BS 161 Exam 1 UPDATED ACTUAL Questions and CORRECT
Answers
Bonds The interactions between atoms
2nd Law of Thermodynamics Entropy is always increasing
Covalent bonds vs. other weak Covalent bonds occur within a molecule while other interactions
bond interactions occur between molecules
, Energy released when the bond forms, or the energy required to
Bond energy
break the bond
Which are the strongest Covalent bonds
bonds/interactions in an
aqueous environment
(surrounded by water), as is
common in biological systems?
Which type of bond/interaction LDF
requires the LEAST energy input
to break?
It's the sharing of electrons to fill outer
valence shells
What are covalent bonds?
What happens as a result when Entropy is increased and interacting atoms are more stable
covalent bonds form?
Which of the following atoms (O, Oxygen
H, N, C) has the highest
electronegativity?
Electronegativity The ability of atoms to attract electrons
What's an example of a bond N-H, or O-H
with a permanent partial
charge?
What is required for ionic bond Opposite full charges
interactions to form?
Fill in the blank: Molecules with hydrophilic 3 multiple choice options
many polar covalent bonds are
____ and can interact with water
What determines a biological The structure of the biological molecule
molecules interactions and
functions?
What is the order of relative O>N>C=H 3 multiple choice options
electronegativity?
What are caused by differences Permanent partial charges
in electronegativity?
In an electronegative atom, The more electronegative atom, resulting in the atom becoming
where are the shared electrons slightly negative (δ-)
pulled toward?
When are ionic bonds stronger? In the absence of water
Properties of ionic compounds Electrons are not shared, and ions remain charged
The greater the difference in The more uneven the electron sharing will be/the more polar the
electronegativity bond
Nonpolar covalent Electrons are shared equally
Polar covalent Electrons are shared unequally (δ+, δ-)
Ionic bond Electrons are transferred, not shared
Answers
Bonds The interactions between atoms
2nd Law of Thermodynamics Entropy is always increasing
Covalent bonds vs. other weak Covalent bonds occur within a molecule while other interactions
bond interactions occur between molecules
, Energy released when the bond forms, or the energy required to
Bond energy
break the bond
Which are the strongest Covalent bonds
bonds/interactions in an
aqueous environment
(surrounded by water), as is
common in biological systems?
Which type of bond/interaction LDF
requires the LEAST energy input
to break?
It's the sharing of electrons to fill outer
valence shells
What are covalent bonds?
What happens as a result when Entropy is increased and interacting atoms are more stable
covalent bonds form?
Which of the following atoms (O, Oxygen
H, N, C) has the highest
electronegativity?
Electronegativity The ability of atoms to attract electrons
What's an example of a bond N-H, or O-H
with a permanent partial
charge?
What is required for ionic bond Opposite full charges
interactions to form?
Fill in the blank: Molecules with hydrophilic 3 multiple choice options
many polar covalent bonds are
____ and can interact with water
What determines a biological The structure of the biological molecule
molecules interactions and
functions?
What is the order of relative O>N>C=H 3 multiple choice options
electronegativity?
What are caused by differences Permanent partial charges
in electronegativity?
In an electronegative atom, The more electronegative atom, resulting in the atom becoming
where are the shared electrons slightly negative (δ-)
pulled toward?
When are ionic bonds stronger? In the absence of water
Properties of ionic compounds Electrons are not shared, and ions remain charged
The greater the difference in The more uneven the electron sharing will be/the more polar the
electronegativity bond
Nonpolar covalent Electrons are shared equally
Polar covalent Electrons are shared unequally (δ+, δ-)
Ionic bond Electrons are transferred, not shared
