What is the difference between ionic and covalent compounds?
Properties and Lewis Structures Test Review

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Chemistry
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
Ionic compounds are formed by the transfer of electrons from one atom to another, resulting in charged ions. They typically have high melting points and are soluble in water. Covalent compounds are formed by the sharing of electrons between atoms, usually have lower melting points, and can be gases, liquids, or solids at room temperature.
2.
FLASHCARD QUESTION
Front
What is a characteristic property of ionic compounds?
Back
Ionic compounds typically have high melting points due to the strong electrostatic forces between the ions.
3.
FLASHCARD QUESTION
Front
What is a Lewis structure?
Back
A Lewis structure is a diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist.
4.
FLASHCARD QUESTION
Front
What is the correct Lewis structure for CH₃Cl?
Back
The correct Lewis structure for CH₃Cl shows carbon (C) bonded to three hydrogen (H) atoms and one chlorine (Cl) atom, with appropriate lone pairs on Cl.
5.
FLASHCARD QUESTION
Front
How does the melting point of sugar compare to that of table salt?
Back
The melting point of sugar is less than the melting point of table salt.
6.
FLASHCARD QUESTION
Front
What is the molecular structure of carbon dioxide (CO₂)?
Back
The molecular structure of carbon dioxide is linear, with one carbon atom double bonded to two oxygen atoms.
7.
FLASHCARD QUESTION
Front
What is the significance of boiling points in determining the type of compound?
Back
Compounds with low boiling points are typically covalent, while those with high boiling points are often ionic.
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