M02 Quiz_ Chapter 3_ 55P-Spring 2024-Introductory Chemistry I

I am curious if someone could check these answers for me? I believe they turned out incorrect and am curious to see what I need to do to fix them. Thanks!

4,6,7,8) Question 19 of 20 (5 points) Question Attempt: 1 of 1 Time Remaining: 30:47 Hannah 10 = 11 = 12 =13 =14 =15 = 16 17 18 19 20 Predict the reactants of this chemical reaction. That is, fill in the left side of the chemical equation. Be sure the equation you submit is balanced. (You can edit both sides of the equation to balance it, if you need to.) do Note: you are writing the molecular, and not the net ionic equation. - CaBr, (aq) + H,O(1) Submit Assignment Continue Accessibility Privacy Center 2021 McGraw Hill LLC All Rights Reserved. Terms of Use II

26) The floor tiles in SE 27 are about 1 square foot and the lab is about 25 tiles wide and about 36 tiles from front to back. When the emergency shower was demonstrated, in 10. seconds the water in the trash can was about 1 foot deep. One student estimated this was 2.5 gallons. Estimate how deep the room will get in inches after a 15 minute shower. List 3 simplifving assumptions you make in this calculation rea L-36 Tile fiDw ill it cost2 The density of gold is 27l An artist plans to apply gold leaf to a painting with an area of 2.32 f? and a thickness of 1.50

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Methods of Analysis Test #1: Polarity, or Effect of a charged rod on a stream of liquid: This test was used to determine the relative polarity of the unknown liquid. The liquid was allowed to run out of a buret and a charged rod was brought up next to the stream. The observations were reported as to whether or not the stream of liquid responded to the charged rod and to what degree. Try this at home with water and a plastic spoon. Rub the plastic spoon against a sweater and move it close to a small stream of water running out of your faucet! Test #2: Volatility, or Rate of Evaporation: A thermometer probe was wrapped with a strip of filter paper. This assembly was soaked in one of the liquids for one minute. The probe was removed, and the temperature change was monitored as the liquid evaporated. The results are given in Graph 1 below. (See Graph)   Graph 1: The curves generated of the change in temperature over time for the substances acetone, hydrogen monoxide, ethylene glycol,…

Time required to elute substance Z when N = 1000 = when N = 2000 The two quantities cannot be compared due to insufficient information. when N = 1000 > when N = 2000 %3D when N = 1000 < when N = 2000

Simplify. Write each answer in scie 17) (5.4x 10")는 (7X/0") 19) (6 x 10°(4 x 10-1) 21) (7.68 x 10:)는 (9x/0°)

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if you could please help! i submitted this previously and was told that it looks incomplete. the questions are complete and there is no additional information to upload with the questions. again there are 6 questions and i have done a majority of them. i really just need help with question 2 and 3, however, if you could look at my answers for the questions i did and tell me if they are correct i will gladly rate you! thank you so much. I apologize if it is small, i made the font smaller to fit everything on one picture

Good Morning, Please review the question and explain in detail how I come up with the correct answer. This is an example of what should be on my quiz tomorrow. So PLEASE explain clearly and plainly. We are also able to use our scientific calculators as well.  Thanks

Ab GL B art 3 SHOW WORK ond Shipp: Attempt 1 Hu/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=5956136&isprv=&drc=0&qi=5726766&cfql= Answer units ▷ Add attachments to support your work Question 4 (0.5 points) SHOW YOUR WORK. G **N*-*OO If 35.45 mL of 0.8121 M sodium carbonate solution reacts with excess lead (III) nitrate solution to form aqueous sodium nitrate and solid lead (III) carbonate, how many grams of lead (III) carbonate is formed? On your paper with your name and date: 1. Go from ionic compound name to formula (review Chp 5 as much as needed) 2. Balance the equation (review Chp 7 if needed). 3. Do the calculation showing ALL units, just like I did in solution stoichiometry lecture. a #

Class 11 chemistry please explain the reason of correct and incorrect answer// Fast

Color is an important indicator of temperature and is used to adjust a lab Bunsen burner. Match the color of the flame with the temperature. Cool temperature Medium temperature Hot temperature Answer Bank blue flame with a tall blue cone blue with a short, bright blue flame orange-colored flame that moves and flickers

Blanks options are 0,1,2,3,4,5,6 solve the attached question

Question 4 is needed to answer question 5. I had provided the answers for question 4. I just struggled finding the answers for 5 and I was hoping someone would be able to explain/show the steps in writing. Thank you!

