Chemical Reactions. True clear liquid Automatically turned a dark green. 7. 0000037522 00000 n Prepare 750 mL of 6.00 M H3PO4 from a commercial reagent that is 86% H3PO4 (w/w) and has a specific gravity of 1.71. Use your observations to support your answestep? J /B3 3. Identify an example of a chemical change. The concentration of the potassium hydroxide in this second flask is: Please show steps and states (aq),(s).. etc thank you. 0000004304 00000 n flame when heated. drops) 1: clear liquid CuSO4 Copper(I) B2 NH4OH Aqueous light blue liq became a da yes Ammonia Sulfate B3 Pb(NO32 Lead clear liquid CaCl2 Calcium clear liquid turned to a w yes Nitrate Chloride B4 NaHSO4 in the beginni yes clear liquid clear liquid CaCl2 Calcium Sodium Bisulfate Chloride 5 NAHSO4 Na cO3 Sodium bubbled whe clear liquid clear liquid yes Sodium Bisulfate Carbonate CuSO4 6 light blue liq NAHCO3 clear liquid light blue liqu no Copper(II) Sulfate Sodium Bicarbonate Blue Dye #1 C1 C dark blue liq clear liquid turned into al yes Hydrochloric Acid C2 Na2CO3 Sodium C20H1404 Phenolphthalein clear liquid clear liquid looks the san yes Carbonate Data Table 2: Reaction Observations Observations Chemical Well Chemical #1 (4 Chemical Chemical #2 (4 drops) Chemical drops) #1 #2 Change (Yes/No) Appearance Appearance A1 NaHCO HC chemical is chemical is bubbled and yes Sodium Hydrochloric Acid Bicarbonate A2 IKI indicator it is a red/bn Starch cloudy immediate ch yes Pb(NO3}2 Lead() Nitrate KI Potassium clear liquid immediately t yes clear liquid lodide A4 NaOH Sodium C20H1404 Phenolphthalein clear liquid clear liquid immediately t yes Hydroxide 5 HC C20H1404 Phenolphthalein clear liquid clear liquid no change-cl no Hydrochloric Acid A6 NAOH Sodium AgNO3 Silver(I) clear liquid brown grainy yes clear liquid Hydroxide Nitrate B1 AgNO3 Silver NH2OH Aqueous clear liquid clear liquid Observation no Nitrate Ammonia 1. 0000012812 00000 n 0000012055 00000 n 4. This would indicate that the solution you are smelling is not vinegar because it acidic and would not turn pink. Title: Observation of Chemical Change Course: General College Chemistry Purpose The purpose is to observe the macroscopic changes that these chemicals undergo. Chemical Change E (YiN) SessionCourse Spring 2021 MaxwellChemistry 30A Show your work: Balance the following chemical equation: Boiling water Heating Chloride yellow, there is some lead in the tonic. 8. cloudy To verify, that it is vinegar, you add a few drops of phenolphthalein. Explain your answer./base indicator. 1. While preforming a starch test on several different cookie brands, four test result in the typical black color of starch presence, but the fifth gives you a yellow-brown color. Phenolphthalein Observation 2 after sunlight: turned darker The main difference in the two reactions came down to burning it. Log in Join. Aqueous HCI Hydrochlorlc Acld NaOH Sodium Hydroxide AgNOz Sllver Nitrate Session 2019L2 CHEM 181 DL1 HCI and BTB melting, no type of chemical reaction occurred. Explain your answer. turned the color of dark brown similar to rust on the paper towel. Did this reactant cause a chemicalr. A chemical change may also be referred to as a _____. Acquire a clean spot plate. Write the chemical equation(s) for each part of the following terms as it relates to this experiment., 5.List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. and turning to ash. 2003-2023 Chegg Inc. All rights reserved. We do not have the ability to see with a naked eye individual atoms and molecules reacting during chemical changes, however there are indicators that we can observe that give us the ability to understand what is happening. My observations in well A5 were that the solution stayed clphenolphthalein is mixed with acid it stays clear, when mixed with a base it turns pinkear because HCI is an acid. Boil a small amount of water. Please please please show all the work Create and complete a data table for Part Two of the lab. Nitrate In the second step, the reactant was the direct sunlight. Get original paper in 3 hours and nail the task . Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and 1. white powder air while being poured into the glass, a gas is released. 9. 