Practice Problems Unit 4 Lesson 2
Flashcard
•
Chemistry
•
10th - 12th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the Lewis Dot structure?
Back
A representation of the valence electrons in a molecule, showing how they are arranged among atoms.
2.
FLASHCARD QUESTION
Front
How many bonding pair electrons are in SF4?
Back
4 bonding pair electrons.
3.
FLASHCARD QUESTION
Front
What is the molecular shape of a molecule with 3 bonded atoms and 2 lone pairs?
Back
T-Shape.
4.
FLASHCARD QUESTION
Front
What is the predicted molecular geometry of BrF3?
Back
T-shaped.
5.
FLASHCARD QUESTION
Front
What does it mean for a molecule to have polar bonds but be nonpolar?
Back
The molecule has polar bonds due to differences in electronegativity, but its symmetrical shape cancels out the dipoles.
6.
FLASHCARD QUESTION
Front
How many lone pair electrons are in PCl5?
Back
0 lone pair electrons.
7.
FLASHCARD QUESTION
Front
What is the significance of lone pairs in molecular geometry?
Back
Lone pairs occupy space and can affect the shape of the molecule, influencing bond angles.
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