Me with these questions ! 1) a teacher shows the class a neutral atom of bromine that has an atomic number of 35 and has 45 neutrons. jackie said, "i think the atomic mass would be 45, because there are 45 neutrons and neutrons make up the mass of the atom" pauly said, "i think the atomic mass would be 80, because there are 45 neutrons and 35 protons. both of these have a mass of about 1." sam said, "there would be 45 electrons and 45 protons, because of the atomic number." who is correct? both sam and pauly are correct. only sam is correct. both sam and jackie are correct. only pauly is correct.
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Chemistry, 22.06.2019 05:30
Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage
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Chemistry, 22.06.2019 13:40
Can someone me with 6 to 10 plz this is for masteries test.
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Chemistry, 22.06.2019 15:00
Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.
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Chemistry, 22.06.2019 19:00
Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²
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Me with these questions ! 1) a teacher shows the class a neutral atom of bromine that has an atom...
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