Polar Covalent Molecules: Water Chemistry
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Questions and Answers

What type of bond is formed between the oxygen and hydrogen atoms in a water molecule?

  • Ionic bond
  • Hydrogen bond
  • Polar covalent bond (correct)
  • Non-polar covalent bond

    • What is the result of the unequal sharing of electrons between oxygen and hydrogen atoms in a water molecule?

  • A strongly positive charge on oxygen and a strongly negative charge on hydrogen
  • A strongly negative charge on oxygen and a strongly positive charge on hydrogen
  • A slightly negative charge on oxygen and a slightly positive charge on hydrogen (correct)
  • A neutral charge on both oxygen and hydrogen atoms

    • What is the term for the attraction between the same kind of molecules?

  • Cohesion (correct)
  • Adhesion
  • Surface tension
  • Hydrogen bonding

    • What is the property of a substance that allows it to resist an external force?

    <p>Surface tension</p> Signup and view all the answers

    Why are water molecules attracted to other polar molecules?

    <p>Because of their polar covalent bonds</p> Signup and view all the answers

    What allows animals like water striders to walk on water?

    <p>The surface tension of water</p> Signup and view all the answers

    What is the reason for the unequal sharing of electrons in a water molecule?

    <p>Oxygen has a more positive nucleus than the hydrogen atoms</p> Signup and view all the answers

    What is the term for the attraction between different kinds of molecules?

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

    What type of charge does the oxygen atom in a water molecule have?

    <p>Slightly negative</p> Signup and view all the answers

    What is responsible for the formation of hydrogen bonds between water molecules?

    <p>The polar nature of water molecules</p> Signup and view all the answers

    What is the result of the cohesive nature of water molecules?

    <p>A strong surface tension</p> Signup and view all the answers

    What is the term for the attraction between water molecules and other polar molecules?

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

    What is the charge of the hydrogen atoms in a water molecule?

    <p>Slightly positive</p> Signup and view all the answers

    What is the reason for the formation of a relatively strong surface tension at the surface of water?

    <p>The cohesive nature of water molecules</p> Signup and view all the answers

    What is the result of the formation of hydrogen bonds between water molecules?

    <p>A strong surface tension</p> Signup and view all the answers

    What is the characteristic of water molecules that allows them to form hydrogen bonds?

    <p>Polar nature</p> Signup and view all the answers

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