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Questions and Answers
Which state of matter has a definite volume but no definite shape?
Which state of matter has a definite volume but no definite shape?
A physical change results in the formation of a new substance.
A physical change results in the formation of a new substance.
False
What is the term for the process of a gas turning directly into a solid?
What is the term for the process of a gas turning directly into a solid?
Deposition
_ is the mass per unit volume of a substance.
_ is the mass per unit volume of a substance.
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Match the following terms with their definitions:
Match the following terms with their definitions:
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Which of the following is an example of a covalent compound?
Which of the following is an example of a covalent compound?
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A mixture is formed when two or more elements are chemically bonded.
A mixture is formed when two or more elements are chemically bonded.
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What is the smallest unit of an element?
What is the smallest unit of an element?
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Which of the following is a characteristic of acids?
Which of the following is a characteristic of acids?
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Methane (CH₄) is an example of a complex compound.
Methane (CH₄) is an example of a complex compound.
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What is the fundamental equation that describes how the quantum state of a system evolves over time?
What is the fundamental equation that describes how the quantum state of a system evolves over time?
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The _______ quantum number defines the shape of an orbital.
The _______ quantum number defines the shape of an orbital.
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Which of the following is NOT a quantum number?
Which of the following is NOT a quantum number?
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According to Hund's Rule, electrons will pair up in degenerate orbitals before occupying them singly.
According to Hund's Rule, electrons will pair up in degenerate orbitals before occupying them singly.
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What are the electrons in the outermost shell of an atom that participate in bonding known as?
What are the electrons in the outermost shell of an atom that participate in bonding known as?
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What is the term for a positively charged ion?
What is the term for a positively charged ion?
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The octet rule states that atoms tend to gain, lose, or share electrons to achieve a stable configuration of 6 valence electrons.
The octet rule states that atoms tend to gain, lose, or share electrons to achieve a stable configuration of 6 valence electrons.
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What type of energy is released when ions form a crystalline lattice?
What type of energy is released when ions form a crystalline lattice?
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A quantum of electromagnetic energy emitted or absorbed by electrons during transitions is called a ______.
A quantum of electromagnetic energy emitted or absorbed by electrons during transitions is called a ______.
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Match the following terms to their descriptions:
Match the following terms to their descriptions:
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What type of bond is formed through the electrostatic attraction between oppositely charged ions?
What type of bond is formed through the electrostatic attraction between oppositely charged ions?
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What kind of bond is formed by the sharing of electrons between atoms?
What kind of bond is formed by the sharing of electrons between atoms?
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Metals typically gain electrons to form anions in ionic bonding.
Metals typically gain electrons to form anions in ionic bonding.
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Molecular compounds typically have high melting and boiling points.
Molecular compounds typically have high melting and boiling points.
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What is the phenomenon where particles pass through energy barriers they classically cannot surmount?
What is the phenomenon where particles pass through energy barriers they classically cannot surmount?
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What type of intermolecular force is present in all molecules?
What type of intermolecular force is present in all molecules?
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The tendency of a substance to vaporize is known as ______.
The tendency of a substance to vaporize is known as ______.
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Which of the following describes a molecule with an uneven distribution of electron density and a net dipole moment?
Which of the following describes a molecule with an uneven distribution of electron density and a net dipole moment?
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Match the terms describing molecular structure with their definitions:
Match the terms describing molecular structure with their definitions:
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Molecular compounds are typically good conductors of electricity.
Molecular compounds are typically good conductors of electricity.
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The word 'cat' is a good example of a ______.
The word 'cat' is a good example of a ______.
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