CHEM 120-CHAMBERLAIN EXAM 2 STUDY
GUIDE 2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. chemical bond - ANSWER ✔ the attractive forces that holds two atoms
together in a more complex unit
2. ionic bond - ANSWER ✔ a chemical bond formed through the transfer of
one or more electrons from one atom to another atom, metal and nonmetal
3. ionic compound - ANSWER ✔ a compound in which ionic bonds are
present
valence electrons are transferred from a metal to a nonmetal, solid at room
temperature
4. covalent bond - ANSWER ✔ sharing of electrons, happens between two
nonmetals
5. molecular compound - ANSWER ✔ a compound in which covalent bonds
are present, can be solid, liquid, or gas at room temperature
6. molecule - ANSWER ✔ basic unit of a compound of covalently bonded
atoms
,7. valence electrons - ANSWER ✔ look at the highest value of the electron
shell number and the number of valence electrons
8. lewis symbol - ANSWER ✔ the chemical symbol of an element surrounded
by dots equal in number to the number of valence electrons
9. stable - ANSWER ✔ lowest energy possible
10.localized electron model - ANSWER ✔ when forming bonds, atoms share
electrons through an overlap of atomic orbitals (localized electron- electron
stays close to where it started)
11.Octet rule - ANSWER ✔ atoms tend to share electrons to achieve a noble
gas configuration, that is a full octet of valence electrons
12.Bonding electrons - ANSWER ✔ paris of valence electrons that are shared
between atoms in a covalent bond
13.Nonbonding electrons - ANSWER ✔ pairs of valence electrons on an atom
that are not involved in electron sharing
14.single covalent bond - ANSWER ✔ a covalent bond in which two atoms
share one pair of electrons
15.double covalent bond - ANSWER ✔ a covalent bond in which 2 atoms share
2 pairs of electrons
,16.triple covalent bond - ANSWER ✔ a covalent bond in which 2 atoms share
3 pairs of electrons
17.multiple bonds - ANSWER ✔ double bond, share 4 electrons
triple bond, share 6 electrons
18.coordinate covalent bond - ANSWER ✔ a covalent bond in which both
electrons in a shared pair of electrons come from one of the two atoms in the
bond
19.regular covalent single bond - ANSWER ✔ 1 electron from each atom
20.coordinate covalent single - ANSWER ✔ 2 electron from 1 atom, none from
the other
21.formula unit - ANSWER ✔ the smallest whole-number repeating ratio of
ions present in ionic compound that results in charge neutrality
22.binary compound - ANSWER ✔ a compound in which only two elements
are present
23.binary ionic compound - ANSWER ✔ an ionic compound in which one
element present is a metal and the other element present is a nonmetal
24.monoatomic ion - ANSWER ✔ an ion formed from a atom through the loss
of gain of electrons
, 25.polyatomic ion - ANSWER ✔ an ion formed from a group of atoms (held
together by covalent bonds) through the loss or gain of electrons
specific heat - ANSWER ✔ The amount of energy required to raise the
temperature of 1 gram of a substance by 1 degree celcius
26.Avogadro's Number - ANSWER ✔ 6.02 x 10^23
27.What is the molar mass of CaSO4 - ANSWER ✔ 136.14 g/mol
28.Based on the balanced chemical equation 2 NH3 + 3 CuO ~ 3 Cu + N2 +
H20
Which of the following statements is not true? - ANSWER ✔ H2O is a
reactant
29.How many atoms of oxygen are there in the molecule AI2 (SO4)3 -
ANSWER ✔ 12
30.In balancing chemical equations, the coefficient are used to - ANSWER ✔
Show number of momes
31.What allows us to convert from moles of one substance to moles of another
substance - ANSWER ✔ balanced chemical equation
32.A chemist dissolved 24 grams of CaCl2 in water to prepare a solution with a
total volume of 360mL - ANSWER ✔ 0.6M
GUIDE 2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. chemical bond - ANSWER ✔ the attractive forces that holds two atoms
together in a more complex unit
2. ionic bond - ANSWER ✔ a chemical bond formed through the transfer of
one or more electrons from one atom to another atom, metal and nonmetal
3. ionic compound - ANSWER ✔ a compound in which ionic bonds are
present
valence electrons are transferred from a metal to a nonmetal, solid at room
temperature
4. covalent bond - ANSWER ✔ sharing of electrons, happens between two
nonmetals
5. molecular compound - ANSWER ✔ a compound in which covalent bonds
are present, can be solid, liquid, or gas at room temperature
6. molecule - ANSWER ✔ basic unit of a compound of covalently bonded
atoms
,7. valence electrons - ANSWER ✔ look at the highest value of the electron
shell number and the number of valence electrons
8. lewis symbol - ANSWER ✔ the chemical symbol of an element surrounded
by dots equal in number to the number of valence electrons
9. stable - ANSWER ✔ lowest energy possible
10.localized electron model - ANSWER ✔ when forming bonds, atoms share
electrons through an overlap of atomic orbitals (localized electron- electron
stays close to where it started)
11.Octet rule - ANSWER ✔ atoms tend to share electrons to achieve a noble
gas configuration, that is a full octet of valence electrons
12.Bonding electrons - ANSWER ✔ paris of valence electrons that are shared
between atoms in a covalent bond
13.Nonbonding electrons - ANSWER ✔ pairs of valence electrons on an atom
that are not involved in electron sharing
14.single covalent bond - ANSWER ✔ a covalent bond in which two atoms
share one pair of electrons
15.double covalent bond - ANSWER ✔ a covalent bond in which 2 atoms share
2 pairs of electrons
,16.triple covalent bond - ANSWER ✔ a covalent bond in which 2 atoms share
3 pairs of electrons
17.multiple bonds - ANSWER ✔ double bond, share 4 electrons
triple bond, share 6 electrons
18.coordinate covalent bond - ANSWER ✔ a covalent bond in which both
electrons in a shared pair of electrons come from one of the two atoms in the
bond
19.regular covalent single bond - ANSWER ✔ 1 electron from each atom
20.coordinate covalent single - ANSWER ✔ 2 electron from 1 atom, none from
the other
21.formula unit - ANSWER ✔ the smallest whole-number repeating ratio of
ions present in ionic compound that results in charge neutrality
22.binary compound - ANSWER ✔ a compound in which only two elements
are present
23.binary ionic compound - ANSWER ✔ an ionic compound in which one
element present is a metal and the other element present is a nonmetal
24.monoatomic ion - ANSWER ✔ an ion formed from a atom through the loss
of gain of electrons
, 25.polyatomic ion - ANSWER ✔ an ion formed from a group of atoms (held
together by covalent bonds) through the loss or gain of electrons
specific heat - ANSWER ✔ The amount of energy required to raise the
temperature of 1 gram of a substance by 1 degree celcius
26.Avogadro's Number - ANSWER ✔ 6.02 x 10^23
27.What is the molar mass of CaSO4 - ANSWER ✔ 136.14 g/mol
28.Based on the balanced chemical equation 2 NH3 + 3 CuO ~ 3 Cu + N2 +
H20
Which of the following statements is not true? - ANSWER ✔ H2O is a
reactant
29.How many atoms of oxygen are there in the molecule AI2 (SO4)3 -
ANSWER ✔ 12
30.In balancing chemical equations, the coefficient are used to - ANSWER ✔
Show number of momes
31.What allows us to convert from moles of one substance to moles of another
substance - ANSWER ✔ balanced chemical equation
32.A chemist dissolved 24 grams of CaCl2 in water to prepare a solution with a
total volume of 360mL - ANSWER ✔ 0.6M
