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- me of Cones Practice Session - PeriodibsTable x 84.studyisland.com/cfw/test/practice-session/a2166?CFID=0487f3b7-46be-4e10-aa17-5c7ee16a463d&CFTOKEN=0&cratelD=a2166&packl. < ☆ Login O Mail -Keidy A Mun.. PowerSchool Learn.. Salir de ASNEF No.. Home-Study Island Desmos | Scientific. F Meet-mythhou-dih able 1. The halogens are the elements of group 17 on the periodic table. Halogens combine easily-with elements from group 1. When a halogen reacts with a metal, what type of compound is formed? A. noble gas OB. potassium Oc. alloy OD salt Reset Submit Session Score: 0% (0/0)B Brock Sakai : CHEM 1P91 - Fall X b My Questions | bartleby ChemTeam: Combustion Analys X G oxygen molar mass - Google S X + Ims.brocku.ca/portal/site/90b45528-0b04-4bd2-85b6-897046a1e998/page/7011eaa9-4e38-4b06-9e15-1973abb58ef6 Version 264 Assign 4 1 / 2 100% + 2. A mixture of Na2SO4 and its hydrate Na2SO4-10H2O has a mass of 1.5099 g. After heating to drive off all the water, the mass is only 1.1410 g. What is the weight percentage of Na2SO4•10H2O in the original mixture? Report your answer to 4 significant figures. Molar masses: Na,SO4 142.04 g/mol; Na,SO4•10H2O 322.19 g/mol. 3. MnCl2 reacts with AgNO3 in aqueous solutions to produce a precipitate of AgCl that can be filtered and weighed. The balanced equation for the reaction is: MnCl2 (aq) + 2 A£NO3 (aq) → 2 AgCl (s) + Mn(NO3)2 (aq) Suppose you have a mixture that contains MnCl2, plus other compounds that do not react with AgNO3. If 0.5159 g of the mixture yields 0.8715 g of AgCl, what is the percentage of MnCl2 in the mixture?…es Wizard Q Looking for something? Type here.. Search Bb WordPerfect Office Document Ohttps://blackboard.liu.edu/bbcswebdav/pid-3293771-dt-content-rid-40608391 2/courses/CHM 4 01L BK SPRG2022/EXPT%2016%20SPETROP... Name: Date: Section: Prelaboratory Assignment: Spectrophotometric Determination of an Equilibrium Constant. 1. At 227°C, carbon monoxide gas reacts with hydrogen gas to form one mole of methanol, CH,OH. At equilibrium, the partial pressures of the and PCH3OH = 2.18 atm. gases are Pco= 0.295 atm, P 1.25 atm, CO H2 СНЗОН a) Write a balanced equation for the reaction b) Calculate the equilibrium constant for the reaction.
- Sample IdentificationCodeConcentration of M%TA=2-log(%T)Q50004.00 x 10-417.90.75Q50013.20 x 10-425.00.6Q50022.40 x 10-435.70.46Q50031.60 x 10-450.20.3Q50048.000 x 10-570.80.15SampleIdentificationCode%TA=2-log(%T)AMQ0210150143.70.359518560.360.000192Q0210150244.10.355561410.360.00018Q0210150343.80.358525890.360.00017Q0210150444.10.355561410.360.00018Q0210150543.80.358525890.360.00017What was their percent error?43%Does Batch 021015 meet legal requirements?No, because it is not between 2.85 * 10(4) and 3.15 * 10(4)Well #DropsBluedye1234567891012345678910Drops 9Distilled water876543210Concne 0.26tration0.52Test Tube #0.781.041.3Solutions3Concentration (M)2.082.32.6Concentration (ppm)1:1 dilution11.82Starting Dilution21.562:1 dilution0A.Zero standard0Was your calibration curve as linear as you expected?B.Did you experience any âdriftâ of the resistance readings?C.What is the equation of your best-fit line?D.What commercial drink did you analyze?E.Assuming…B Brock Sakai : CHEM 1P91 - Fall X b My Questions | bartleby ChemTeam: Combustion Analys X G oxygen molar mass - Google S X + A Ims.brocku.ca/portal/site/90b45528-0b04-4bd2-85b6-897046a1e998/page/7011eaa9-4e38-4b06-9e15-1973abb58ef6 