
2.5 Simple molecules and Covalent Bonds
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Chemistry
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10th Grade
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Practice Problem
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Medium
SAMANTHA CHEW
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8 questions
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1.
FLASHCARD QUESTION
Front
What is a covalent bond?
Back
A covalent bond is formed when a pair of electrons is shared between two atoms, leading to noble gas electronic configurations.
2.
FLASHCARD QUESTION
Front
Describe the formation of covalent bonds in H2.
Back
In H2, two hydrogen atoms share one pair of electrons, resulting in a full outer shell.
3.
FLASHCARD QUESTION
Front
What are the properties of simple molecular compounds regarding melting and boiling points?
Back
Simple molecular compounds have low melting and boiling points due to weak intermolecular forces. Little amount of energy is required to overcome the weak forces.
4.
FLASHCARD QUESTION
Front
What is the electrical conductivity of simple molecular compounds?
Back
Simple molecular compounds have poor electrical conductivity. There are no mobile ions or electrons.
5.
FLASHCARD QUESTION
Front
Describe the formation of covalent bonds in O2.
Back
In O2, two oxygen atoms share two pairs of electrons, forming a double bond.
6.
FLASHCARD QUESTION
Front
Describe the formation of covalent bonds in N2.
Back
In N2, two nitrogen atoms share three pairs of electrons, forming a triple bond.
7.
FLASHCARD QUESTION
Front
Explain the low melting and boiling points of simple molecular compounds.
Back
Low melting and boiling points are due to weak intermolecular forces.
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