Polar Covalent Bonds and Bond Polarity
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Questions and Answers

In the lab assignment, students are asked to use VSEPR theory to predict and name the structure of how many molecules?

  • 5 molecules
  • 8 molecules
  • 6 molecules
  • 7 molecules (correct)
  • What is the purpose of completing Procedure A before coming to the lab according to the provided text?

  • To analyze molecular structure
  • To apply VSEPR theory (correct)
  • To predict bond angles
  • To name the molecules
  • Which section of the lab involves drawing molecules in 3D shapes?

  • Pre-lab predictions
  • Analyze and Evaluate (d,e) (correct)
  • Communication Application
  • Apply and Extend (g – k)
  • What does the 'Apply and Extend (g – k)' section of the lab primarily focus on?

    <p>Determining polarity</p> Signup and view all the answers

    How many components are used in the lab assessment to evaluate student performance based on the provided text?

    <p>3 components</p> Signup and view all the answers

    What is the total possible mark for the lab assignment according to the text provided?

    <p>46 marks</p> Signup and view all the answers

    What characteristic of a molecule determines whether it is polar or non-polar?

    <p>Shape of the molecule</p> Signup and view all the answers

    In the context of polarity, what does it mean when a molecule has a net dipole?

    <p>It is polar</p> Signup and view all the answers

    What happens when the sum of bond dipoles in a molecule is zero?

    <p>The molecule is non-polar</p> Signup and view all the answers

    How does Valence Bonding Theory explain the formation of covalent bonds?

    <p>By atomic orbital overlap with opposite-spin electrons</p> Signup and view all the answers

    Which theory starts with the atom's valence orbitals to form covalent bonds?

    <p>Valence Bonding Theory</p> Signup and view all the answers

    What do electron clouds represent in an atom or molecule?

    <p>Probability of finding an electron</p> Signup and view all the answers

    What term is used to describe the charge separation in a covalent bond?

    <p>Bond polarity</p> Signup and view all the answers

    How do you determine the type of bond between two atoms?

    <p>By calculating the electronegativity difference</p> Signup and view all the answers

    What is the general trend of electronegativity values as you move across a period in the periodic table?

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

    Which type of bond is characterized by an electronegativity difference greater than 1.7?

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

    What happens when a negatively charged balloon attracts the positive portion of a water molecule?

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

    In a polar covalent bond, where are the bonding electrons held closer?

    <p>One atom holds the electrons closer than the other atom</p> Signup and view all the answers

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