Questions and Answers
In the model of a molecule of ammonia, NH3, how many covalent bonds are represented?
3 covalent bonds
For two nitrogen atoms to form a stable molecule, N2, how many electrons would have to be part of covalent bonds?
6 electrons
How many covalent bonds are there in one molecule of carbon dioxide, CO2?
4 covalent bonds
Which of the following images represents a stable molecule of bromine, Br2?
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Which of the answer choices shows the correct Lewis dot diagram for hydrogen cyanide, HCN?
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Study Notes
Covalent Bonds Overview
- Ammonia (NH3) contains 3 covalent bonds formed between nitrogen and hydrogen atoms.
- A stable nitrogen molecule (N2) requires the participation of 6 electrons in covalent bonds between two nitrogen atoms.
- Carbon dioxide (CO2) is characterized by 4 covalent bonds, formed between the carbon atom and two oxygen atoms.
Bromine and Diatomic Molecules
- Bromine, a halogen, can form stable diatomic molecules, exemplified by Br2, which involves sharing electrons between two bromine atoms.
- The depiction of a stable bromine molecule is represented in a specific diagram (Diagram B).
Hydrogen Cyanide Composition
- Hydrogen cyanide (HCN) is a toxic compound consisting of one hydrogen atom, one carbon atom, and one nitrogen atom.
- The correct Lewis dot diagram for hydrogen cyanide is depicted as Diagram D, illustrating the arrangement of electrons in the molecule.
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Description
Test your understanding of covalent bonds with these flashcards. From the structure of ammonia to the bonding in nitrogen and carbon dioxide, this quiz covers fundamental concepts in molecular chemistry. Challenge yourself to recall key definitions and bonds.
