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Why are the melting points of sodium halides very high and the melting points of silicon halides very low? Response should include descriptions of the bonding and refernce to the attractive forces that must be overcome in the two types of compounds.
A 28.0-g sample of water at 250. K is mixed with 47.0 g water at 300. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
derive the rate equation in terms of [NO] and [O2] as well as k ( Assume N2O2 to be in a steady state )
what mass of calcium carbonate is required to react with 137.8 mL of a 0.6943 M sulfuric acid solution?
Calculate the molar solubility of bbarium sulfate, BaSO4, in 0.010 M Sodium Sulfate, Na2SO4, solution at 25C. Compare this to the solubility of BaSO4 in pure H2O. What is the common ion?
When performing your experiment, you add your first drop of oleic acid/benzene solution, and a lens forms immediately.
Calculate the change in chemical potential of the 12g of carbon dioxide after being completely released from the cartridge at room temperature.
Iron has a reported average atomic mass of 55.85 amu. If iron has two isotopes, one of which has 29 neutrons and an isotopic abundance of 57.50%, what is the mass of the other isotope?
Weight and volume measurements on a sample of pure cadmium showed its density to be 521 lb/ft3 is this a 3.5% error?
What hybridization would you expect for the indicated (bold) atom in each of the following molecules?
A mixture of twenty five grams of potassium nitrate(KNO3) and two grams of CuSO4*5H20 with 11.5 grams of water at 100 degree celcius temperature, 15 g ramsof water are mixed.
What mass Ag will be deposited at the cathode during electrolysis if a current of 30mA passes through an aqueous solution containing Ag
Consider a cylindrical container partially filled with ethanol (C2H6O). Using the model in which ethanol vapor pressure is a result of equilibrium between the rate of ethanol evaporation and condensation.
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