CEM 141 MSU EXAM 3 QUESTIONS WITH
CORRECT ANSWERS (VERIFIED
SOLUTIONS) ||100% GUARANTEED
PASS||UPDATED 2026/2027
SYLLABUS||ALREADY GRADED||
Why do bonds form between atoms? - ANSWER ✓ because valence electrons are
attracted to the nuclei of other atoms
Covalent Bonds - ANSWER ✓ two hydrogen atoms interact and form a covalent
bond
What properties do metals have? - ANSWER ✓ -hard
-conduct electricity
-shiny
-react w/water
-malleable
Bonding in Metals - ANSWER ✓ atomic orbitals combine with each other to form
molecular orbitals
Covalent bonds hold atoms together within.. - ANSWER ✓ molecules
Molecular interactions hold atoms together between... - ANSWER ✓ molecules
T/F: Covalent bonds are stronger - ANSWER ✓ True
Why are metals shiny? - ANSWER ✓ photons of wavelengths are absorbed and
then re-emitted
Changes of state (solid --> liquid ---> gas) - ANSWER ✓ REQUIRES energy
, Changes of state (gas --> liquid --> solid) - ANSWER ✓ RELEASES energy
Where does the energy come from? - ANSWER ✓ The surroundings
Where are the attractions coming from? - ANSWER ✓ Between the molecules
Ionic Bonds - - ANSWER ✓ are between a metal and non-metal
Bonding in Diamond - ANSWER ✓ each carbon atom is bonded to make more
carbon atoms
Valence Bond - ANSWER ✓ atomic orbitals overlap to form a bond
Bonding in Graphite - ANSWER ✓ one s and two p orbitals hybridize to give
three Sp2 orbitals
Heterogeneous Compounds - ANSWER ✓ bonding in carbon compound bonds to
C,H,O,N,S,P
Lewis Structure - ANSWER ✓ 1. group number = how many valence electrons
2. for cations = (+) remove electrons
3. for anions = (-) add electrons
4. use 2 electrons for each atom
Formal Charge: - ANSWER ✓ Valence electrons on free atom - #bonds to atoms -
non bonded electrons = Formal charge
Example: OH-
6 from oxygen +1 from hydrogen +1because its minus 1 ion = 8 valence electrons
Electronegativity - ANSWER ✓ ability of an element to attract electrons to
another electron
Electronegativity ... - ANSWER ✓ increases across the table
decreases down the table
Polar Bonds - ANSWER ✓ when two atoms of different eleectronegativities bond,
the electrons are not shared equally
CORRECT ANSWERS (VERIFIED
SOLUTIONS) ||100% GUARANTEED
PASS||UPDATED 2026/2027
SYLLABUS||ALREADY GRADED||
Why do bonds form between atoms? - ANSWER ✓ because valence electrons are
attracted to the nuclei of other atoms
Covalent Bonds - ANSWER ✓ two hydrogen atoms interact and form a covalent
bond
What properties do metals have? - ANSWER ✓ -hard
-conduct electricity
-shiny
-react w/water
-malleable
Bonding in Metals - ANSWER ✓ atomic orbitals combine with each other to form
molecular orbitals
Covalent bonds hold atoms together within.. - ANSWER ✓ molecules
Molecular interactions hold atoms together between... - ANSWER ✓ molecules
T/F: Covalent bonds are stronger - ANSWER ✓ True
Why are metals shiny? - ANSWER ✓ photons of wavelengths are absorbed and
then re-emitted
Changes of state (solid --> liquid ---> gas) - ANSWER ✓ REQUIRES energy
, Changes of state (gas --> liquid --> solid) - ANSWER ✓ RELEASES energy
Where does the energy come from? - ANSWER ✓ The surroundings
Where are the attractions coming from? - ANSWER ✓ Between the molecules
Ionic Bonds - - ANSWER ✓ are between a metal and non-metal
Bonding in Diamond - ANSWER ✓ each carbon atom is bonded to make more
carbon atoms
Valence Bond - ANSWER ✓ atomic orbitals overlap to form a bond
Bonding in Graphite - ANSWER ✓ one s and two p orbitals hybridize to give
three Sp2 orbitals
Heterogeneous Compounds - ANSWER ✓ bonding in carbon compound bonds to
C,H,O,N,S,P
Lewis Structure - ANSWER ✓ 1. group number = how many valence electrons
2. for cations = (+) remove electrons
3. for anions = (-) add electrons
4. use 2 electrons for each atom
Formal Charge: - ANSWER ✓ Valence electrons on free atom - #bonds to atoms -
non bonded electrons = Formal charge
Example: OH-
6 from oxygen +1 from hydrogen +1because its minus 1 ion = 8 valence electrons
Electronegativity - ANSWER ✓ ability of an element to attract electrons to
another electron
Electronegativity ... - ANSWER ✓ increases across the table
decreases down the table
Polar Bonds - ANSWER ✓ when two atoms of different eleectronegativities bond,
the electrons are not shared equally