Please answer subparts d and e

please answer the last 3 sub-parts

Christiana Taylor CT Comments Editing ✓ Share File ▾ 11 W AutoSave Off 周り Home Insert Draw Design Aptos (Body) Assignment 3-1 Saved to this PC ✓ Layout References Mailings Review Search View Help Find ✓ A A Aa P く く = = ↓¶ Normal No Spacing Heading Heading 2 Paste B I U く ab x² A ✓ く Clipboard Font ☑ Paragraph ☑ Styles Replace Select ▾ Editing Page 10 of 10 1 76°F Clear 254 words EX 7. Propose how you might synthesize the following molecules from an alkyl halide and a nucleophile. A. B. OH Text Predictions: On Accessibility: Investigate 2 19 Q Search W Dictate Editor Add-ins Voice Editor Add-ins Focus > + 100% 7:59 PM 4/2/2024

es-2021S2 Allison.E CHEM X 2.ga.us/d21/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=2593077&isprv=&drc%3D1&qi=2478023&cfql=0&dnb%3D08fi lancer O Khan Academy E DeltaMath musictheory.net - E. Ca Desmos | Scientific. g Final Exam Ciara Smith: Attempt 1 D View hint for Question 18 Question 19 (3 points) Explain how OCompound A and Compound B will dissolve in water using the correct vocabulary including solvation, dissociatic n, ionic, and covalent. O Mg Cl CH Compound A Compound B hp 二

15 - #13. Be sure each entry you write includes the correct number of significant digits. Thumbs up if you do it correctly!

2 W S Type your answer to the following: Consider the steps the student took in the following scenario. Then describe anything the student did wrong and how it would have affected the student results (too high, low, or unchanged) and why. X A student forgot to weigh the filter paper prior to filtering the salt from the sand. To make up for this, the student weighed a different filter paper from the box and used that mass in the calculations. Edit View Insert Format Tools Table 12pt Paragraph # 3 80 F3 E D $ 4 C 888 R LL F BI U % 5 V F5 T G MacBook Air 6 F6 Y B T² & 7 H F7 A U N * 00 8 J 1 ( 9 M K O F10 L X P

Chrome File Edit View History Bookmarks People Tab Window Help 89% Mon 9:33 PM Student Students Homework DUE Monday, April X Madeline Carlo - CHM 112 HW X + A docs.google.com/document/d/10m8ZGoSGXKFFcl4KWhwOLh8bFpbtPAmvTWjJPnj15U4/edit Madeline Carlo - CHM 112 HW DUE Monday April 12, 2021 ☆ D TURN IN Share File Edit View Insert Format Tools Add-ons Help Last edit was 3 days ago 100% В IUA Normal text Arial 11 + Editing 31 1 III I III 1 I 2 3 1 I 4 5 II II 6 1 III | MnO, (aq) + 8H*(aq) + 5e → Mn²*(aq) + 4 H,O(1) Al(s) → Alš*(aq) + 3 e + .ЗА. Assign oxidation numbers to all metals whether they be elemental, monatomic ion, or in a polyatomic ion, in questions (1) and (2), .3B. Tell what is being oxidized and what is being reduced in each reaction in questions (1) and (2). .3C. Identify each half-reaction in question (2) as oxidation half-reaction or reduction half-reaction. .4. Do you need to know the temperature to calculate AG° from E°? Explain. > Dictionary CC Aa ... !! II

