Practice Polar Covalent Bonds And Electronegativity (4.2.2) - Unit 4: Chemical Bonding and Structure

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6 sample questions

Question 1.
Define electronegativity.
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Think about how strongly an atom pulls on electrons.
Question 2.
What characterizes a polar covalent bond?
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Consider the electronegativity difference between two atoms.
3Question 3.
What does electronegativity measure?
- A. Atomic mass
- B. Atomic radius
- C. Attraction of electrons
- D. Chemical reactivity
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Consider what property relates to how atoms interact with electrons.
4Question 4.
True or False: A bond with a Δχ > 1.7 is considered ionic.
- True
- False
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Recall the cutoff values for bond classification.
Question 5.
Given the electronegativities of the elements: C (2.55), O (3.44). Determine the bond type and discuss the implications on molecular properties.
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Think about how Δχ influences molecular interactions.
Question 6.
Analyze the dipole moment of the molecule CH₃Cl and determine its polarity.
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Consider the geometry of the molecule and how the dipole moments add.

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