Midterm

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SUNY Canton *

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Chemistry

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Feb 20, 2024

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Fwd: Julia Narrigan - CHE1070nline Midterm Exam Results Michael Babcock <mbabcock@sunyjefferson.edu> Wed 3/16/2022 3:28 PM To: Julia Narrigan <jnarrigan0705@live.sunyjefferson.edu> Michael J. Babcock Associate Professor of Chemistry Laboratory Sciences Department Jefferson Community College 1220 Coffeen Street, Watertown, NY 13601 Tel: (315)786-2428 Office: 2-117 Begin forwarded message: From: ClassMarker Results <do-not-reply@classmarker.com> Subject: Julia Narrigan - CHE1070nline Midterm Exam Date: March 12, 2022 at 8:07:41 PM EST To: mbabcock@sunyjefferson.edu Reply-To: ClassMarker Results <do-not-reply@classmarker.com > Results for: Julia Narrigan Taken from IP Address: 24.59.4.11 Group: Test: Score: Percentage: Duration: Date started: Date finished: CHE1070nline Midterm Exam CHE1070nline Midterm Exam 66.5 / 100 Points 66.5% 01:05:40 Sat 12 Mar 2022 19:02 Sat 12 Mar 2022 20:07
Email: jnarrigan0705@live.sunyjefferson.edu Access code: jnarrigan0705@live.sunyjefferson.edu Category Percentage Points CHE107 100% 2/2 Generic 65.8% 64.5 /98 Key: A tick or cross will show next to chosen answers. v Correctly answered X Incorrectly answered -» Missed correct option Note: Correct answers are highlighted to you in your emailed results, irrespective of your Test takers 'Results view' settings. Question 1 of 55 525 mL of water at 25°C (density = 0.997 g/mL) is placed in a container. The water is then cooled to form ice at 0°C (density = 0.917 g/mL). What is the mass and volume of the ice? Correct answer: D) You chose: D) A) 523 g and 525 mL
B) 527 gand 571 mL C) 527 gand 525 mL v D) 523 gand 571 mL E) None of these Points: 3/3 Question 2 of 55 Which scientist discovered the law of conservation of mass? Correct answer: E) You chose: D) A) Joule B) Proust C) Aristotle X D) Dalton = E) Lavoisier Points: 0/ 2 Question 3 of 55 The rule for writing electronic configuration that states "each orbital can hold up to 2 electrons with spins paired” is known as Correct answer: B) You chose: C)
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A) the Aufbau principle. = B) the Pauli exclusion principle. X C) Hund'srule. D) the noble gas rule. E) None of these Points: 0/1.5 Question 4 of 55 What is the maximum number of electrons that can occupy a 3d sublevel? Correct answer: C) You chose: C) A) 5 B) 3 v C) 10 D) 6 E) None of these Points: 1/ 1 Question 5 of 55 Which element has the highest ionization energy?
Correct answer: A) You chose: A) v A) Cl B) P C) Al D) Mg E) Na Points: 1/ 1 Question 6 of 55 A solid with a mass of 19.3 g is added to a graduated cylinder filled with water to the 25.0 mL mark. After the solid is added and sinks to the bottom, the water level rises to 35.8 mL. What is the density of the solid? Correct answer: C) You chose: C) A) 0.539 g/mL B) 0.560 g/mL v C) 1.79 g/mL D) 2.19 g/mL E) 8.50 g/mL Points: 2/ 2 Question 7 of 55
How many significant figures are in the following distance measurement: 3.400 x 10° mm? Correct answer: C) You chose: C) A) 2 B) 3 v C) 4 D) 5 E) The measurement is ambiguous and the number of sig. figs. cannot be determined. Points: 2/ 2 Question 8 of 55 A number of elements occur in nature as diatomic molecules. Which of the following does not? Correct answer: B) You chose: B) A) fluorine v' B) sulfur C) oxygen D) nitrogen E) All of these. Points: 1.5/1.5
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Question 9 of 55 Which particle has the highest mass? Correct answer: A) You chose: A) v’ A) atom B) electron C) proton D) neutron E) quark Points: 2/ 2 Question 10 of 55 Which of the following is characterized by definite volume, definite shape and is fluid? Correct answer: E) You chose: E) A) solid B) liquid C) gas D) plasma v' E) None of these Points: 2/ 2
Question 11 of 55 The thickness of the leg of an ant is 0.035 centimeters. How many millimeters is this? Correct answer: C) You chose: B) A) 3.5mm X B) 0.0035mm = C) 0.35mm D) 35mm E) None of these Points: 0/ 2 Question 12 of 55 Which of the following ions cannot exist because it does not obey the octet rule? Correct answer: B) You chose: C) A) 07 = B) Ca? X C) Na*’ D) s-2 E) All of these obey the octet rule.
