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Chemistry 1151 ACS Exam Questions and Correct Answers/ Latest Update / Already Graded
solids 
atomic/molecular motion? 
atomic/molecular spacing? 
shape? 
volume? 
compressibility? 
Ans: oscillation/vibration about a fixed point 
close together 
definite 
definite 
incompressible 
liquids 
atomic/molecular motion? 
atomic/molecular spacing? 
shape? 
volume? 
All rights reserved © 2025/ 2026 | 
 Page | 2 
 
All rights reserved © 2025/ 2026 | 
compressibility? 
 Ans: free to move relative to one another 
close together 
indefinite 
definite 
incompressib...
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solids 
atomic/molecular motion? 
atomic/molecular spacing? 
shape? 
volume? 
compressibility? 
Ans: oscillation/vibration about a fixed point 
close together 
definite 
definite 
incompressible 
liquids 
atomic/molecular motion? 
atomic/molecular spacing? 
shape? 
volume? 
All rights reserved © 2025/ 2026 | 
 Page | 2 
 
All rights reserved © 2025/ 2026 | 
compressibility? 
 Ans: free to move relative to one another 
close together 
indefinite 
definite 
incompressib...
Chemistry 132 ACS exam study notes Questions and Correct Answers/ Latest Update / Already Graded
Where is the mass number located on an element symbol? 
Ans: the superscript 
Mass number 
Ans: protons + neutrons 
Where is the atomic number located on an element symbol? 
Ans: the subscript 
Atomic number 
Ans: number of protons 
Isotopes 
Ans: elements with different numbers of neutrons 
How to solve for an empirical formula 
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Ans: Assume percentages are grams, convert to moles, divide 
each number by the smallest number of moles to...
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Where is the mass number located on an element symbol? 
Ans: the superscript 
Mass number 
Ans: protons + neutrons 
Where is the atomic number located on an element symbol? 
Ans: the subscript 
Atomic number 
Ans: number of protons 
Isotopes 
Ans: elements with different numbers of neutrons 
How to solve for an empirical formula 
All rights reserved © 2025/ 2026 | 
Page | 2 
Ans: Assume percentages are grams, convert to moles, divide 
each number by the smallest number of moles to...
Chemistry 112 ACS Flashcards Questions and Correct Answers/ Latest Update / Already Graded
Energy (decreases/increases) with increasing wavelength? 
Ans: decreases 
Energy (decreases/increases) with increasing frequency? 
Ans: increases 
The energy gaps between levels (decrease/increase) as the energy 
levels increase (n=1 to n=2 to n=3, etc.) 
Ans: decreases 
The O-Si-O bond angles in SiO₂ (quartz) are closest to... 
Ans: 110° 
A molecule with 0 lone pairs and 2 bonding electron pairs would be? 
Ans: linear 
A molecule with 1 lone pair and 2 bonding electron pairs would...
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Energy (decreases/increases) with increasing wavelength? 
Ans: decreases 
Energy (decreases/increases) with increasing frequency? 
Ans: increases 
The energy gaps between levels (decrease/increase) as the energy 
levels increase (n=1 to n=2 to n=3, etc.) 
Ans: decreases 
The O-Si-O bond angles in SiO₂ (quartz) are closest to... 
Ans: 110° 
A molecule with 0 lone pairs and 2 bonding electron pairs would be? 
Ans: linear 
A molecule with 1 lone pair and 2 bonding electron pairs would...
Chem 1212 ACS Final practice questions Questions and Correct Answers/ Latest Update / Already Graded
Which of the following is an example of a Brønsted-Lowry base in 
water? 
A) H3O+ 
B) CO2 
C) NH3 
D) HCl 
Ans: NH3 
What is the temperature in Fahrenheit when it is 35*C outside? 
A) 67 
B) 95 
C) 63 
D) 75 
Ans: 95 
In a chemical equation, the reactants are on which side of the arrow? 
A) right 
All rights reserved © 2025/ 2026 | 
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B) left 
C) neither right nor left 
D) both right and left 
Ans: Left 
What does the law of conservation of mass state? 
A) all mat...
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Which of the following is an example of a Brønsted-Lowry base in 
water? 
A) H3O+ 
B) CO2 
C) NH3 
D) HCl 
Ans: NH3 
What is the temperature in Fahrenheit when it is 35*C outside? 
A) 67 
B) 95 
C) 63 
D) 75 
Ans: 95 
In a chemical equation, the reactants are on which side of the arrow? 
A) right 
All rights reserved © 2025/ 2026 | 
Page | 2 
B) left 
C) neither right nor left 
D) both right and left 
Ans: Left 
What does the law of conservation of mass state? 
A) all mat...
CHEM 1030 ACS Final Exam Study Guide Questions and Correct Answers/ Latest Update / Already Graded
T or F? Non-zero numbers ARE significant 
Ans: True 
T or F? Leading zeros ARE significant. 
Ans: False. Leading zeros are NOT significant 
T or F? Zeros between non-zero numbers ARE significant 
Ans: True 
T or F? Trailing zeros are NOT significant. 
Ans: False. Trailing zeros ARE significant 
How many significant figures are in 0.050? 
Ans: 2 
How many significant figures are in 1.0056 
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Page | 2 
Ans: 5 
How many significant figures are in 0.0...
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T or F? Non-zero numbers ARE significant 
Ans: True 
T or F? Leading zeros ARE significant. 
Ans: False. Leading zeros are NOT significant 
T or F? Zeros between non-zero numbers ARE significant 
Ans: True 
T or F? Trailing zeros are NOT significant. 
Ans: False. Trailing zeros ARE significant 
How many significant figures are in 0.050? 
Ans: 2 
How many significant figures are in 1.0056 
All rights reserved © 2025/ 2026 | 
Page | 2 
Ans: 5 
How many significant figures are in 0.0...
CHEM 211 ACS Exam Final Questions and Correct Answers/ Latest Update / Already Graded
physical properties 
 Ans: the characteristics of a substance that can be observed or 
measured without changing the substance - color - melting point -electrical conducivity - density 
 
