20. What do melting and boiling points (high vs low melting and boiling points) tell us about attractions between molecules? 21. What does the strength of attractions between molecules tell us about the presence of partial charges? 22. Define polarity in terms of strength of attractions and partial charges.

Chemistry for Engineering Students
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Chapter7: Chemical Bonding And Molecular Structure
Section: Chapter Questions
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Electronegativity and Polarity (Here's a link to an Electronegativity Chart)
18. What is electronegativity, and might differences in electronegativity help us determine if a
bond is polar or nonpolar (or ionic)?
20. What do melting and boiling points (high vs low melting and boiling points) tell us about
attractions between molecules?
21. What does the strength of attractions between molecules tell us about the presence of
partial charges?
22. Define polarity in terms of strength of attractions and partial charges.
26. Now let's model how water is able to dissolve salts such as NaCl. What components and
interactions should we include in our system?
Transcribed Image Text:Electronegativity and Polarity (Here's a link to an Electronegativity Chart) 18. What is electronegativity, and might differences in electronegativity help us determine if a bond is polar or nonpolar (or ionic)? 20. What do melting and boiling points (high vs low melting and boiling points) tell us about attractions between molecules? 21. What does the strength of attractions between molecules tell us about the presence of partial charges? 22. Define polarity in terms of strength of attractions and partial charges. 26. Now let's model how water is able to dissolve salts such as NaCl. What components and interactions should we include in our system?
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