Points: 0/ 1 Question 13 of 55 How many significant figures are in the following mass measurement: 0.00040800 kg? Correct answer: B) You chose: C) A) 2 = B) 5 X C) 8 D) 9 E) The measurement is ambiguous and the number of sig. figs. cannot be determined. Points: 0/ 2 Question 14 of 55 Which of the following is not a correct relationship? Correct answer: A) You chose: A) v A m X sH B) AH OC sH ©) AH OC AT
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D ) OC 1T E) They are all incorrect Points: 2/ 2 Question 15 of 55 How many naturally occurring elements exist? Correct answer: B) You chose: B) A) 121 v’ B) 88 C) 58 D) All the elements on the periodic table are naturally occurring. E) None of these. Points: 1/ 1 Question 16 of 55 Which compound contains three different elements in its chemical formula? Correct answer: A) You chose: A) v A) HNO; B) BaCl,
C) H,0 D) CaCI2 E) All of these. Points: 1.5/1.5 Question 17 of 55 Which of the following would be considered a homogeneous mixture? Correct answer: C) You chose: A) X A) water B) gold = C) saline solution D) saoil E) None of these Points: 0/ 2 Question 18 of 55 Where is most of the mass located in an atom? Correct answer: C) You chose: C) A) the proton
B) the neutron v' C) the nucleus D) the electron E) the extranuclear space Points: 2/ 2 Question 19 of 55 Which of the following temperatures represents absolute zero Correct answer: B) You chose: B) A) O°F v B) 0K C) 0°C D) None of these. E) All of these. Points: 2/ 2 Question 20 of 55 On the periodic table, horizontal rows are called to as Correct answer: B) You chose: D) and vertical columns are referred
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A) rows, columns = B) periods, groups C) columns, rows X D) groups, periods E) All of these. Points: 0/ 2 Question 21 of 55 How many cubic centimeters are equivalent to 500 mL of water? Correct answer: A) You chose: A) v A) 500 cm3 B) 0.500 cm3 C) 50 cm3 D) 100 cm® E) Not enough information is provided to determine the answer. Points: 2/ 2 Question 22 of 55 Who first proposed that matter was not continuous (atomic)?
Correct answer: D) You chose: D) A) Proust B) Aristotle C) Dalton v' D) Democritus E) None of these Points: 1/ 1 Question 23 of 55 How much heat energy is necessary to raise the temperature of 2.4 x 10° g of pool water 5.0°C? Correct answer: A) You chose: A) v A) 1.2 x103 kcal B) 4.8 x10% kcal C) 1.2 x10° cal D) 12 cal E) None of these. Points: 2/ 2 Question 24 of 55
Which of the following represents a weighted average of all naturally occurring isotopes of an element? Correct answer: A) You chose: A) v’ A) Atomic mass B) Atomic number C) Mass number D) Electronic configuration E) None of these. Points: 2/ 2 Question 25 of 55 What is the volume of a 7.043 g sample of alcohol which has a density of 0.7043 g/mL in correct sig. figs.? Correct answer: D) You chose: D) A) 10.0 mL B) 1.0x10*mL C) 10g v’ D) 10.00 mL E) None of these. Points: 2/ 2
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Question 26 of 55 Which of the following properties of kerosene is a chemical property? Correct answer: B) You chose: B) A) soluble in gasoline v' B) flammable with oxygen C) colorless liquid D) density = 0.730g/mL E) None of these. Points: 2/ 2 Question 27 of 55 Match the following sequence of elements names and symbols: Fluorine, Tin, Ag, Antimony, P, Sodium, Au Correct answer: D) You chose: D) A) FI, Sn, Gold, Sb, Lead, S, Silver B) F, Sn, Silver, Sb, Lead, S, Gold C) FI, Sn, Silver, Sb, Phosphorous, Na, Gold v' D) F, Sn, Silver, Sb, Phosphorous, Na, Gold E) None of these.