0000020789 00000 n i. When the can is opened the CO2 escaped the liquid causingbubbles, 8. Suppose a household product label says it contains sodium hydrogen carbonate T hink about how phenolphthalein acts as an acid/base indicator. the method that chemical was tested. Expert Help. To test that lead is present in the product I would mix and even amount of the hair product with potassium iodide and see if a similar reaction occurs. In a chemical reaction the reactants are on the _____ of the written chemical equation. 0000013107 00000 n #2 3. Activity 1 Chemical and Physical Changes Make a data table to organize your observations of the matter before and after any change(s) that may occur. 0000002819 00000 n colorless Describe the similarities and/or differences betor burning produce a chemical change? Did either heating or burning produce a chemical change? Start your trial now! Coal hypothesis = It activated carbon is added to a beaker with 100mL of water, then it will increase the pH over 48 hours., 1. change? flame, then turned into What might be concluded? Did either heating or burning produce a chemical change? The color was more pronounced under the white piece of paper. Have not found what you were looking for? In addition, the student should also gain a betterunderstanding of the household chemicals that they use in their day to day lives.Procedure:Observe the chemical changes that occur by mixing a list of . Appearance If you need this or any other sample, we can send it to you via email. physical change Well Chemical #1 (4 drops) Chemical #2 (4 drops) Observations: Chemical Change (Y/N) A1 NaHCO3 Sodium Bicarbonate HCl Hydrochloric Acid When the HCL was added, it bubbled for about 2 seconds then stopped. -Part A: Record all observations of Part A in Data Table 1 1. NaOH and AgNO3 10.00 mL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA. While performing a starch test on several differtypical black color of starch presence, but the fifth gives a yellow-brown color. Step 2: Ask Question a Question and Conduct Mass (amu) 44.01 amu Background of COz Research Mass (amu) 28.82 amu of Air Notes about Gases Step Hypothesis Formulate a Hypothesis Step Test Experimental the Observations Hypothesis. If so, it most likely has sodium bicarbonate in it. your answer with observations made and recorded in Data Table 2. Sodium Explain your answer using your results f rom Data Table 1. A _____ is a change in the form of a substance. dilution factor for ALPHA from stock solution = 0.167 We reviewed their content and use your feedback to keep the quality high. Record observations of this solution in your data table. 7. (7 points), The above table shows the results of an experiment on the functioning of a mammalian kidney. In well B1, what was the reactant in the second step? Hydroxide b. Windex, i. What does this indicate about a buffers ability to maintain pH when an acid or a base is added?, 1. 0000009972 00000 n (sodium bicarbonate). Bisulfate B1 AgNO3 Silver Both burning and heating, Copyright 2023 StudeerSnel B.V., Keizersgracht 424, 1016 GC Amsterdam, KVK: 56829787, BTW: NL852321363B01, Psychology (David G. Myers; C. Nathan DeWall), Business Law: Text and Cases (Kenneth W. Clarkson; Roger LeRoy Miller; Frank B. With a. brown color separated and created chunks. SO2 + H2S ---> H2O + S, Drug A dissociates into four ions to the extent of 70%. I would drop in some hydrochloric acid and see if the household product fizzes and releases gas. chemical changes were observed, where the color of each mixture was analyzed. Chemical #2 (4 NaOH Sodium Hydroxide zinc metal. Did either heawer using the observations collected in Data Table 3 2 ting or2. From our experiment we know that when lead nitrate is mixed with potassium iodide it creates a thick yellow substance. When I heated the mossy zinc nothing changed but when I bsolidified quickly urned it the mossy zincmelted but when taken out of the fire it. (C) Observations Type of Change Explanation 1 Clear Clear Clear 24 26 Produced gas, bubbles forms near the edge of the tube Chemical Chemicals (2) . physical change, 2. This experiment examines the reactions of common chemical s contained in consumer products. That was the only reaction that caused any type of fizzing Is cutting a cake into 8 pieces a chemical or a physical change? Alive the neutralization prom lens below using the equation Ma Va=Mb Vb. The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing bule color, bubbling occured Question/ Well Number Chemicals Reactions/Observation. Explain your 0000005326 00000 n Acid 0000004983 00000 n Explain your answer using the I believe that this is the result of a chemical change. 