General Chemistry 1 Review Exam S.Y 2023-2024
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Questions and Answers

What was Democritus’ atomic theory based on?

  • Observation using a microscope
  • Mathematical calculations
  • Philosophical reasoning (correct)
  • Experimental evidence
  • According to Democritus, how do atoms differ from one another?

  • Mass, size and shape (correct)
  • Size only
  • Mass only
  • Shape only
  • What was the primary aim of alchemists in their pursuit of the philosopher’s stone?

  • Invisibility
  • Flight
  • Transmutation of base metals into gold (correct)
  • Immortality
  • Which significant concept did alchemists contribute to early chemistry?

    <p>Transmutation of Elements</p> Signup and view all the answers

    What did John Dalton propose about atoms?

    <p>They are indivisible particles</p> Signup and view all the answers

    According to Dalton, atoms of different elements have?

    <p>Same Mass</p> Signup and view all the answers

    Which of the following ancient Greek philosophical schools focused on materialism and atomism, to which Democritus belonged?

    <p>Stoicism</p> Signup and view all the answers

    Who coined the statement 'To understand the very large, we must understand the very small'?

    <p>Democritus</p> Signup and view all the answers

    What was Aristotle's idea about atoms?

    <p>Every substance had its own kind of 'seeds' that clustered together to make the substance, much as our atoms cluster to make molecules.</p> Signup and view all the answers

    What did Dalton propose about the Conservation of Mass in Chemical reactions?

    <p>Mass is always conserved</p> Signup and view all the answers

    Who proposed the idea of the nucleus in an atom?

    <p>Ernest Rutherford</p> Signup and view all the answers

    What did Rutherford’s gold foil experiment reveal about the atom?

    <p>Atoms are mostly empty space with a small, dense nucleus</p> Signup and view all the answers

    Which particle was discovered by J.J Thomson?

    <p>Electron</p> Signup and view all the answers

    According to Democritus, what is the fundamental nature of matter?

    Signup and view all the answers

    'Atomos' is a term used by Democritus for what fundamental particles?

    Signup and view all the answers

    Which of the following is NOT a property of atom according to Democritus?

    <p>The heart is the seat of desire.</p> Signup and view all the answers

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