Version 264 Assign 4 2 / 2 100% + | CHEM 1F92 Assignment 4. Stoichiometry, Oxidation-Reduction Consider the following net ionic equation for a redox reaction: 2 MnO4 + 2 H2O+ →2 Mn04¯+2 OH¯+ H2 8. (a) Which reactant gets oxidized? (c) Which reactant is the oxidizing agent? (d) Which reactant is the reducing agent? (b) Which reactant gets reduced?B Quizzes - SCH3UE-15-Chemistry- X + A tdsb.elearningontario.ca/d2l/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=19297865&isprv=&drc=1&qi=5956344&cfql=0&dnb=D0... 2 E TDSB Bookmarks P Summary - PayPal Steam Guard Mobil.. M Booter Panel ul Asylum Stresser - H.. A Free Stresser - The. 6 Str3ssed Booter - L. O Home | IP Stresser 3 - Packages >> What can be added to a solution containing Sr2*(aq) ions to precipitate the ions from the solution? potassium sulfate barium hydroxide O lithium nitrate Two of the above are correct. (a). (b), and (c) are all correct. 围 i 11:15
- Bi th 60 OC to th its CC St sp he ca el th kr pc in di of F re re ap sti ne pr el up CC W ne th C( el er If ho W Sp m lo Average and standard deviation based on "Using the Balance" Data pt. Deviation, (di) (x; -m) Xi 2 3 1 4 i sum Mean: Standard Deviation: i Average and standard deviation based on "Measuring the volume of water transferred" Data pt. Xi 2 3 1 10.065 mL 10.036 mL 9,793 mL 9.992 mL 4 5 55.858 55.858 55.858 55.858 sum Mean: Standard Deviation: Deviation, (di) (Xi — m) Square of di (x; -m)² -16- Square of di (Xi — m)2 CLOR8y borumeter heads 104 k Pa. express atmuspheric Pressure lof each unt? a) em Hg = b.) PsiB Quizzes - SCH3UE-15-Chemistry- X + A tdsb.elearningontario.ca/d2l/Ims/quizzing/user/attempt/quiz_start_frame_auto.d2l?ou=19297865&isprv=&drc=1&qi=5956344&cfql=0&dnb=D0... 2 E TDSB Bookmarks P Summary - PayPal Steam Guard Mobil. Booter Panel l Asylum Stresser - H. A Free Stresser - The. O Str3ssed Booter - . O Home | IP Stresser 3 - Packages >> In testing for the presence of lead(II) ions in solution, Jamaal adds a solution of sodium nitrate. What will be the conclusion of the test if no precipitate forms? Lead(II) ions are not present in solution. Lead(II) ions are present in the solution. Lead(II) ions are present, but in a very small concentration. More sodium nitrate solution needs to be added before a conclusion can be made. No conclusion can be made in this test. 围 1 11:14
- Number 9 plz!!! I think you need info from 7 and 8 thats what i included them.SrCl, Observations B|I|U X X + fx | ®| D e Normal Activated charcoal observations Normal BIU fx| 田=| || 的|| || In 1. Based on your understanding of color's relationship to wavelength, identify the approximate wavelength of light (nm) emitted by strontium when it was burned. (No quantitative data was collected for this; you are giving an approximate value only, based on what you observed.) Explain your reasoning in full, making sure to cite specific data and observations to support your answer. Normal BIIIU X:| X'|- EE = fx| DI e 2. While boiling potatoes for dinner in salted water, the pot boils over and you notice that the flame on your gas burner turns to bright yellow-orange. How would you explain the appearance of a color in the previously blue flame? Normal BIIU X X + 田=|IT| 3. What would you conclude about chloride based on your results in the flame tests? Xe | X° | → EI fx| fr DI e E E IT E IT Normal BIIU 4. Place the metal solutions you tested in order of increasing energy…Help me please