physical change 
 Ans: A change in a substance that does not involve a change in 
the identity or composition of the substance 
 
Chemical properties 
 Ans: A characteristic of a substance that appears as it interacts 
with, or transforms into, other substances. - flammability - corrisiveness - react...
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physical properties 
 Ans: the characteristics of a substance that can be observed or 
measured without changing the substance - color - melting point -electrical conducivity - density 
 
physical change 
 Ans: A change in a substance that does not involve a change in 
the identity or composition of the substance 
 
Chemical properties 
 Ans: A characteristic of a substance that appears as it interacts 
with, or transforms into, other substances. - flammability - corrisiveness - react...
CHEM 111 ACS Final Questions and Correct Answers/ Latest Update / Already Graded
chemistry 
 Ans: the study of matter and how it changes 
 
matter 
 Ans: Anything that has mass and takes up space 
 
elements 
 Ans: molecules composed of one kind of atom; cannot be 
broken into simpler units by chemical reactions. 
 
atoms 
 Ans: The basic building blocks of matter 
 
property 
 Ans: A characteristic that defines the value, appearance, 
and/or state of an object. 
 
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molecule 
Ans: A group of atoms bonded together 
gas 
Ans: A state of matter wit...
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chemistry 
 Ans: the study of matter and how it changes 
 
matter 
 Ans: Anything that has mass and takes up space 
 
elements 
 Ans: molecules composed of one kind of atom; cannot be 
broken into simpler units by chemical reactions. 
 
atoms 
 Ans: The basic building blocks of matter 
 
property 
 Ans: A characteristic that defines the value, appearance, 
and/or state of an object. 
 
