BS 161 MSU Exam 1 UPDATED ACTUAL
Questions and CORRECT Answers
scientific argument-claim - CORRECT ANSWER - answer to the question
scientific argument- evidence/support - CORRECT ANSWER - data, observations,
structure and models
scientific argument- reasoning - CORRECT ANSWER - since/because used to explain
how the evidence supports the claim.
what are the 5 interactions between living molecules - CORRECT ANSWER - Covalent
bond, Ionic bond, LDF, Hydrophobic Clustering, Hydrogen bonds
strength of 5 interactions in order - CORRECT ANSWER - 1.Covalent bond
2.Ionic bond,
3.Hydrogen bonds
4. Hydrophobic Clustering
5. LDF
Electronegativity - CORRECT ANSWER - A measure of the ability of an atom in a
chemical compound to attract electrons
What makes atoms stable? - CORRECT ANSWER - -either they have a full valence shell,
or they have 8 electrons in their valence shell (octet rule)
-adding interactions makes it more stable
electronegativity strength O,N,H,C - CORRECT ANSWER - O>N>C=H
, what type of bonding does water have - CORRECT ANSWER - hydrogen bonding
which function group is non-polar - CORRECT ANSWER - methyl (CH3)
when does electrostatic interaction occur between - CORRECT ANSWER - charged polar
molecules
what type of bond is a hydrogen bond? (more specifically) - CORRECT ANSWER - polar
covalent bond
When does hydrogen bonding occur? - CORRECT ANSWER - between polar molecules
were an H atom is directly bonded to an atom with a higher electronegativity
When do ionic bonds form? - CORRECT ANSWER - when two compounds with
drastically different electronegativities bond
Why does salt dissolve in water? - CORRECT ANSWER - the O- in water interactions
with Na+ and the H+ interacts with the Cl- separating the 2 (the polar nature of water molecules)
LDF - CORRECT ANSWER - Nonpolar molecules, temporary dipoles
hydrophobic clustering - CORRECT ANSWER - non polar molecules cluster together
when surrounded by water
dehydration synthesis - CORRECT ANSWER - A chemical reaction in which two
molecules covalently bond to each other with the removal of a water molecule.
Hydrolysis - CORRECT ANSWER - Breaking down complex molecules by the chemical
addition of water
Questions and CORRECT Answers
scientific argument-claim - CORRECT ANSWER - answer to the question
scientific argument- evidence/support - CORRECT ANSWER - data, observations,
structure and models
scientific argument- reasoning - CORRECT ANSWER - since/because used to explain
how the evidence supports the claim.
what are the 5 interactions between living molecules - CORRECT ANSWER - Covalent
bond, Ionic bond, LDF, Hydrophobic Clustering, Hydrogen bonds
strength of 5 interactions in order - CORRECT ANSWER - 1.Covalent bond
2.Ionic bond,
3.Hydrogen bonds
4. Hydrophobic Clustering
5. LDF
Electronegativity - CORRECT ANSWER - A measure of the ability of an atom in a
chemical compound to attract electrons
What makes atoms stable? - CORRECT ANSWER - -either they have a full valence shell,
or they have 8 electrons in their valence shell (octet rule)
-adding interactions makes it more stable
electronegativity strength O,N,H,C - CORRECT ANSWER - O>N>C=H
, what type of bonding does water have - CORRECT ANSWER - hydrogen bonding
which function group is non-polar - CORRECT ANSWER - methyl (CH3)
when does electrostatic interaction occur between - CORRECT ANSWER - charged polar
molecules
what type of bond is a hydrogen bond? (more specifically) - CORRECT ANSWER - polar
covalent bond
When does hydrogen bonding occur? - CORRECT ANSWER - between polar molecules
were an H atom is directly bonded to an atom with a higher electronegativity
When do ionic bonds form? - CORRECT ANSWER - when two compounds with
drastically different electronegativities bond
Why does salt dissolve in water? - CORRECT ANSWER - the O- in water interactions
with Na+ and the H+ interacts with the Cl- separating the 2 (the polar nature of water molecules)
LDF - CORRECT ANSWER - Nonpolar molecules, temporary dipoles
hydrophobic clustering - CORRECT ANSWER - non polar molecules cluster together
when surrounded by water
dehydration synthesis - CORRECT ANSWER - A chemical reaction in which two
molecules covalently bond to each other with the removal of a water molecule.
Hydrolysis - CORRECT ANSWER - Breaking down complex molecules by the chemical
addition of water
