Download Chemistry 210 Exams 1-8 and Final Exam: Practice Quizzes with Answers and more Exams Organic Chemistry in PDF only on Docsity!
PORTAGE LEARNING CHEM 210 EXAMS 1-8 FINAL EXAM
2025 /ACTUAL EXAMS WITH 200+ EXAM QUIZS AND
CORRECT VERIFIED ANSWERS/LATEST UPDATE- 2025
QUIZ 1
3 / 3 pts True or False: According to the Module, a compound with a molecular mass of 1, g/mol isconsidered a macromolecule. True FEEDB ACK False QUIZ 2 3 / 3 pts True or False: Biomolecules can have only two functional groups. True FEEDB ACK False QUIZ 3 3 / 3 pts True or False: The following functional group is an alcohol. True FEEDB ACK
False QUIZ 4 3 / 3 pts True or False: In a eukaryotic cell, the organelles called peroxisomes serve the purpose ofdigesting macromolecules. True FEEDB ACK False QUIZ 5 3 / 3 pts True or False: Carbon dioxide has a linear molecular shape AND has a bond angle of 109.5o. True FEEDB ACK False QUIZ 6 3 / 3 pts Of the following, is not a property of carbon.forming covalent bonds triple bond formation FEEDBACK possessing five valence electrons reacting to form long chains called polymersforming multiple bonds QUIZ 7 3 / 3 pts Which of the following is an element not typically found in living organisms? N FEEDB ACKHe
QUIZ 10
0 / 3 pts A is a chemical formula that does NOT show the C-H and C-C bonds. You FEEDBACK wered Covalent formula Line bond formula Empirical formula Kekule’ structure Correct FEEDBACKwer Condensed formulaQUIZ 11 3 / 3 pts A collection of two or more macromolecules uniting is called a. FEEDBACK Supramolecular complex Monomer Macromolecular structureDimer Kekule’ complex QUIZ 12 3 / 3 pts An organic compound with this structure, C=C, contains a functional group. Alkane
FEEDB
ACK
Alkene Alkyne Alcohol Both b and d QUIZ 13 3 / 3 pts Scientists refer to as the “super glue” of thechemistry. FEEDBACK C Co Na N O QUIZ 14 3 / 3 pts What molecule is most important for energy storage in cells? Creatine mitochondri aDNA RNA FEEDB ACK ATP QUIZ 15 3 / 3 pts
Lewis structure Structural formula None of theseQUIZ 18 3 / 3 pts When writing an organic functional group, scientists often write an “R” as part of the structure.What does the R indicate? A string of carbon atoms Radon Routine carbon atomFEEDBACK Rest of the moleculeNone of the above QUIZ 19 3 / 3 pts According to the module, the study of NON-carbon compounds is referred. Organic chemistry FEEDBACK Inorganic chemistry Biochemistry Environmental chemistryNone of the above. QUIZ 20 3 / 3 pts
Which of the following is not a functional group discussed in this module?Alcohol Amine Keton e Aldehyd e FEEDBA CK All of these were discussed.QUIZ 21 3 / 3 pts Which number would be closest to the approximate number of ribosomes in an E. coli cell?
r Cytoskeleton
Both Cell wall and Cytoskeleton QUIZ 24 3 / 3 pts The molecule linked to the medical condition of gout is. FEEDBACK Uric acid Luciferin Luciferase Glucose Glycine QUIZ 25 3 / 3 pts About how many different elements are found in living organisms? 9 FEEDB ACK 30 50 68 92 QUIZ 26 3 / 5 pts (Short response) Explain the common similarity in all prokaryotic and eukaryotic cells. Give abrief explanation of the similarity. Your FEEDBACKwer: The common similarity between prokaryotic and eukaryotic cells are they both contain cells, acell membrane and ribosomes.
