W02 Exam_ Chemical and Physical Hazards _ Environmental Health

Which one is it?

Which one is it?

Answer question number 7 on the attached document

Please do question 5 for me and please don’t return in it just write one sentence for each box

please help and show the equations! thank you.

口 A docs.google.com Classroom | Google for Education Alchemy Lesson 20 & 21 Worksheet Andres Carrill Andres Carrillo - Alchemy Lessons 20 & 21 Worksheet Update Apple ID S Some account servi available until you sig File Edit View Insert Format Tools Add-ons Help Last edit was 2 days ago 100% Normal text Arial 11 BIUA E = E = EE E - E E X 1 2 3 4 .. 6 I 7 O 8 1 IC 5 AIV-20: Getting Connected (Writing lonic Compounds) Part 1: Putting together lonic Compounds lonic compound Metal Number of cation nonmetal number of anion total total charge = 0 valence valence number of electrons electrons valence electrons NaF, sodium fluoride Na Na + (+1)+(-1) = 0 F- 8. MgO, magnesium oxide Mg 02- (+2) + (-2) = 0 MgCl2, magnesium chloride Mg CI 7 16 (+2) + 2(-1) = 0 Ne, neon Ne 8 BeF2, beryllium fluoride Be MgS, magnesium sulfide CaCl,, calcium chloride Na Br K Se Al Al203, aluminum oxide Al Al F

Please help

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

Could you please help me format this question, I've been stuck on it for some time now.

! 9 a alt ← Z If you live to be approximately 83 years old, how many hours long was your life? Assume a year is exactly 365 days. @ 2 W S →> X #m 3 e d C с $ 4 r f % 5 V t g Oll A 6 DELL b y h & 7 O n u j * 00 O m i k ( 9 < 4 O alt ) O 1 P ◆ ctrl : - ; { [ ? 1 +11 = I } bac 1

what is the concentration of the unknown sample using serial diluitions: 0.05M 1.7472nm, 0.025M 0.8569nm, 0.0125M 0.4167nm, 0.00625M 0.1958nm the epsilon value is 0.0101 and l is 1 cm

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…

ter 9- CHEM A054 520 2 x Question 12 - Chapter 9 part 2 X с Chapter 9 part 2 Homework i 12 1 points ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%25 8 01:46:13 eBook Hint Print References Mc Graw Hill CH6_Chem103 - Kenai Peninsu X + °C Determine the freezing point of an aqueous solution that is 0.584 m sucrose. Saved DU

phs.blackboard.com/webapps/assessment/take/take.jsp?course_assessment_id%3D 36688_1&course_id%3D_31958 1&content_id%3_1130567_1&- 8r 10 13 140 15 16 20 11 12 17 18 19 20 A Moving to another question will save this response. Quèstion 6 Select the statement that is not supported by the following equation: q=0=(mwater)(Cwater)(ATwater)+ (mmetal)(Cmetal)( ATmetal) The total change in heat is the sum of the changes in heat of water and a metal. Energy is conserved. Energy is transferred between water and a metal. Energy is lost during a calorimetry experiment. A Moving to another question will save this response. hp & %23 9. 6. 00 进3

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

PL03 141 PM Sun Apr 17 24) Order: Potassium Chloride 75meq p.o. daily Supply: potassium Chloride 15 meq per 10 mL 220 mL Calculate the dosage in fl-oZ Connect CAPS 4 Ch ** F12 Esc F1 F3 F4 F5 F6 F7 F8 F11 23 $ % & 3 4. 7 9 %3D Q W Y U

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

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

can someone help me with answer a pls!

8 Welcome, Ayann IXL Search topics and skills Learning Diagnostic Analytics P Recommendations 1 Skill plans A Math O Language arts Science Social studies E Common Core Eighth grade> * E.5 Classify elementary substances and compounds using chemical formulas EHR Que ans Select all the compounds. 1 rhenium (Re) carbon monoxide (CO) TI elap glucose (C,H,206) PAU sodium hydroxide (NaOH) Challe Stage Submit Get 5 co in a n CI & $4 4. %23 8 t e h b C

How do you apply 5s (sort, set in order, shine, sustain and standardized) of chemical safety specifically at HOME and SCHOOL? Enumerate.

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…

3. D +je + SNi 4. P – 32P 15 325 16 5. 12°BA + _ie Ba+ _ĝe 56 6. 23°PU → 94 + 235U

Please send me the question in 30 minutes it's very urgent plz

Has 2 subtleparts ( A&B) . not graded everything is given

Scientists study the impact of changing only one component of a cancer treatment in a laboratory. Which of the following describes the study? controlled experiment observational study conceptual model computational study

Please send me the question in 20 minutes it's very urgent plz

Identify basic procedures for dealing with laboratory accidents.

7. You can see an MSDS below. Please answer the following questions related to the MSDS. a) What is the name of this chemical? b) What should you do if someone drinks the chemical? c) Would this chemical catch on fire if it was exposed to flames? d) If this chemical gets in your eye what should you do? e) What color is this chemical? f) What should you do if someone spills a small amount of the chemical?

ed Test This test has a time limit of 1 hour.This test will save and submit automatically when th Warnings appear when half the time, 5 minutes, 1 minute, and 30 seconds remain. tiple Attempts Not allowed. This test can only be taken once. ce Completion This test can be saved and resumed at any point until time has expired. The timer will emaining Time: 57 minutes, 15 seconds. uestion Completion Status: A Moving to another question will save this response. Question 4 The standard Gibb's Free Energy (AGO) = 18.38 kJ at 25C for the reaction HNO2 2 H+ + NO2-. What is the value of AG if {HNO2} = 0.75 M, {H+} = 0.13M and {NO2-} = 0.07M? %3D %3D %3D Is the reaction spontaneous under these conditions? Moving to another question will save this response.