2. 0000004644 00000 n black, 3 2 The flame glowed The solution is cloudy and there are smallflakes. ii. Using a pipet two drops each chemical was deposited into the 24-well plate. Find the corresponding NaOH indicator. For each of the following reactions (in each well): Be sure to record observations of each solution prior to mixing. 5 bubbled and turned Copying is only available for logged-in users, If you need this sample for free, we can send it to you via email. How would you describe the dif f erences between heating and burning? experiences in the experiment to describe these dif f erences. Data Table 1: Chemical Change Observations, Chemical change. Phenolphthalein While performing a starch test on several dif f erent cookie brands, f our tests result NAOH Sodium 2. T he sample turns pink. 0000005742 00000 n Melt a small amount of candle wax. 0000016961 00000 n College of DuPage. Is cutting a cake into 8 pieces a chemical or a physical change? The reaction was a misty blue color. Turned a yellow color and more bubbles (more than the carbonated soda) were produced. You could mix the product with lead nitrate and if it change it doesnt change it does not contain lead turns a yellow color it containslead, if it doesnt. How might youent cookie brands, four tests result in the Data Tables and Observations. However when it was mixed with a base solution it turned pink. The only chemical that has a physical change when heated was the mossy zinc. The purpose is to observe the macroscopic changes that these chemicals undergo. a. NaHCO3 sodium bicarbonate is a widely known household product otherwise known as baking soda. into a bright white Data Table 1: Chemical Change Observations Chemical #1 Appearance Weil Chemical #1 (4 drops) A1 NaHCO, Sodium Bicarbonate Chemical #24 drops) Chemical #2 Appearance Observations Chemical Change (Y/N) HCI Hydrochloric Acid A2 IKI Indicator Starch A3 KI Potassium lodide A4 NaOH Sodium Hydroxide HCI Hydrochloric Acid Pb(NO3)2 Lead(ll) Nitrate C20H, 404 Phenolphthalein C20H1404 Phenolphthalein A5 A6 AgNO3 Silver(1) Nitrate NaOH Sodium Hydroxide AgNO, Silver Nitrate B1 Observation 1: NH, Aqueous Ammonia 1. A chemical reaction is a process where the atomsform new substances. We are really sorry but we cannot send the sample immediately. Obsarvation NaOH and phenolphthalein There is no chemical change here, so that only exists a physical change. Data Tables: WELL/QUESTION A1/A B1/B C1/C D1/D . Pb(NO3}2 ii. Chemical: Change', 2. Data Table 1: Investigation of the Weight of Carbon Step 1: Make Baking Soda Observations Vinegar Describe the similarit ies and/or dif f erences between heating and burning the mossy Vitamin Water PH is neutral. Bright purple in color This would indicate that it is acidic. Question/ Well Number Lesson Observations of Chemical Changes absence of lead in that hair tonic. d. 218.33 mL NaCl. 6 NAHSO4 NH; Aqucous Ammonia Observation 2: 0000014765 00000 n Submit Your Data. This flask is made up to the mark with distilled water and then shaken well. I would expect BTB to turn orange with acidic solutions and blue with base solutions. B2 NH4OH turned to a w yes C20H1404 B4 NaHSO4 The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. Data Table 1: Chemical Change Observations Chemical #1 Appearance Weil Chemical #1 (4 drops) A1 NaHCO, Sodium Bicarbonate Chemical #24 drops) Chemical #2 Appearance Observations Chemical Change (Y/N) HCI Hydrochloric Acid A2 IKI Indicator Starch A3 KI Potassium lodide A4 NaOH Sodium Hydroxide HCI Hydrochloric Acid Pb(NO3)2 Lead(ll) Nitrate C20H, 404. List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. Describe the similarit ies and/or dif f erences between heating and burning the CuCO . Or if you need this sample for free, we can send it to you via email. C20H1404 in the beginni yes appened, and a(n) _____ is a description of, observation; conclusion 4. i. The otherwise clear Green Works solution turned bright yellow and produced gas bubbles when mixed BTB. First week only $4.99! Even when I kept the zinc over the flame after Describe how the oese products: NaCl + H O + CO (g)? In our prior experiments when phenolphthalein was added to a solution that was acidic it had no reaction, it stayed clear. Formation of gas bubbles were immediate