Page | 2 
molecule 
Ans: A group of atoms bonded together 
gas 
Ans: A state of matter wit...
Chem 106 ACS final Questions and Correct Answers/ Latest Update / Already Graded
Molality (m) 
Ans: mol solute/kg solvent 
Molarity (M) 
Ans: moles of solute/liters of solution 
Mole fraction 
Ans: moles of A/(moles of A + moles of B) 
volume percent 
Ans: (ml solute/ml solution) x 100 
mass percent 
Ans: (g solute/g solution) x 100 
London Dispersion Forces 
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Page | 2 
Ans: constant motion of electrons and the creation of 
instantaneous dipoles 
Dipole-dipole forces 
Ans: attractions between oppositely charged regions of p...
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Molality (m) 
Ans: mol solute/kg solvent 
Molarity (M) 
Ans: moles of solute/liters of solution 
Mole fraction 
Ans: moles of A/(moles of A + moles of B) 
volume percent 
Ans: (ml solute/ml solution) x 100 
mass percent 
Ans: (g solute/g solution) x 100 
London Dispersion Forces 
All rights reserved © 2025/ 2026 | 
Page | 2 
Ans: constant motion of electrons and the creation of 
instantaneous dipoles 
Dipole-dipole forces 
Ans: attractions between oppositely charged regions of p...
Chapter 26 Advanced Coding Questions and Correct Answers/ Latest Update / Already Graded
consultation 
 Ans: On what basis are the dermatology codes usually reported 
by the dermatologist who sees patients in the office? 
 
electromyography 
 Ans: What does the abbreviation EMG stand for? 
 
parameters 
 Ans: What is measured while sleep testing is conducted? 
 
noninvasive 
 Ans: The cardiovascular subsection contains diagnostic and 
therapeutic procedures and services that are primarily divided 
as to whether the procedures or services are invasive or? 
 
tonometry ...
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consultation 
 Ans: On what basis are the dermatology codes usually reported 
by the dermatologist who sees patients in the office? 
 
electromyography 
 Ans: What does the abbreviation EMG stand for? 
 
parameters 
 Ans: What is measured while sleep testing is conducted? 
 
noninvasive 
 Ans: The cardiovascular subsection contains diagnostic and 
therapeutic procedures and services that are primarily divided 
as to whether the procedures or services are invasive or? 
 
tonometry ...
Chapter 17 Otorhinolaryngologic surgery Questions and Correct Answers/ Latest Update / Already Graded
what is the name of the wax that is normally produced and found 
within the ear canal? 
Ans: cerumen 
what is the term for creating a surgical opening into the tympanic 
membrane? 
Ans: myringotomy 
which of the following is NOT an ossicle found in the middle ear? 
Ans: cochlea 
Which cranial nerve may be damaged by growth of a cholesteatoma? 
Ans: seventh (VII) 
Walters, Caldwell, lateral, and submental radiographic views are used 
to establish diagnosis for which anantomical area? ...
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what is the name of the wax that is normally produced and found 
within the ear canal? 
Ans: cerumen 
what is the term for creating a surgical opening into the tympanic 
membrane? 
Ans: myringotomy 
which of the following is NOT an ossicle found in the middle ear? 
Ans: cochlea 
Which cranial nerve may be damaged by growth of a cholesteatoma? 
Ans: seventh (VII) 
Walters, Caldwell, lateral, and submental radiographic views are used 
to establish diagnosis for which anantomical area? ...
Certified Healthcare Interpreter (CCHI) Exam – Complete Study Guide with Vocabulary, Questions & Answer Keys
Multifamily Housing Specialist Certification – Quadel, HUD Compliance Training – Complete Exam Material
FCIC/NCIC Certification Questions and Correct Answers (2025/2026) | Criminal Justice Information Systems, Officer Use, and Legal Procedures
CLEAN Certification Exam – Questions and Correct Answers (2025/2026) | Criminal Justice Network Access, NCIC Usage, and Record Management
BKAT Study Questions and Correct Answers/ Latest Update / Already Graded