Points: 2/ 2 Question 28 of 55 45.70 km is equivalent to how many cm? Correct answer: C) You chose: C) A) 4.570x10°cm B) 457 x10°cm v C) 4570 x 108 cm D) 4.57 x 10 cm E) 4570 cm Points: 2/ 2 Question 29 of 55 Which of the following is the electronic configuration for an oxygen atom? Correct answer: B) You chose: A) X A) 1s22s22p,22p,? % B) 1s22522p,22p,'2p, C) 1s22522p23s? D) 1s22s23p,23p,'3p,]
E) None of these. Points: 0/ 1 Question 30 of 55 Which of the following is the longest distance measurement? Correct answer: A) You chose: E) = A) 2000 m B) 1 mile C) 1500 yards D) 1.609 km X E) All are the same distance. Points: 0/ 2 Question 31 of 55 Which subatomic particles are in the nucleus of an atom? Correct answer: A) You chose: A) v' A) proton & neutron B) proton & electron C) electron & neutron
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D) All of these. E) protons only Points: 1/ 1 Question 32 of 55 Which of the following represents the number of neutrons in carbon-137 Correct answer: E) You chose: A) X A) 6 B) 8 C) 14 D) 20 =» E) None of these. Points: 0/ 2 Question 33 of 55 Which of the following particles has a mass that is considered negligible compared to the others? Correct answer: B) You chose: B) A) atom v’ B) electron
C) proton D) neutron E) None of these. Points: 2/ 2 Question 34 of 55 A beaker containing 625 g of water, cooled in a refrigerator, loses 3,935 calories of heat. If the water began at a temperature of 12.5°C what was the temperature of the water after cooling? Correct answer: E) You chose: B) A) 6.4°C X B) 7.9°C C) 293.4K D) 268.4K = E) None of these. Points: 0/ 3 Question 35 of 55 Which of the following is considered a pure substance: Correct answer: D) You chose: D)
A) saline solution B) a homogeneous mixture C) a heterogeneous mixture v’ D) water E) None of these. Points: 2/ 2 Question 36 of 55 We are traveling from Knoxville, TN, to Helen, GA. The distance is approximately 290 km. Approximately how far is it in yards? (1.609m = 1mile) Correct answer: B) You chose: B) A) 466,000 yards v' B) 3.2x10° yards C) 265 yards D) 1.4x10° yards E) None of these Points: 2/ 2 Question 37 of 55 Which scientist discovered the law of conservation of energy?
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Correct answer: A) You chose: A) v’ A) Joule B) Proust C) Aristotle D) Dalton E) Lavoisier Points: 2/ 2 Question 38 of 55 Given the following information determine the state of matter for each substance at room temperature in the order given: water (boiling pt. = 100°C, melting pt. = 0°C), potassium (boiling pt. = 760°C, melting pt. = 63°C), bromine (boiling pt. = 59°C, melting pt. = -7°C), xenon (boiling pt. =-107°C, melting pt. =-112°C) Correct answer: E) You chose: B) A) liquid, gas, liquid, solid X B) liquid, solid, gas, gas C) gas, solid, liquid, gas D) liquid, gas, liquid, gas =» E) None of these. Points: 0/ 2 Question 39 of 55
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Which element would be considered a polyatomic element in nature? Correct answer: A) You chose: B) = A) oxygen X B) hydrogen C) neon D) argon E) None of these. Points: 0/ 1 Question 40 of 55 Which of the following temperatures is equivalent to -40°C? Correct answer: C) You chose: C) A) -25°F B) -40 K v C) 233K D) 313K E) None of these. Points: 2/ 2
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Question 41 of 55 The rule for writing electronic configuration that states "for a set of equal energy orbitals, each orbital is becomes half-filled before any of them are filled" is known as Correct answer: C) You chose: C) A) the Aufbau principle. B) the Pauli exclusion principle. v" C) Hund's rule. D) the noble gas rule. E) None of these Points: 1.5/1.5 Question 42 of 55 Which of the following samples having equal volume would have the greatest mass? Correct answer: A) You chose: A) v' A) gold (d = 19.3 g/cm?3) B) brass (d = 8.47 g/cm?3) C) aluminum (d = 2.71 g/cm3) D) water (d = 1.00 g/cm?3) E) all have the same mass if they all have equal volume
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Points: 2/ 2 Question 43 of 55 A soil sample would be an example of Correct answer: B) You chose: B) A) an element. v' B) a heterogeneous mixture. C) a homogeneous mixture. D) a compound. E) a pure substance. Points: 2/ 2 Question 44 of 55 Which scientist discovered the law of definite proportion? Correct answer: B) You chose: C) A) Joule = B) Proust X C) Aristotle D) Dalton E) Lavoisier