and consistent for some time. Copper(I) By clicking "SEND", you agree to our terms of service and privacy policy. Record your result in Table 3., b. bubbles, is it the result of a chemical. A physical change occurred. We use cookies to give you the best experience possible. When burning the chemical, the powder still turned black but (I assume) the . c. 146.6 mL NaCl Enter your parent or guardians email address: By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy. Your Answer Is Very Helpful For UsThank You A Lot! Chemical reactions and color changes were recorded in Data Table 1. Turned blue & precipitate formed, at bottom Sulfate 0000003003 00000 n You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The main objectives . Did either heating or burning produce a chemical change? Reactions/Observation. Which of the four chemicals that was heated produced a physical change? ting and. 2. Labpaq lab 1: Observation of chemical change lab report, DOCX, PDF, TXT or read online from Scribd, 100% found this document useful, Mark this document as useful, 0% found this document not useful, Mark this document as not useful, Save Observations of Chemical Change For Later, Purpose: To observe the basic properties of chemical reactions and associate those properties, Procedure: I mixed different chemicals in my 96. household items such as corn and pretzels to determine their chemical properties. False, 6. Both methods Sodium Institution De Anza College 5. observations in well A5 support this or contrast what you would expect to happen? clear liquid Study Resources. 4. Exercise 1: Observations of a Chemical Change Data Table 1. 0000013556 00000 n While the data sources included here represent a non-exhaustive list of those . No color change, clear. If the substance begins to turn a dark blue formed 5. From the above data, give the correct formula for the hydrate. clear liquid Observation 1:reddish participate formed Cu(NO ) . and the powder turned That yellow stayed concentrated at the top segregated. The result of the mixture indicates that the solution is basic because it turned (stayed) blue. A(n) _____ is the explanation of why something hwhat happened. Of the two remaining one turns slightly yellow while one remains blue. interpret this result? data table 1: chemical change observationspet friendly rentals lewis county, wa data table 1: chemical change observations. Bicarbonate Color change to a glossy yellow from clear. 4. The sample turns pink. 0000015833 00000 n material for the presence of sodium bicarbonate? Test the pH of weigh boat "C" using new litmus paper. Burning paper C2 HCI and Blue Dye The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. The blue crystals melted during both hear a while. Did either heating or burning produce a chemical change? colorless Colorless white powder clear liquid immediately t yes Well Chemical #1 (4 Chemical NH2OH From this, Observations of Chemical and Physical Changes. b. A6 Hydrochloric Explain your answer. K /B4 6. Reaction We'll occasionally send you account related and promo emails. KI Potassium Iodido Hydrochloric Using your results f rom Data Table 1 as a guide, how would you One of the reactions you observed resulted in thwell did this reaction occur in? Support colorless black, Copyright 2019 - Hands-On Labs | http://holscience.com 10 / 10, CHEM181DL1_ObservationsofChemicalChanges_48408.pdf. 0000026639 00000 n Bicarbonate 5. Do not sell or share my personal information. You have read that a new brand of hair tonic is supposed to contain lead (an turned black, Glowed red, then turned Copyright 2019 - Hands-On Labs | http://holscience.com 7 / 10. Explain your answer. Did answer using the observations collected in Data Tabeither heatingle 2. The reactant was sunlight which caused a chemical change. IKI Indicator Student NameStudent ID yumeng zhang 164162 0000003571 00000 n You have read that a new brand of hair tonic is Grecian Formula ). Chemical change. Well Chemical #1 (4 drops) Chemical #2 (4 drops) Observations: Chemical Change (Y/N) A1 NaHCO3 Sodium Bicarbonate HCl Hydrochloric Acid A2 NaOCl Sodium Hypochlorite KI Potassium Iodide Observation 1: + Add 2 drops of starch Observation 2: A3 KI Potassium Iodide statement. The statue is resting on a table which is rigged with a weight sensor.The weight sensorcan detect when the, Heating and Combustion 1) Describe the similarities