ACS GENERAL CHEMISTRY EXAM WITH
QUESTIONS AND ANSWERS|| GUARANTEED
PASS|| ALREADY GRADED A+|| LATEST
VERSION 2026
How do intermolecular forces influence condensed phases? - ANSWER-The
physical properties of condensed phases are strongly influenced by the nature of
the intermolecular forces.
What must be included to correctly explain energy consequences in chemical
reactions in solution? - ANSWER-Intermolecular forces must be included to
correctly explain the energy consequences of chemical reactions in condensed
phases.
What is conserved in chemical changes? - ANSWER-Matter is conserved in
chemical changes, allowing representation of chemical change via balanced
chemical equations.
What does chemical change involve? - ANSWER-Chemical change involves
the breaking or forming of chemical bonds, or typically both.
How can chemical change be observed? - ANSWER-Chemical change can be
observed at both the particulate and macroscopic levels, with models allowing
translation between these levels.
What factors can control chemical reactions? - ANSWER-Chemical reactions
can be controlled by choices of reactants, reaction conditions, or the use of
catalysts.
,Why is controlling chemical reactions important? - ANSWER-Controlling
chemical reactions is key in the synthesis of new materials.
What is the relationship between chemical changes and energy? - ANSWER-
Most chemical changes are accompanied by a net change of energy in the
system.
How do you determine the energy of a photon in an electron transition? -
ANSWER-By the distance between the energy levels involved in the transition.
What does the term 'ground-state' refer to in atomic structure? - ANSWER-The
lowest energy state of an atom where electrons occupy the lowest available
energy levels.
What is the maximum value of m_l for l = 2? - ANSWER-The maximum value
of m_l is +2.
What is the minimum value of m_s? - ANSWER-The minimum value of m_s is
-1/2.
What does the quantum number l = 2 correspond to in terms of orbital type? -
ANSWER-It corresponds to a d orbital.
What is the atomic number of Germanium (Ge)? - ANSWER-32
What is the valence electron configuration for Ge? - ANSWER-4s²4p²
How do you determine the valence electrons of an element? - ANSWER-
Valence electrons are the electrons in the outermost energy level.
In which period and group is Germanium located on the periodic table? -
ANSWER-Fourth period and group 14.
,What is the core notation for the electron configuration of Ge? - ANSWER-[Ar]
4s²3d¹⁰4p².
What is the importance of reviewing material before an exam? - ANSWER-It
helps ensure a comprehensive understanding of the topics covered.
What chapter typically covers atomic structure in textbooks? - ANSWER-
Chapters titled 'Atoms, Molecules, and Ions' or 'Atoms and Molecules'.
What is the purpose of practice exam questions? - ANSWER-To assess
understanding and prepare for actual exam conditions.
What does the term 'particulate representations' refer to? - ANSWER-Visual
models that represent the arrangement and types of subatomic particles.
Why is the number of electrons not considered when identifying isotopes? -
ANSWER-Isotopes are defined by their number of protons and neutrons, not
electrons.
What does the nuclear symbol provide regarding an atom? - ANSWER-It
provides the atomic number (Z), which is the number of protons, and the mass
number (A), which is the total number of protons and neutrons.
What is the atomic number of Strontium (Sr)? - ANSWER-38, which indicates
it has 38 protons.
How many neutrons are present in Strontium (Sr) with a mass number of 90? -
ANSWER-52 neutrons, calculated as 90 (mass number) - 38 (atomic number).
, What is the charge of an atom with equal numbers of protons and electrons? -
ANSWER-Neutral, as the positive charge from protons balances the negative
charge from electrons.
What is the atomic number of an ion with a charge of +1 and 18 electrons? -
ANSWER-19, because the ion has one more proton than electrons.
Why is the atomic number greater than the number of electrons in a positive
ion? - ANSWER-Because a positive charge indicates that there are fewer
electrons than protons.
How many protons, neutrons, and electrons are in Ti3+? - ANSWER-22
protons, 25 neutrons, and 19 electrons.
What does a positive charge indicate about the number of electrons in an ion? -
ANSWER-It indicates that electrons have been removed from the atom.
What is the mass number of Titanium (Ti) if it has 22 protons and 25 neutrons?
- ANSWER-47, calculated as 22 (protons) + 25 (neutrons).
What are the two isotopes of chlorine mentioned in the notes? - ANSWER-
34.97 amu and 36.97 amu.
What is the average atomic mass of chlorine as given in the periodic table? -
ANSWER-35.45 amu.
How do you calculate the relative abundance of isotopes? - ANSWER-By using
the average atomic mass and the masses of the isotopes to find a weighted
average.
Why is choice (D) the correct valence electron configuration for Ge? -
ANSWER-It includes both the 4s and 4p electrons, which are in the outermost
energy level.
