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Questions and Answers
Which of the following elements are primarily found in organic compounds?
Which of the following elements are primarily found in organic compounds?
- Carbon and hydrogen only
- Carbon, hydrogen, and oxygen (correct)
- Hydrogen and oxygen only
- Carbon and oxygen only
Inorganic compounds are always the result of covalent bonding.
Inorganic compounds are always the result of covalent bonding.
False (B)
What type of bonding is primarily found in organic compounds due to the presence of C-H bonds?
What type of bonding is primarily found in organic compounds due to the presence of C-H bonds?
covalent
The solubility of organic compounds in water is generally ______.
The solubility of organic compounds in water is generally ______.
Match the compound type with its typical electrical conductivity.
Match the compound type with its typical electrical conductivity.
Compared to inorganic compounds, the melting and boiling points of organic compounds are generally:
Compared to inorganic compounds, the melting and boiling points of organic compounds are generally:
Most inorganic compounds do not conduct electricity.
Most inorganic compounds do not conduct electricity.
What did the vital force theory propose?
What did the vital force theory propose?
Friedrich Wöhler's experiment supported the vital force theory.
Friedrich Wöhler's experiment supported the vital force theory.
What is the name of the process where carbon atoms bond together to form chains or rings?
What is the name of the process where carbon atoms bond together to form chains or rings?
According to the octet rule, carbon shares ________ electrons via covalent bonding.
According to the octet rule, carbon shares ________ electrons via covalent bonding.
Match the following compounds to their classification as either organic or inorganic:
Match the following compounds to their classification as either organic or inorganic:
Which of the following characteristics is MOST likely associated with organic compounds?
Which of the following characteristics is MOST likely associated with organic compounds?
Carbon can form only single covalent bonds.
Carbon can form only single covalent bonds.
What is the name of the inorganic salt that Wöhler used in his experiment?
What is the name of the inorganic salt that Wöhler used in his experiment?
Urea, the compound produced by Wöhler, is commonly found in ________ and urine.
Urea, the compound produced by Wöhler, is commonly found in ________ and urine.
An atom with an sp hybridization has which type of bonds?
An atom with an sp hybridization has which type of bonds?
Valence electrons are located in the innermost shell of an atom.
Valence electrons are located in the innermost shell of an atom.
Group VIA elements tend to _______ their valence electrons.
Group VIA elements tend to _______ their valence electrons.
How many valence electrons does a Group IIIA element possess?
How many valence electrons does a Group IIIA element possess?
Match the following groups with their general tendency regarding valence electrons:
Match the following groups with their general tendency regarding valence electrons:
Which type of bond is formed between an ion and a polar molecule?
Which type of bond is formed between an ion and a polar molecule?
A non-polar molecule contains two charges due to unequal distribution of electrons.
A non-polar molecule contains two charges due to unequal distribution of electrons.
What is another name for the London dispersion force?
What is another name for the London dispersion force?
A bond between a polar and a non-polar molecule is called a ______ force.
A bond between a polar and a non-polar molecule is called a ______ force.
Match the following intermolecular forces with their descriptions:
Match the following intermolecular forces with their descriptions:
Which of the following best describes a dipole?
Which of the following best describes a dipole?
The Keesom orientation force is also known as the dipole-induced dipole interaction.
The Keesom orientation force is also known as the dipole-induced dipole interaction.
Who proposed the London dispersion forces?
Who proposed the London dispersion forces?
An atom with an unequal number of protons and electrons is called a(n) ______.
An atom with an unequal number of protons and electrons is called a(n) ______.
Which of these options is formed between a charged particle and a molecule with no charge?
Which of these options is formed between a charged particle and a molecule with no charge?
According to valence bond theory, how are covalent bonds formed?
According to valence bond theory, how are covalent bonds formed?
Molecular orbitals are formed before atomic orbitals.
Molecular orbitals are formed before atomic orbitals.
What happens to the strength of a bond when the atomic orbital overlap increases?
What happens to the strength of a bond when the atomic orbital overlap increases?
A sigma (σ) bond is formed from the ______ combination or overlap of atomic orbitals.
A sigma (σ) bond is formed from the ______ combination or overlap of atomic orbitals.
Which type of bond forms when atomic orbitals are hybridized?
Which type of bond forms when atomic orbitals are hybridized?
Pi (π) bonds are stronger than sigma (σ) bonds.
Pi (π) bonds are stronger than sigma (σ) bonds.
In what type of bonds can you find Pi (Ï€) bonds?
In what type of bonds can you find Pi (Ï€) bonds?
Pi (Ï€) bonds are formed from the ______ combination or overlap of adjacent p orbitals
Pi (Ï€) bonds are formed from the ______ combination or overlap of adjacent p orbitals
Match the molecular orbital with its description:
Match the molecular orbital with its description:
What is the region of an atom where electrons can be found?
What is the region of an atom where electrons can be found?
Flashcards
Organic Compounds
Organic Compounds
Compounds primarily composed of carbon, hydrogen, and oxygen.
Inorganic Compounds
Inorganic Compounds
Compounds typically made of atoms other than carbon. They often have strong bonds between atoms.
Covalent Bonding
Covalent Bonding
The type of bond found in organic compounds, usually formed between carbon and hydrogen.
