Chemistry: Matter and its Study
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Questions and Answers

What is chemistry?

  • The study of outer space
  • The study of living organisms
  • The study of matter and the changes it undergoes (correct)
  • The study of computer science
  • Why is a basic understanding of chemistry important for subjects like biology?

  • To explore the ocean ecosystems
  • To understand the behavior of animals
  • To study the solar system
  • To comprehend chemical reactions within living organisms (correct)
  • What did Leucippus and Democritus infer about all living and inanimate things?

  • That everything is made of water
  • That everything is composed of indivisible and invisible particles called atoms (correct)
  • That everything is made of air
  • That everything is made of energy
  • What is matter?

    <p>Anything that has weight and can occupy space (B)</p> Signup and view all the answers

    Why does chemistry affect all aspects of life?

    <p>Because everything in the universe is made of matter (C)</p> Signup and view all the answers

    What is the process of the movement or flow of matter from a region of lower concentration to a region of higher concentration through a semi-permeable membrane?

    <p>Osmosis (C)</p> Signup and view all the answers

    Who discovered the phenomenon of Brownian motion?

    <p>Robert Brown (D)</p> Signup and view all the answers

    According to John Dalton's Atomic Theory, what is the nature of matter?

    <p>Matter is made up of indivisible atoms (B)</p> Signup and view all the answers

    Who identified the negatively charged electron in the cathode ray tube in 1897?

    <p>J.J. Thomson (A)</p> Signup and view all the answers

    Which scientist observed that rays emerged at right angles from the cathode and traveled in a straight line, and were deflected by an electrostatic field away from the negative plate?

    <p>J.J. Thomson (B)</p> Signup and view all the answers

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