What is molecular polarity?
Molecular Polarity

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Chemistry
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11th - 12th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Molecular polarity refers to the distribution of electrical charge over the atoms in a molecule, resulting in a molecule having a positive and a negative end.
2.
FLASHCARD QUESTION
Front
What determines if a molecule is polar or nonpolar?
Back
A molecule is polar if it has a net dipole moment due to the arrangement of its bonds and the electronegativity differences between the atoms. Nonpolar molecules have an even distribution of charge.
3.
FLASHCARD QUESTION
Front
What is electronegativity?
Back
Electronegativity is the tendency of an atom to attract electrons in a chemical bond. Higher electronegativity means a stronger pull on shared electrons.
4.
FLASHCARD QUESTION
Front
Which molecule is the most polar: HF, H2, HCl, or HBr?
Back
HF is the most polar molecule due to the significant difference in electronegativity between hydrogen and fluorine.
5.
FLASHCARD QUESTION
Front
What type of bond is present in NaCl?
Back
NaCl has an ionic bond, formed by the transfer of electrons from sodium to chlorine, resulting in charged ions.
6.
FLASHCARD QUESTION
Front
How does the shape of a molecule affect its polarity?
Back
The shape of a molecule can affect its polarity; symmetrical shapes often lead to nonpolar molecules, while asymmetrical shapes can lead to polar molecules.
7.
FLASHCARD QUESTION
Front
What is the molecular geometry of methane (CH4)?
Back
Methane has a tetrahedral geometry, which is symmetrical and results in a nonpolar molecule.
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