Straighterline CHEM 101 Final
Study Guide (Latest
2026/2027 Update) 320
Questions & Answers | Grade
A | 100% Correct
Description
This StraighterLine Chem101 final exam is a Compilation of multiple latest
documents (Q-Bank) of 320- questions covering introductory chemistry
principles. It is cumulative, focusing on stoichiometry, atomic structure,
bonding, gas laws, and thermochemistry. A calculator and provided periodic
table are allowed.
Exam Description and Key Details
Format: 320 multiple-choice questions.
Access: Purchase through Stuvia and get instant pdf
Download
Resources Allowed: Scientific calculator and periodic
table (provided in Moodle).
Key Topics
Content: Covers fundamental chemistry topics including: Scientific Method &
Measurements: Sig figs, dimensional analysis, density, physical vs. chemical
changes. Atoms & Molecules: Atomic structure, electron configurations,
periodic table trends. Stoichiometry & Reactions: Balancing equations, mole
ratios, molarity, redox, titration. Bonding & Geometry: Lewis structures,
VSEPR theory, polarity. Thermochemistry & Gases: Ideal gas law, enthalpy,
state functions. Study Tips & Strategies Focus on Fundamentals: Review
1
, material from the beginning of the course, as early concepts are heavily
tested. Practice Calculations: Focus on stoichiometry, titration calculations,
and unit conversions (\(mL\) to \(L\), \(g\) to \(mol\)).Redox & Structure: Know
how to assign oxidation numbers and predict molecular geometry/polarity.
Exam Strategy: Questions are randomized; manage time wisely (approx. 1.5
minutes per question) and do not leave questions blank.
Quiz_________________?
total number of neutrons and protons in an atom; # protons + #
electrons -
Answer☑️
Mass Number
Quiz_________________?
Most nonmetallic elements are found in which block of the
periodic table? -
Answer☑️
p
Quiz_________________?
Ernest Rutherford disproved J.J. Thomson's plum-pudding model
of the atom by showing that... -
Answer☑️
Positive matter is concentrated in the central core
2
, Quiz_________________?
Plants use up copious amounts of which alkali metal, preventing
most of it from being washed out to sea? -
Answer☑️
Potassium
Quiz_________________?
What is the ratio of reactants and products in the chemical
equation?
__NaOH + __H2SO4 --> __Na2SO4 + __H2O -
Answer☑️
2:1:1:2
Quiz_________________?
What is Avogadro's number? -
Answer☑️
the number of ATOMS in 12g of Carbon-12
1 g = 6.022 × 1023 amu
3
, Quiz_________________?
What is the reducing agent in the following equation?
Mg(s) + 2HCl(aq) -> MgCl2(aq) + H2(g) -
Answer☑️
Mg
Quiz_________________?
Which arrangement accurately describes the standard entropy
values at different phases? -
Answer☑️
(s) < (l) < (g)
Quiz_________________?
What are the most stable isotopes? -
Answer☑️
2, 8, 20, 50, 82 or 126 protons
4
Study Guide (Latest
2026/2027 Update) 320
Questions & Answers | Grade
A | 100% Correct
Description
This StraighterLine Chem101 final exam is a Compilation of multiple latest
documents (Q-Bank) of 320- questions covering introductory chemistry
principles. It is cumulative, focusing on stoichiometry, atomic structure,
bonding, gas laws, and thermochemistry. A calculator and provided periodic
table are allowed.
Exam Description and Key Details
Format: 320 multiple-choice questions.
Access: Purchase through Stuvia and get instant pdf
Download
Resources Allowed: Scientific calculator and periodic
table (provided in Moodle).
Key Topics
Content: Covers fundamental chemistry topics including: Scientific Method &
Measurements: Sig figs, dimensional analysis, density, physical vs. chemical
changes. Atoms & Molecules: Atomic structure, electron configurations,
periodic table trends. Stoichiometry & Reactions: Balancing equations, mole
ratios, molarity, redox, titration. Bonding & Geometry: Lewis structures,
VSEPR theory, polarity. Thermochemistry & Gases: Ideal gas law, enthalpy,
state functions. Study Tips & Strategies Focus on Fundamentals: Review
1
, material from the beginning of the course, as early concepts are heavily
tested. Practice Calculations: Focus on stoichiometry, titration calculations,
and unit conversions (\(mL\) to \(L\), \(g\) to \(mol\)).Redox & Structure: Know
how to assign oxidation numbers and predict molecular geometry/polarity.
Exam Strategy: Questions are randomized; manage time wisely (approx. 1.5
minutes per question) and do not leave questions blank.
Quiz_________________?
total number of neutrons and protons in an atom; # protons + #
electrons -
Answer☑️
Mass Number
Quiz_________________?
Most nonmetallic elements are found in which block of the
periodic table? -
Answer☑️
p
Quiz_________________?
Ernest Rutherford disproved J.J. Thomson's plum-pudding model
of the atom by showing that... -
Answer☑️
Positive matter is concentrated in the central core
2
, Quiz_________________?
Plants use up copious amounts of which alkali metal, preventing
most of it from being washed out to sea? -
Answer☑️
Potassium
Quiz_________________?
What is the ratio of reactants and products in the chemical
equation?
__NaOH + __H2SO4 --> __Na2SO4 + __H2O -
Answer☑️
2:1:1:2
Quiz_________________?
What is Avogadro's number? -
Answer☑️
the number of ATOMS in 12g of Carbon-12
1 g = 6.022 × 1023 amu
3
, Quiz_________________?
What is the reducing agent in the following equation?
Mg(s) + 2HCl(aq) -> MgCl2(aq) + H2(g) -
Answer☑️
Mg
Quiz_________________?
Which arrangement accurately describes the standard entropy
values at different phases? -
Answer☑️
(s) < (l) < (g)
Quiz_________________?
What are the most stable isotopes? -
Answer☑️
2, 8, 20, 50, 82 or 126 protons
4
