Chemistry for Engineers: Atoms and Molecules Quiz
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Questions and Answers

According to Democritus, what is the meaning of atomos?

  • Invisible
  • Eternal
  • Indivisible (correct)
  • Infinite

    • What does Dalton's Atomic Theory state about atoms of a given element?

  • They are not identical in size, mass, or chemical properties
  • They are identical in size, mass, and chemical properties (correct)
  • They are identical in size but vary in mass and chemical properties
  • They vary in size and mass but have similar chemical properties

    • What does the Law of definite proportion state?

  • Different compounds contain the same proportion of elements by mass
  • Different samples of the same compound contain varying proportions of its constituent elements by mass
  • Different compounds contain varying proportions of elements by mass
  • Different samples of the same compound contain its constituent elements in the same proportion by mass (correct)

    • What does the Law of multiple proportion describe?

    <p>If two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element are in the ratios of small whole numbers</p> Signup and view all the answers

    What does the Law of conservation of mass state?

    <p>Matter can neither be created nor destroyed</p> Signup and view all the answers

    According to Democritus, what is the meaning of atomos?

    <p>Indivisible particles</p> Signup and view all the answers

    What does the Law of definite proportion state?

    <p>Different samples of the same compound contain its constituent elements in the same proportion by mass</p> Signup and view all the answers

    What does Dalton's Atomic Theory state about atoms of a given element?

    <p>All atoms of a given element are identical, having the same size, mass, and chemical properties</p> Signup and view all the answers

    What does the Law of multiple proportion describe?

    <p>Two elements can combine to form more than one compound in ratios of small whole numbers</p> Signup and view all the answers

    What does the Law of conservation of mass state?

    <p>Matter can neither be created nor destroyed during a chemical reaction</p> Signup and view all the answers

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