Chrome File Edit View History Bookmarks People Tab Window Help 89% Mon 9:33 PM Student Students Homework DUE Monday, April X Madeline Carlo - CHM 112 HW X + A docs.google.com/document/d/10m8ZGoSGXKFFcl4KWhwOLh8bFpbtPAmvTWjJPnj15U4/edit Madeline Carlo - CHM 112 HW DUE Monday April 12, 2021 ☆ D TURN IN Share File Edit View Insert Format Tools Add-ons Help Last edit was 3 days ago 100% В IUA Normal text Arial 11 + Editing 31 1 III I III 1 I 2 3 1 I 4 5 II II 6 1 III | .5. For a reaction in which E° = -0.100 V and n = 1 mol electrons / mol, calculate AG°. State + your assumptions, if any, about temperature. .6. For a reaction in which E° = 0.100 V andn = 1 mol electrons / mol, calculate AG° at 25°C. Dictionary CC Aa ... !!! II III

Can someone answer nos. 5 to 10? Thank you very much! If it's not too much, provide an explanation for each number. Thanks!

Chrome File Edit View History Bookmarks People Tab Window Help 89% Mon 9:32 PM Student Students Homework DUE Monday, April X Madeline Carlo - CHM 112 HW X + A docs.google.com/document/d/10m8ZGoSGXKFFcl4KWhwOLh8bFpbtPAmvTWjJPnj15U4/edit Madeline Carlo - CHM 112 HW DUE Monday April 12, 2021 ☆ D TURN IN Share File Edit View Insert Format Tools Add-ons Help Last edit was 3 days ago 100% Normal text Arial 11 B IU A Editing 31 1 III I 3 III I 4 III| I 5 II II I 7 II I| .1. Refer to the table of standard reduction potentials. Standard Reduction Potentials at 25 C Reduction Half-Reaction (V) FAg + 2 € H2O{aq) + 2 H*(aq)+ 2 6 Mno,taq) + 8 H*(aq) + 5 & Clalg) + 2 e CrOFMaq)+ 14 H*(aq) + 6 6- Ozlg + 4 H*(aq) + 4 & Bra() + 26 Ag*(aq) + e Fe*(aq) + e Ozl9) + 2 H'(aq) + 2 € 2(s)+ 26 Ozlg) + 2 HO) + 46 Cu (aq) + 2 € Sn" (ag)+ 2 6 2 P(aq) 2 H2O() → Mn(aq) + 4 H;0() →2 cr(aq) 2 Cr (aq)+ 7 H0() →2 HO() 2 Br(aq) Ag(s) » Fe*(aq) →H;Oz(aq) →2 F(aq) →4 OH"(aq) 2.87 1.78 1.51 1.36 1.33 3. 1.23 1.09 0.80 0.77…

Please answer the rest. they are very short answers. Thank you so much. final answ is enough. need 1,2,6

Need help with 6. Unsure why got rejected as this is a pre lab question and is not graded. Our lab itself is what is graded. We then follow it by post questions.

adds-up to 100. You may use the periodic table previously provided, a calulator and clean scrap paper. Timed Test This test has a time limit of 2 hours.This test will save and submit automatically when the time expires. Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. Multiple Attempts Not allowed. This test can only be taken once. Force Once started, this test must be completed in one sitting. Do not leave the test before clicking Save and Submit. Completion Your answers are saved automatically. Remaining Time: 1 hour, 58 minutes, 38 seconds. * Question Completion Status: A Moving to another question will save this response. Question 4 A sodium chloride solution is 38% NaCl by mass and has a density of 1.12 g.ml, determine: The Molarity of the solution The molality of the solution The mole fraction of water A Moving to another question will save this response.

Do questions 6,7,8 and 9. This is not graded. It is a study guide.

Please help me, there are 2 parts attached as 2 screenshots  and double and triple check your answers previous tutors have given me incorrect answers. The previous tutor raised their suspicion that these problems will be graded, I can assure you these are just problems for me to practice NOT for a grade, I just wanted to see if i get the right answer.

What are the applications of analytical chemistry?

Please confirm if my answer is correct or not. Due to the need for this to be correct I would like you to provide me with a confidence score in you answer on a scale from 1 to 10 how confident are you in your answer. Please be sure to double check your answer