Rutherford investigated atoms by firing small, positively charged particles at a thin sheet of gold foil. what results would he expect to see if he believed thomson’s model of the atom to be correct? all of the particles would bounce back from the front of the foil because the atom was a dense, solid ball of matter. most of the particles would pass straight through the foil because the atom was mostly the empty space in the electron cloud. most of the particles would pass through at a small angle because the atom is mostly empty space, but with a massive, dense, positively charged center. most of the particles would pass through with a few moving at small angles because the atom was a low-density, positive material with electrons in it.

Problem #3 (ch. 1, problem 15)the ideal gas law provides one way to estimate the pressure exerted by a gas on a container. the law isí‘ťí‘ť=푛푛푛푛푛푛푉푉mo re accurate estimates can be made with the van der waals equationí‘ťí‘ť=í‘›í‘›í‘›í‘›í‘›í‘›í‘ ‰í‘‰â’푛푛푟푟â’푞푞푛푛2í‘ ‰í‘‰2where the term nb is a correction for the volume of the molecules and the term an2/v2is a correction for molecular attractions. the values of a and b depend on the type of gas. the gas constant is r, the absolutetemperature is t, the gas volume is v, and the number of moles of gas molecules is indicated by n. if n = 1 mol of an ideal gas were confined to a volume of v = 22.41 l at a temperature of 0â°c (273.2k), it would exert a pressure of 1 atm. in these units, r = 0.0826.for chlorine gas (cl2), a = 6.49 and b = 0.0562. compare the pressure estimates given by the ideal gas law and the van der waals equation for 1 mol of cl2 in 22.41 l at 273.2 k. what is the main cause of the difference in the two pressure estimates, the molecular volume or the molecular attractions?

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

The number at the end of an isotope’s name is the number.