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5 Written questions

5 Multiple choice questions

  1. mass is neither created nor destroyed during ordinary chemical reactions or physical changes
  2. designed the plumb pudding model which explained the distribution of electrons
  3. created data that better explains where electrons are located in the atom
  4. electrons moved in a wave function
  5. proposed the 1st atomic theory; law of multiple porportions

5 True/False questions

  1. Proustelectrons moved in a wave function


  2. Law of Definate PorportionIn a compound of 2 of the same element, the mass of the second element combines with that of the 1st element, and it's ration consists of small whole numbers


  3. Law of Multiple Porportionsregardless of the size of the sample, a chemical compound will always contain the same elements of the same porportions


  4. 5 postulates1.) all matter is composed of atoms
    2.) atoms of the same element are identicle
    3.)atoms can't be subdivided, created, nor destroyed
    4.) atoms of different elements combine to form compounds
    5.) during chemical reactions, atoms are combined, separated,or rearranged


  5. Lavoisierfound out that the total mass of reactants was = to the total mass of products; Law of Conservation


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