and/or differences between heating and burning the magnesium metal. One of the reactions you observed resulted in these products: NaCl + H O + CO (g)? i. 0000003095 00000 n How would you test this material for the presence of sodium bicarbonate?, 5. This reaction occurred in A1 I believe. You are verifying that is indeed vinegar and you add a few drops of phenolphthalein. NaOH: NaOH, Educator app for no clear liquid Use your observations to support your answer. pollard funeral home okc. It seems that when phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. We have received your request for getting a sample. Na cO3 Sodium dilution factor for BETA from ALPHA solution = 0.0476 _____ magnesium generates a very bright light. city of semmes public works. Explain your answer. Copyright 2019 - Hands-On Labs | http://holscience.com 8 / 10. The sample turns pink what can you assume about his sample? Cooking an egg Copyright 2019 - Hands-On Labs | http://holscience.com 1 / 10, Student ID 48408 abbvie patient assistance program Green Works from Clorox Cross), Chemistry: The Central Science (Theodore E. Brown; H. Eugene H LeMay; Bruce E. Bursten; Catherine Murphy; Patrick Woodward), Biological Science (Freeman Scott; Quillin Kim; Allison Lizabeth), The Methodology of the Social Sciences (Max Weber), Civilization and its Discontents (Sigmund Freud), Principles of Environmental Science (William P. Cunningham; Mary Ann Cunningham), Educational Research: Competencies for Analysis and Applications (Gay L. R.; Mills Geoffrey E.; Airasian Peter W.), Brunner and Suddarth's Textbook of Medical-Surgical Nursing (Janice L. Hinkle; Kerry H. Cheever), Campbell Biology (Jane B. Reece; Lisa A. Urry; Michael L. Cain; Steven A. Wasserman; Peter V. Minorsky), Forecasting, Time Series, and Regression (Richard T. O'Connell; Anne B. Koehler), Give Me Liberty! Experts are tested by Chegg as specialists in their subject area. 0000015516 00000 n data table 1: chemical change observations. answer using the observations collected in Data Table 2. I would assume that the fifth cookie does not have as much starch as the other cookies. Automatically turned a cloudy yellow color and became more solidified than the other experiments. + Absorb in paper towel and expose to sunlight. . + Absorb in paper towel and expose to sunlight Observation 2: No color change, 3. Think about how phenolphthalein acts as an acidwell A5 support this or contrast what you would expect to happen? Three of the flavor-samples turn a murky green indicating thelikelihood of acid/base balance. 2003-2023 Chegg Inc. All rights reserved. Based off of the results obtained in the lab room, fill in the following table:, 3. Use your You have read that a new brand of hair tonic is supposed to contain lead (an ingredient in Grecian Formula). Describe how your observations for this reaction support your, You found a sample of a solution that has a faint odor resembling vinegar (an acid). Turned a dark orange color. iPad. Suppose a household product label says it contains sodium hydrogen carbonate (sodium. Data and Observations Data TABLE 1: Reactions Expected Well #1 Question Chemicals Reaction AY Enhanced HCI - CO Clear, bubbles formed HCI and BIT Orange color, homogeneous. Just because you change the shape of somethingchemical makeup. When support your answer. A4 Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: . Labpaq lab 1: Observation of chemical change lab report . ash, 3 The flame glowed blue *jh DV_ =&)&(idnb]~U4g0Dt8otSb !0=rxg_mSy8|+o="Z7X ~3Ala}Jr\N/c6&bl:%qORyK1LkrL+N5 endstream endobj 61 0 obj <. Get access to our huge, continuously updated knowledge base. Want to add some juice to your work? part c and d? clear liquid Chemical Reactions. (AB Molar mass = 129.84 g/mol). Call us now: 012 662 0227 what happened to yourpalross. 2 No chemical reaction occurred. Explain your answer. Color change from clear to bright pink. When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. One of the reactions you observed resulted in this product: NaCl + H, did this reaction occur in? The reaction was clear. Combining dry ingredients (flour, salt, sugar,baking powder) when making muffins 0000003755 00000 n Observations 0000010561 00000 n A metal is added to a liquid and bubbles form. d. Clementine Izzy 6. 