call these large molecules polymer. 4. Lastly, carbon can form cyclic structures, which arealso called ring compounds. Give one more property of carbon.QUIZ 29 4 / 5 pts (Short response) How does organic chemistry differ from inorganicchemistry? Your FEEDBACKwer: Organic chemistry is focues on the chemical and physical properties of carbon and inorganicchemistry focues on non organic compounds. Organic chemistry is the study of the carbon-based compounds. Inorganic chemistry is thestudy of all other elements, but carbon. There is no need to have separate sub- disciples fororganic and inorganic chemistry, but for historical and organizational reasons the difference exists. Include the non-carbon elements in your defintion of inorganic.QUIZ 30 0 / 5 pts (Short response) Biochemists study the communication within and among organisms. Accordingto the module, what are two other aspects of living organisms that biochemists study? Your FEEDBACKwer: Bichemists study carbs and proteins in living organism along with chemistry and biology. Alsoluciferin i studies and luciferase. In the module, biochemists also study the structure and function of biomolecules and thechemical reactions of organisms. Be more specific here. This is related to the homework problems and module material.
EXAM 2
QUIZ 1
3 / 3 pts The pH of a solution of 0.0010 M NaOH is: 1 FEEDB ACK 11
[Kw=[H+][OH-] = 1.0 x 10 -^14 ; [H+][0.0010] = 1.0 x 10 -^14 [H+]=1.0 x 10 -^11 ; pH=-log[1.0 x 10 -^11 ;]=11] 8 0 14 QUIZ 2 3 / 3 pts Water is a unique molecule. Which of the following contributes to water’s unique place in thechemical world? The geometry of the moleculeThe polarity of the O-H bonds The ability of water molecules to hydrogen bond The bond angle of waterFEEDBACK All of the FEEDBACKwers are correctQUIZ 3 0 / 3 pts The bent shape of water is due to. The dipole arrows in a water molecule The electronegativity difference between hydrogen and oxygenYou FEEDBACKwered The unequal electron sharing between hydrogen and oxygenCorrect FEEDBACKwer The unshared electron pairs on the oxygen atomNone of the FEEDBACKwers are correct
Correct FEEDBACKwe r2. QUIZ 6 3 / 3 pts If the Ka of an acid is 5.63 x 10 -^3 , what is the pKa?
FEEDBACK
[pKa = - log(5.63 x 10 -^3 ) = 2.25]5.
QUIZ 7 3 / 3 pts List the acids in DECREASING order of strength (strongest to weakest): Nitrous acid (Ka = 4.0 x 10 -^4 ); acetic acid (Ka = 1.7 x 10 -^5 ); phosphoric acid (Ka = 7.3 x 10 -^3 ) Nitrous acid, acetic acid, phosphoric acid Acetic acid, nitrous acid, phosphoric acidFEEDBACK Phosphoric acid, nitrous acid, acetic acid Acetic acid, phosphoric acid, nitrous acidNone of the above QUIZ 8 0 / 3 pts Elemental iodine (I 2 ) is a solid at room temperature. What is the dominant attractive force thatexists between I 2 molecules in the solid? Correct FEEDBACKwer
C
B
Cl P FEEDB ACKN QUIZ 11 3 / 3 pts In a bond between P and Cl, there exists a difference in electronegativity resulting in partial positive and partial negative charges. If a dipole arrow where added to this structure, which waywould the arrow point? The arrow points from Br toward NFEEDBACK The arrow points from N toward Br Two arrows; one pointed in each direction There would not be a dipole arrow in this case.None of the above QUIZ 12 3 / 3 pts The following reaction occurs in glues purchased from hardware stores. Customers use thisproduct to glue plastic together. Epoxy (l) + hardener (l) ⟶ Glue (s) + heat given off
What is the sign (+ or - ) of the change in Δ G and Δ H? A) Δ G is (+) and Δ H is (-) B) Δ G is (-) and Δ H is (-) C) Δ G is (-) and Δ H is (+) D) Δ G is (+) and Δ H is (+) E) None of the above A FEEDB ACKB C D E QUIZ 13 3 / 3 pts Which of the following is the free-energy change of a reaction? A) Δ G B) Δ S