QUESTIONS AND ANSWERS|| GUARANTEED
PASS|| ALREADY GRADED A+|| LATEST
VERSION 2026
How do intermolecular forces influence condensed phases? - ANSWER-The
physical properties of condensed phases are strongly influenced by the nature of
the intermolecular forces.
What must be included to correctly explain energy consequences in chemical
reactions in solution? - ANSWER-Intermolecular forces must be included to
correctly explain the energy consequences of chemical reactions in condensed
phases.
What is conserved in chemical changes? - ANSWER-Matter is conserved in
chemical changes, allowing representation of chemical change via balanced
chemical equations.
What does chemical change involve? - ANSWER-Chemical change involves
the breaking or forming of chemical bonds, or typically both.
How can chemical change be observed? - ANSWER-Chemical change can be
observed at both the particulate and macroscopic levels, with models allowing
translation between these levels.
What factors can control chemical reactions? - ANSWER-Chemical reactions
can be controlled by choices of reactants, reaction conditions, or the use of
catalysts.
,Why is controlling chemical reactions important? - ANSWER-Controlling
chemical reactions is key in the synthesis of new materials.
What is the relationship between chemical changes and energy? - ANSWER-
Most chemical changes are accompanied by a net change of energy in the
system.
How do you determine the energy of a photon in an electron transition? -
ANSWER-By the distance between the energy levels involved in the transition.
What does the term 'ground-state' refer to in atomic structure? - ANSWER-The
lowest energy state of an atom where electrons occupy the lowest available
energy levels.
What is the maximum value of m_l for l = 2? - ANSWER-The maximum value
of m_l is +2.
What is the minimum value of m_s? - ANSWER-The minimum value of m_s is
-1/2.
What does the quantum number l = 2 correspond to in terms of orbital type? -
ANSWER-It corresponds to a d orbital.
What is the atomic number of Germanium (Ge)? - ANSWER-32
What is the valence electron configuration for Ge? - ANSWER-4s²4p²
How do you determine the valence electrons of an element? - ANSWER-
Valence electrons are the electrons in the outermost energy level.
In which period and group is Germanium located on the periodic table? -
ANSWER-Fourth period and group 14.
,What is the core notation for the electron configuration of Ge? - ANSWER-[Ar]
4s²3d¹⁰4p².
What is the importance of reviewing material before an exam? - ANSWER-It
helps ensure a comprehensive understanding of the topics covered.
What chapter typically covers atomic structure in textbooks? - ANSWER-
Chapters titled 'Atoms, Molecules, and Ions' or 'Atoms and Molecules'.
What is the purpose of practice exam questions? - ANSWER-To assess
understanding and prepare for actual exam conditions.
What does the term 'particulate representations' refer to? - ANSWER-Visual
models that represent the arrangement and types of subatomic particles.
Why is the number of electrons not considered when identifying isotopes? -
ANSWER-Isotopes are defined by their number of protons and neutrons, not
electrons.
What does the nuclear symbol provide regarding an atom? - ANSWER-It
provides the atomic number (Z), which is the number of protons, and the mass
number (A), which is the total number of protons and neutrons.
What is the atomic number of Strontium (Sr)? - ANSWER-38, which indicates
it has 38 protons.
How many neutrons are present in Strontium (Sr) with a mass number of 90? -
ANSWER-52 neutrons, calculated as 90 (mass number) - 38 (atomic number).
, What is the charge of an atom with equal numbers of protons and electrons? -
ANSWER-Neutral, as the positive charge from protons balances the negative
charge from electrons.
What is the atomic number of an ion with a charge of +1 and 18 electrons? -
ANSWER-19, because the ion has one more proton than electrons.
Why is the atomic number greater than the number of electrons in a positive
ion? - ANSWER-Because a positive charge indicates that there are fewer
electrons than protons.
How many protons, neutrons, and electrons are in Ti3+? - ANSWER-22
protons, 25 neutrons, and 19 electrons.
What does a positive charge indicate about the number of electrons in an ion? -
ANSWER-It indicates that electrons have been removed from the atom.
What is the mass number of Titanium (Ti) if it has 22 protons and 25 neutrons?
- ANSWER-47, calculated as 22 (protons) + 25 (neutrons).
What are the two isotopes of chlorine mentioned in the notes? - ANSWER-
34.97 amu and 36.97 amu.
What is the average atomic mass of chlorine as given in the periodic table? -
ANSWER-35.45 amu.
How do you calculate the relative abundance of isotopes? - ANSWER-By using
the average atomic mass and the masses of the isotopes to find a weighted
average.
Why is choice (D) the correct valence electron configuration for Ge? -
ANSWER-It includes both the 4s and 4p electrons, which are in the outermost
energy level.