0000042217 00000 n The initial reaction was a light blue color, then when one drop of HCL was added it first became clear then turned a yellow/orange color. became a da yes Using BTB, you select five flavors of vitamin water to test. You found a sample of a solution that has a fainthat it is vinegar, you add a few drops of phenolpht odor resembling vinegar (an acid). Add 4 -5 drops of the first solution into the designated spot. answer. ;Cr*P XU#VE-K.I0*^]4Wb!0I4/Z`i*;|usI""00Va6De=/{cuV%'T(6>fElvK5!%~aTbOw4T;u10k/y)'9>{0vv-kf@! NaOCI and KI Devise a simple test to confirm the presence or absence of lead in that hair product. gas that was released caused the flame to glow bright blue. A / A1. NaHCO3 and HCL-CO2 Formation of gas bubbles were immediate and consistent for some time. When heating the CuCO the powder became completely black and gas was released. #1 table, phenolphthalein causes bases to turn pink and acids to remain clear. Explain your answer. Phenolphthalein 9. observations collected in Data Table 2. result, can you assume this sample is indeed vinegaanswer using your results from Data Table 1. r or contains some vinegar? %PDF-1.6 % 6. starch has not been removed completely, but is in a lesser quantity than the others. Starch Only the users having paid subscription get the unlimited number of samples immediately. I /B2 A1 NaHCO Condensing vapor Baking muffin batter to make muffins Course Hero is not sponsored or endorsed by any college or university. AgBO3 and NH3 True 9. Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those results., 9. Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. chemical is bubbled and yes When a soda is poured into a glass and the soda change? The following item is based on an analysis of the data. Is cutting a cake into 8 pieces a chemical or a physical change? left side, 5. light blue liq NAHCO3 NH3 and CuSO Sulfate I expect BTB to turn orange with an acid and blue with a base. 0000009574 00000 n clear liquid brown grainy yes That gas causes the bubbles and fizzing. Automatically turned brown and when the starch was added it turned black. Institution Ocean County College data table 1: chemical change observations. That gas causes the bubbles and fizzing. + Absorb in paper towel and expose to sunlight What well did this reaction occur in? KI and Pb(NO3) occurred, Copyright 2019 - Hands-On Labs | http://holscience.com 6 / 10. Observations Don't waste time Get a verified expert to help you with Observation of chemical change LabPaq Hire verified writer $35.80 for a 2-page paper During the experiments a few problems were encountered. Clear no reaction. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. clear liquid chemical change? 0000003312 00000 n You found a sample of a solution that has a f aint odor resembling vinegar (an acid). You can learn exactly what a . 9. 0000008196 00000 n Thank you! Pb(NO z Load(W) Nltrate The users without accounts have to wait due to a large waiting list and high demand. Sodium hydroxide is a base and hydrochloric acid is an acid. (7 points), 1. No color change, clear. Chloride Physical change. clear liquid A chemical reaction occurred. Explain your ween heating and burning the mossy zinc metal. Data Table 1: Chemical = Change' Observations Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Chemical #2 (4 . Chopping tomatoes Peeling apples, 2 0000023384 00000 n It should include the name of, Observations of Chemical and Physical Changes. Hi there! what does r 4 mean in linear algebra; borage tincture recipe; lorgnette opera glasses; To verifythalein. 0000012940 00000 n I would believe that the substance is actually sodium hydroxide. Observations of the React LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION . So next we can look at salt and water that undergoes evaporation to this form salt in the solid state, which is a physical process. chemical is Instructor James Maxwell. CuSO4 Explain your answer. was sodium hypochloriteand potassium. For the magnesium, both reactions produced a chemical change, resulting in the metal burning Experiment 1 Exercise 1 B Data Table 1 Data Table 1: Chemical Change Observations Chemical #1 Appearance Chemical #2 Appearance Observations Chemical Change (Yes/No) Well Chemical #1 (4 drops) A1 NaHCO3 Sodium Bicarbonate A2 IKI indicator Chemical #2 (4 drops) HCI Hydrochloric Acid Starch A3 KI Potassium lodide Pb(NO3)2 Lead(II) Nitrate 44 C20H1404. 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