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Which one of the following processes involves a decrease in entropy? A) the decomposition of NH3(g) to H2(g) and N2(g B) The condensation of steam to liquid water C) The sublimation of CO2 from solid to gas D) The evaporation of ethanol E) The dissolution of NH4NO3
5.97 g of CuNo3 is dissolved in water to make a 0.860 M solution. What is the volume of the solution
2N2H4 (aq) + H2SO4 (aq)--> 2 N2H5+So4^-2(aq) how many grams of hydrazine can be consumed by 250.ml of 0.225 M H2SO4?
A plot of k versus 1/T has a slope of -7, 445. What is the E_a (energy of activation) for this reaction? OPTIONS: A. 90.79 kJ/mol B. 895.5 kJ/mol C
what does the product and balanced equation of NaOH+NH4HCO3 come out to be? Also what would the product and balanced equation of CuSO4 + a nail be and NH4HCO3 + heat be
Some sample solution was spilled into the outside of the graduated cylinder while preparing the sample, and before determining the volume.
Write a mechanism for the reaction of an alkyl halide with alcoholic silver nitrate which demonstrates the type of substituition which occurs. Explain how this mechanism accounts for the relative rate of reactivity for 1 degree, 2 degree and 3 deg..
Based on the solubility rules, which one of these is insoluble in water?
The Ka for cacodylic acid (C2H7AsO2) is 5.37 x 10-7. An amount (0.1035 g) of this compound is added to 0.5 L H2O. What is the resulting pH of this solution
it has been estimated that halleys comet has a mass of 1 x 110 tons. This comet is estimated to lose 1x 80 tons of material each time its orbit brings it close to the sun. With an ordital period of 76 years, what is the maximum remaining life span..
A voltaic cell SIMILAR to that shown in Figure 20.5 is constructed. One electrode compartment consists of a silver strip placed in a solution of AgNO3,
What is the pH of the solution after 50.0 mL of base has been added? What is the pH of the solution at the equivalence point
Gas phase irridation of 2-pentanone produces acetone and ethylene in about 90% yield along with 10% 1-methylcyclobutanone. Accoutnt for the formation of these three products
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