water what are the ideal melting and
draw the condensation reaction that would form the dipeptide met-ile from the amino acids methionine and isoleucine
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if 250 ml of 451 m naoh solution is titrated with 253 m h2so4 identify the principal components ions molecules in the
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what is the maximum number of phases that can be in mutual equilibrium in a two-component
how many total moles of ions are released when each of the following samples dissolves completely in watera 0342 mol of
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calculate the grams of solid na2hpo4 that should be added to a 050m nah2po4 solution to make 50 ml of a buffer with a
assuming that the loss of ability to recall material is a first order process with a half- life of 45 days for the
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chlorine gas will react with nitrogen gas to yield ncl g at 500 k i mix 100 g of chlorine and 100 g of nitrogen in a 2
the strongest line in the visible region of the mercury spectrum has a wavelength of 4358nm what color does the light
in an experiment of the synthesis of cyclohexene cyclohexanol was dehydrated to form cyclohexenewrite balanced
the strongest line in the visible region of the neon spectrum has a wavelength of 6402 nm what color does the light