Covalent Bonding

Multiple Choice

How are covalent bonds formed?

• Covalent bonds are formed by the sharing of electron pairs between atoms.
• Covalent bonds are formed through the attraction of oppositely charged ions.
• Covalent bonds are formed when atoms collide and fuse together.
• Covalent bonds are formed by the transfer of electrons from one atom to another.

Multiple Choice

What are diatomic elements?

• Diatomic elements are always found in solid form.
• Diatomic elements are made up of three atoms.
• Diatomic elements can only consist of noble gases.
• Diatomic elements are molecules made up of two atoms, either of the same or different elements.

Multiple Choice

How do bond lengths differ among single, double, and triple covalent bonds?

• Bond lengths are the same for single, double, and triple covalent bonds.
• Bond lengths vary randomly and do not follow a specific trend.
• Bond lengths decrease from single to double to triple covalent bonds.
• Bond lengths increase from single to double to triple covalent bonds.

Multiple Choice

How are bond length and bond strength related?

• Bond length decreases as bond strength increases.
• Bond length remains constant regardless of bond strength.
• Bond length and bond strength are unrelated.
• Bond length increases as bond strength decreases.

Multiple Choice

How are binary molecules named?

• Binary molecules are named using prefixes for the number of atoms and the '-ide' suffix for the second element.
• Binary molecules are named with a suffix '-ate' for both elements.
• Binary molecules are named by their chemical symbols only.
• Binary molecules are named using Roman numerals for the first element.

Multiple Choice

How are binary acids named?

• Binary acids are named by adding 'acid' to the element name.
• Binary acids are named using the format 'oxo-[root name]-ic acid'.
• Binary acids are named with the suffix '-ate acid'.
• Binary acids are named using the format 'hydro-[root name]-ic acid'.

Multiple Choice

How are oxyacids named?

• Oxyacids are named based on their molecular weight.
• Oxyacids are named using only the prefix 'hydro-'.
• Oxyacids are named based on the polyatomic ion they contain, using 'ic' for 'ate' ions and 'ous' for 'ite' ions.
• Oxyacids are named after the first element in the compound.

Multiple Choice

How are Lewis dot structures drawn?

• Valence electrons are represented as numbers next to the chemical symbols.
• Lewis dot structures are drawn using only lines to represent bonds.
• Lewis dot structures are drawn by representing valence electrons as dots around the chemical symbols of atoms, showing bonds and lone pairs.
• Lewis dot structures do not show lone pairs or bonds between atoms.

Multiple Choice

What is a resonance structure?

• A resonance structure is a fixed arrangement of atoms in a molecule.
• A resonance structure is a representation of a molecule that shows different possible arrangements of electrons.
• A resonance structure is a type of chemical bond that cannot be broken.
• A resonance structure is a representation of a molecule that shows only one arrangement of electrons.

Multiple Choice

What are the octet rule exceptions?

• All molecules follow the octet rule strictly.
• Only noble gases can have expanded octets.
• Odd-electron molecules always have complete octets.
• Exceptions to the octet rule include odd-electron molecules, incomplete octets, and expanded octets.

Multiple Choice

What is a VSEPR model?

• A model that describes the speed of chemical reactions.
• A method for calculating molecular weights.
• A theory that focuses on the color of molecules.
• The VSEPR model is a theory used to predict molecular geometry based on electron pair repulsion.

Multiple Choice

What is orbital hybridization?

• Orbital hybridization is the formation of ionic bonds between atoms.
• Orbital hybridization is the process of splitting atomic orbitals.
• Orbital hybridization refers to the movement of electrons between atoms.
• Orbital hybridization is the mixing of atomic orbitals to form new hybrid orbitals for bonding.

Multiple Choice

What is electronegativity?

• Electronegativity is the measure of an atom's size.
• Electronegativity refers to the energy released during a chemical reaction.
• Electronegativity is the temperature at which a substance changes state.
• Electronegativity is the ability of an atom to attract electrons in a chemical bond.

Multiple Choice

How is electronegativity difference calculated?

• Electronegativity difference = Electronegativity of atom A + Electronegativity of atom B
• Electronegativity difference = Electronegativity of atom A * Electronegativity of atom B
• Electronegativity difference = Electronegativity of atom A / Electronegativity of atom B
• Electronegativity difference = |Electronegativity of atom A - Electronegativity of atom B|