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Points: 0/ 2 Question 45 of 55 Strontium-90 is a radioactive isotope which is hazardous to humans. Which of the following is true about strontium-907? Correct answer: E) You chose: E) A) it has 52 protons B) it has 52 protons C) it has 90 neutrons D) it has 90 protons v' E) it has 38 protons Points: 2/ 2 Question 46 of 55 Which liquid sample will occupy the greatest volume? (Hint: water floats on chloroform) Correct answer: C) You chose: D) A) 100 g of water B) 100 g of chloroform = C) 250 g of water D) 250 g of chloroform
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X E) Not enough information is provided to determine the answer. Points: 0/ 2 Question 47 of 55 Ethanol and gold each absorb the same amount of heat energy at room temperature. If ethanol has a greater specific heat than gold which has the lowest temperature after heating? Correct answer: B) You chose: B) A) 250 g of gold v' B) 250 g of ethanol C) 100 g of gold D) 100 g of ethanol E) None of these. Points: 2/ 2 Question 48 of 55 Which of the following pairs of compounds can be used to illustrate the law of multiple proportions? Correct answer: D) You chose: D) A) CH4 and CO»
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B) ZnO and ZnCl, C) H»O and HCI v' D) NO and NO» E) NH4 and NH4Cl Points: 2/ 2 Question 49 of 55 Which of the following materials would be considered most compressible at room temperature: Correct answer: B) You chose: B) A) water v’ B) air C) steel D) copper E) mineral oil Points: 2/ 2 Question 50 of 55 Which scientist discovered the law of multiple proportions? Correct answer: D) You chose: E)
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A) Joule B) Proust C) Aristotle = D) Dalton X E) Lavoisier Points: 0/ 2 Question 51 of 55 Which group contains the least reactive elements on the periodic table? Correct answer: A) You chose: B) = A) noble gases X B) alkali metals C) halogens D) metalloids E) non-metals Points: 0/ 1 Question 52 of 55 The atomic mass of the element chlorine is 35.453 amu. Chlorine exists in nature as just two isotopes, CI-35 and CI-37. Which isotope is the most abundant in nature?
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Correct answer: A) You chose: A) v A) CI-35 B) CI-37 C) CI-36 D) Impossible to determine E) None of these Points: 2/ 2 Question 53 of 55 Which of the following represents the number of particles in the nucleus of an atom? Correct answer: C) You chose: A) X A) Atomic mass B) Atomic number = C) Mass number D) Electronic configuration E) None of these. Points: 0/ 2 Question 54 of 55 Which element has the most number of unpaired electrons in its orbitals?
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Correct answer: C) You chose: E) A) Na B) Mg % C) N D) O X E) F Points: 0/ 1 Question 55 of 55 The boiling point for liquid oxygen is 90.0 K. What is the boiling point in Fahrenheit? Correct answer: C) You chose: C) A) -361.4°F B) -329.4°F v C) -297.4°F D) -183.0°F E) -151.0°F Points: 2/ 2
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M9. Readings * OWLV2 | Assig X MindTap - Cen x g.cengage.com/static/nb/ui/evo/index.html?elSBN=9781337790840&id%3D299783426&snapshotld-785765& MindTap- Cen x G amu of ca-G x b My Question x + CENGAGE MINDTAP Chapter 8: Chemical Composition L. E AA Tools Problems 45. Calculate the percent by mass of each element in the following compounds. a. HC103 b. UF4 с. СаН2 d. Ag,S e. NaHSO3 f. MnO2
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MindTap-Cengage Learning X ISBN 9781305657571&nbld=3576712&snapshotld-3576712&id=1854206... A M req req O Search X Back 2310 g x My Grades-Fall 2023 TTU Introd X A Submit Answer References 237 g Use the References to access important values if needed for this question. A copy of your chemistry textbook is found to have a mass of 2310 grams. Using unit analysis, show what the mass of this copy of your chemistry textbook is in ounces. 12 oz 7. Unit Conversion: Metric/Standard: This is group attempt 1 of 5 Autosaved at 11:14 PM Oz Drag and drop your selection from the following list to complete the answer: 28.3 g 2.20 lb + () 16 oz Q Search this course 454 g Next 4x X C 11:14 10/8/2