Ionic Bonding
Ionic Bonding
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Low Melting and Boiling Points (Organic)
Low Melting and Boiling Points (Organic)
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Low Water Solubility (Organic)
Low Water Solubility (Organic)
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Good Electrical Conductors (Inorganic)
Good Electrical Conductors (Inorganic)
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Vital Force Theory
Vital Force Theory
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Friedrich Wöhler
Friedrich Wöhler
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Catenation
Catenation
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NaCl
NaCl
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CH4
CH4
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C6H6
C6H6
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CH3OH
CH3OH
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Ion-Dipole Bond
Ion-Dipole Bond
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Ion-Induced Dipole Bond
Ion-Induced Dipole Bond
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London Dispersion Force
London Dispersion Force
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Debye Induction Force
Debye Induction Force
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Keesom Orientation Force
Keesom Orientation Force
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Van Der Waals Forces
Van Der Waals Forces
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Polar Molecule
Polar Molecule
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Non-Polar Molecule
Non-Polar Molecule
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Ion
Ion
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Intermolecular Bond
Intermolecular Bond
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Valence Electrons
Valence Electrons
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Valence Bond Theory
Valence Bond Theory
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Lewis Structure
Lewis Structure
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Atomic Orbital
Atomic Orbital
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Hybridization
Hybridization
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Molecular Orbital
Molecular Orbital
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Orbital Overlap
Orbital Overlap
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Sigma Bond
Sigma Bond
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Pi Bond
Pi Bond
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Sigma Bond (σ)
Sigma Bond (σ)
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Pi Bond (Ï€)
Pi Bond (Ï€)
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Hybridization
Hybridization
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Single Bond
Single Bond
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Double Bond
Double Bond
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Triple Bond
Triple Bond
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Study Notes
Introduction to Organic Chemistry
- Organic chemistry is the study of compounds containing carbon, excluding CO2, CO, CO32-, CN, and HCO3-.
- Organic compounds typically contain carbon and hydrogen, but also may contain other elements like nitrogen, oxygen, halogens, phosphorus, and sulfur.
- Inorganic compounds lack a carbon-to-hydrogen bond and often contain metals.
Uniqueness of Carbon
- Carbon is the 6th element in the periodic table.
- Carbon commonly forms the backbone of molecules in living organisms.
- Carbon can form a combination of single, double, and triple covalent bonds.
- Carbon's ability to bond with itself (catenation) allows a vast array of molecule structures.
Chemical Bonds
- Chemical bonds hold molecules together, resulting from the interaction of electrons in atomic orbitals.
- Two main types of chemical bonds:
- Intramolecular bonds: Bonds within a single molecule.
- Intermolecular bonds: Bonds between two or more molecules.
- Types of intramolecular bonds:
- Ionic bonds: Transfer of electrons between a metal and a nonmetal.
- Covalent bonds: Sharing of electrons between nonmetals.
- Polar covalent bonds: Unequal sharing of electrons.
- Nonpolar covalent bonds: Equal sharing of electrons.
- Types of intermolecular bonds:
- Hydrogen bonds: A strong dipole-dipole interaction between hydrogen and a highly electronegative atom (N, O, F).
- Ion-dipole bonds: A bond between an ion and a polar molecule.
- Dipole-dipole bonds: A bond between two polar molecules.
- London dispersion forces: Weak attractive forces between nonpolar molecules.
Valence Bond Theory
- Valence bond theory explains how bonds form by sharing electrons in overlapping atomic orbitals to form molecular orbitals.
- Sigma (σ) bonds form by head-on overlap of orbitals, while pi (π) bonds form by sideways overlap of p orbitals.
- Hybridization describes the mixing of atomic orbitals to form new orbitals with specific shapes and orientations.
- sp3 hybridization: 4 hybridized orbitals, 4 sigma bonds, 0 pi bonds
- sp2 hybridization: 3 hybridized orbitals, 3 sigma bonds, 1 pi bond
- sp hybridization: 2 hybridized orbitals, 2 sigma bonds, 2 pi bonds.
Resonance
- Resonance describes delocalized electrons in molecules or polyatomic ions that cannot be represented by a single Lewis structure.
- Equivalent Lewis structures are called resonance structures, linked by double-headed arrows.
- Resonance structures differ only in the position of pi bonds or nonbonding electrons.
- The resonance hybrid is more stable than any individual resonance form.
Lewis Structure
- Lewis structures visualize the arrangement of valence electrons around atoms in a molecule.
- Electrons are represented as dots or lines between atoms to show bonding.
- Skeletal structures depict the arrangement of atoms in a molecule.
- Formal charges are calculated to help determine the most likely resonance structure by considering the electronegativity of the atoms.
Periodic Table
- The periodic table organizes chemical elements by atomic number and properties.
- Valence electrons in an element's outermost shell determine how an atom reacts in a chemical reaction.
Organic Chemistry: History
- Jöns Jacob Berzelius coined the term "organic chemistry" in 1806.
- The "vital force theory" proposed that organic compounds could only be formed by living organisms.
- Friedrich Wöhler disproved the vital force theory in 1828 by synthesizing urea, a biological compound, in a laboratory.
Molecular Geometry
- Molecular geometry describes the three-dimensional arrangement of atoms in a molecule and affects the molecule's properties like polarity.
Polarity of Molecules
- Molecular polarity arises from the unequal sharing of electrons in polar covalent bonds and the molecular geometry.
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