What is a covalent bond?
Lewis Structures

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Chemistry
•
10th Grade - University
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A covalent bond is a bond that shares electrons between nonmetals.
2.
FLASHCARD QUESTION
Front
What is the Lewis Dot Structure for ammonia (NH3)?
Back
The Lewis Dot Structure for ammonia (NH3) shows a nitrogen atom in the center with three hydrogen atoms bonded to it, and a lone pair of electrons on the nitrogen.
3.
FLASHCARD QUESTION
Front
What is the correct Lewis structure for water (H2O)?
Back
The correct Lewis structure for water (H2O) has an oxygen atom in the center with two hydrogen atoms bonded to it, and two lone pairs of electrons on the oxygen.
4.
FLASHCARD QUESTION
Front
How many valence electrons are available for bonding in the sulfate ion (SO4^2-)?
Back
There are 32 valence electrons available for bonding in the sulfate ion (SO4^2-).
5.
FLASHCARD QUESTION
Front
What is a valid Lewis structure for hydrogen cyanide (HCN)?
Back
A valid Lewis structure for hydrogen cyanide (HCN) has a hydrogen atom bonded to a carbon atom, which is triple-bonded to a nitrogen atom.
6.
FLASHCARD QUESTION
Front
What are valence electrons?
Back
Valence electrons are the electrons in the outermost shell of an atom that are available for bonding.
7.
FLASHCARD QUESTION
Front
How do you determine the total number of valence electrons in a molecule?
Back
To determine the total number of valence electrons in a molecule, add the valence electrons of each atom in the molecule.
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