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Content A ALEKS Bb in their sX Yuzu Re x J Labflow x 6 COVID- A Daily Cri x Among x 8 GivePuls x h Hulu | M x N Netflix Q Sc -> A www-awn.aleks.com/alekscgi/x/Isl.exe/1o_u-IgNslkr7j8P3jH-liJOkWvnm4w-aQ-rw-zRhgRnayfmbBs65spEliJ_PZNhkTHPk1BWXdqhu7TdbxSL8SoCI7Wd30JbNKN7SCncNRibwl Apps Blackboard O Mail - Ava Schied. 6 UAConnect e Biology Syllabus Labflow - Courses V Explore - HogSync e Packback it MyMercy - Login Netflix SafeAssign Sel O CHEMICAL REACTIONS Using a chemical equation to find moles of product from moles ... Ave Gaseous ammonia chemically reacts with oxygen (0,) gas to produce nitrogen monoxide gas and water vapor. Calculate the moles of oxygen needed to produce 1.5 mol of water. Be sure your answer has a unit symbol, if necessary, and round it to 2 significant digits. Explanation Check 2020 McGraw-Hill Education. All Rights Reserved. Terms of Use | Privacy Accessit olo 2
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lit View History Bookmarks Profiles Tab Window ALEKS ||| = ALEKS - Tiffany Te-L-Peng - L X C www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-liGBdp5ulp5VqUnMDyYPOVaX6q0CRPLZSQ5NDHtEP4AK_RE O ORGANIC OXIDATION AND REDUCTION Predicting the products of alkene ozonolysis Predict the major products of this organic reaction. Explanation Check Help C :0 + + T 1.03 1 2. DMS X 3 A Click and drag to start drawing a structure. Ⓒ2022 McGraw Hill LLC. All Rights Re
Chapter 10 homework Word O Search File Home Insert Draw Design Layout Juliann References Mailings Review View Help Calibri (Body) 11 - A^ A Aa v A E-E v'Ę, EE ¿ T ACCDC AaBbCcDc AaBbCc AABBCCC AaB OF Paste B I U - ab x, x A- dv Ar ==== E- &v - 1 Normal 1 No Spac. Heading 1 Heading 2 Title in Clipboard Font Paragraph Styles Ec How would each of the following change the rate the reaction shown here? 2NO (g) + 2H2 (g) (8) a. Adding some NO (g) , N2(g)+2H,0(g) (8) b. Decreasing the temperature C. Removing some H2 (g) d. Adding a catalyst D Focus Page 1 of 4 403 words 71% P Type here to search 12 1> 1>
Firefox Pile Euit View History DOUNTial kS Heip ... my.CSMD.edu Module 12 HW Ch NWP Assessme X T Module 9 HW Cha w NWP Assessment e Module 11 HW Cha wPNWP Assessmen O 8 https://education.wiley.com/was/ui/v2/assessment-player/index.html?launchld%3Db0085ec6-77d3-4053-89d4-c26a8188bel e Module 12 HW Chapter 21 - Selected Exercises Question 8 of 8 -/1 三 The enolate of a ketone can be treated with an ester to give a diketone. Drawa mechanism for this Claisen-like reaction and explain why an acid source is required after the reaction is complete. For the mechanism, draw the curved arrows as needed. Include lone pairs and charges in your answer. Do not draw out any hydrogen explicitly in your products. Do not use abbreviations such as Me or Ph. Me 1) LDA Mulc OEt 2) 3) H,0 Que Multist Quest Step 1 Multipar Draw step 1 of the mechanism. Questic Molecular Question CH, Multipart CH, CH, Viewing Q Multistep / Edit Drawing MacBook Air esc 30 D00 F4 FI F2 F3 FS A vo F10 %23 2$ & 2 3 4. 6 7 9 Q E R…
Bb Take Test: QUI A Ims.uhb.edu.sa/webapps/assessment/take/take.jsp?cours... لا تعيد السمكات إلى ا. . . الاثاد M Gmail O YouTube Human Biology Ch... A Apps Remaining Time: 15 minutes, 04 seconds. * Question Completion Status: 0.5 points Saved Question 6 Find the major product of following dehydration. OH CH3 CH,-CH-CH-CH2-CH3 + H20 CH3 OA CH2=CH-ĊH-CH2-CH3 OCH3 O B. CH3-C=c-CH2-CH3 OC. CH3-C-CH,- -CH2-CH2-CH3 O CH3 OD. CH3-C-CH-CH2-CH3 CH3 CH3-CH=C-CH2-CH3 » A Moving to another question will save this response. Question 6 of 10> .w. MacE
M9. Readings X * OWLV2 | Assig X * MindTap - Cen X MindTap - Cen X G amu of ca - Go X b My Questions engage.com/static/nb/ui/evo/index.html?elSBN=9781337790840&id%3D299783426&snapshotld%3D785765& C << CENGAGE MINDTAP Q Search this cour Chapter 8: Chemical Composition ž AA A Answer + 47. Calculate the percent by mass of the element listed first in the formulas for each of the following compounds. a. methane, CH4 b. sodium nitrate, NaNO3 c. carbon monoxide, CO d. nitrogen dioxide, NO2 e. 1-octanol, Cg H18 O f. calcium phosphate, Caz (PO4)2 g. 3-phenylphenol, C12 H10O h. aluminum acetate, Al(C,H,02), 48. Calculate the norgont h !!
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