The reaction scheme of the elimination of iodine from organic molecule is ri+hi - rh+i2 where r is an aliphatic radical the reaction is of the 2nd order, the rate constant is k-1.9x10-1 mot dmsat 25 °c and the activation energy of the reac- tion is e = 106 kj mot31) calculate the rate constant and 32) how much the reaction is accelerated, if temperature is raised from 25°c to 35 °c 31 a) k=7.6x10.1 mot dml 6)k=2.8x10-"mot dmsc) k=8.8x10-mor dm d) t = 6.4x10- mot' dms 32) a) 15 times b) 4 times c) 46000 times d) notg

The isotonic saline solution described in part a is connected to an unknown solution via a semipermeable membrane, the unknown solution level drops. based on this information, what can be said about these two solutions?

Vi limitens. vastery test select the correct answer. which statement explains why large atoms are more reactive than small atoms? a. large atoms have valence electrons farther from the nucleus and lose them more readily. b. large atoms have greater ionization energy, which they can utilize during a reaction. c. large atoms have a greater number of electrons that they can lose during a reaction. d. large atoms have more energy levels, so they have more energy to pass on in a reaction. reset next

[ou.03jthe pictures below show the wavelengths and intensities of electromagnetic radiations emitted by three stars, star 1, star 2, and star 3. intensity intensity- intensity- 1000 3500 6000 8500 11000 wavelength (a) star 1 1000 3500 6000 8500 11000 1000 3500 6000 8500 11000 wavelength (a) wavelength (a) star 2 star 3 which of these statements is correct about the color of the three stars? star 2 is white in color o star 2 is yellow in color star 1 and star 3 are yellow in color star 1 and star 3 are white in color