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SCSU CHE120 Final Exam(Professor Gregory Kowalczyk's General Chemistry I (CHE120) course at Southern Connecticut State University) fully solved$9.99
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SCSU CHE120 Final Exam(Professor
Gregory Kowalczyk's General Chemistry
I (CHE120) course at Southern
Connecticut State University)
What supports the existence of atoms?
(The Laws of Chemical Combination) - correct answer ✔✔Law of Definite Proportions and Law of
Conservation of Mass
Law of Definite Proportions - correct answer ✔✔In any chemical compounds the elements are always
combined in a definite proportion by mass
Law of Conservation of Mass - correct answer ✔✔Mass is neither lost nor created during a chemical
reaction
Dalton's Atomic Theory - correct answer ✔✔1. Matter is made up of atoms
2. All atoms of the same pure element have the same mass
3. Atoms of different elements have different masses
4. When elements combine to form compounds, they do so in whole number ratios of the atoms
5. Atoms do not change in a chemical reaction
What did J.J. Thompson discover? - correct answer ✔✔He discovered the electron by conducting his
Cathode Ray experiment
What did Robert Millikan discover? - correct answer ✔✔He discovered the charge of the electron by
conducting his Oil Drop experiment
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