Chemistry: Ions and Molecules
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Questions and Answers

What is the defining characteristic of a cation?

  • It has more electrons than protons
  • It has more protons than electrons
  • It carries a net negative charge
  • It carries a net positive charge (correct)

    • Which type of compound exhibits high boiling and melting points, solubility in water, and good conductivity?

  • Covalent compounds
  • Polyatomic ions
  • Ionic compounds (correct)
  • Diatomic molecules

    • What is the oxidation number or state defined as?

  • The total number of protons in an atom
  • The total number of neutrons in an atom
  • The number of valence electrons in an atom
  • The total number of electrons gained or lost by an atom (correct)

    • Which compound is a nonpolar covalent bond most likely to be found in?

    <p>$CO_2$ (Carbon dioxide)</p> Signup and view all the answers

    What defines a polyatomic ion?

    <p>It consists of two or more types of atoms</p> Signup and view all the answers

    What is the atomic number of carbon?

    <p>6</p> Signup and view all the answers

    Which branch of chemistry studies carbon-containing compounds?

    <p>Organic Chemistry</p> Signup and view all the answers

    What did Friedrich Wohler find in 1828?

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

    What is the exclusive composition of hydrocarbons?

    <p>Carbon and Hydrogen</p> Signup and view all the answers

    What is the name of the purest form of carbon?

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

    What is the study of past human activities using carbon technology called?

    <p>Carbon Dating</p> Signup and view all the answers

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