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Condensation polymers are made using a monomer with two functional groups which split off as the remainder of the two monomers are joined together. Often the small molecule eliminated in the process is water. a. False b. True
Write a balanced chemical equation, including physical state symbols, for the combustion of gaseous methan into gaseous
Estimate Keq for the following equilibria at 425 K. Note that H2O is present as a gas rather than as a liquid. R = 8.3149 J/(mol*K).
Lewis Dot structure and identify molecule shape, the hybridization on the central atom, and whether the molecule is polar or non
The burning of sufficient magnesium in oxygen to form 2.00 grams of magnesium oxide results in the liberation of 30.1 kj.
What are these types of electrons called? Show the valence electrons in a molecule of water, and tell which ones are which.
Determine the volume, in mL, of 2.00 M HC2H3O2 required to prepare 100 mL of a 0.30 M HC2H3O2 solution?
Calculate the equilibrium constant Ksp for Mg(OH)2 (s) at 25 degrees celcius. Is the dissolution of Mg(OH)2 endothermic or exothermic
The blue color of the sky is due to the scattering of sunlight by the molecules in the air. The blue light has a frequency of about 7.5 x 10^14 Hz.
If the solution has the same density and specific heat as water, what is ?H for this reaction (per mole of H2O produced)? Assume that the total volume is the sum of the individual volumes.
What is the change in enthalpy when 18.4 g of steam at 100?C is converted to liquid water at the same temperature and pressure? The heat of vaporization of water is 40.7 kJ/mole. Answer in units of kJ.
Consider a 1.00-L solution containing 85.5 g Al2(SO4)3 (FW = 342.15) and 21.3 g Na2SO4 (FW = 142.06). What are the molar concentrations of aluminum, sodium, and sulfate ions, respectively.
Why is it important to use a large excess of sodium borohydride when doing a reduction in aqueous ethanol. Consider what reaction might occur between water and sodium borohydride.
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