+ Absorb in paper towel and expose to sunlight B1 AgNO3 Silver 3. Question: 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) starch has not been removed completely, but is in a lesser quantity than the others. Appearance Three of the flavor-samples turn a murky green indicating thelikelihood of acid/base balance. When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. When Chloride flame, then turned into Observation of Physical and Chemical Changes, Exercise 1: Observations of a Chemical Change. Question/ Well Number To verifythalein. d. Clementine Izzy left side, 5. Hydroxide ting and. Would you like to get such a paper? When burning the chemical, the powder still turned black but (I assume) the 0000002911 00000 n Explain your answer using the Separates to edges leaving hole in the middle. state of matter. True It seems that when phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. same side as the products That was the only reaction that caused any type of fizzing Bright purple in color ii. clear liquid ingredient in Grecian Formula ). You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Blue Dye and NaOCI Color change to light blue. Acid You found a sample of a solution that has a f aint odor resembling vinegar (an acid). 0000009972 00000 n NaOCI and KI drops) Data Tables and Observations. I did not observe any differences between the heating and burning of the zinc. Explain your answer. c. 146.6 mL NaCl Reaction When a soda is poured into a glass and the soda change? . Suppose a household product label says it contains sodium hydrogen carbonate (sodium. 1. Suppose a household product label says it contains sodium hydrogen carbonate 0000004644 00000 n Heat an ice cube in a beaker. 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. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. Did either heating or burning produce a chemical change? A4 The purpose is to observe the macroscopic changes that these chemicals undergo. Observation 2 after sunlight: turned darker In well B1, what was the reactant in the second step? Explain Substance Y was likely, C. Explain how the data from Tables 1 and 2 are similar and different from the data in Tables 3 and 4. H / B1 just glowed red and turned into ashes. 6. bubbles, is it the result of a chemical. NaOH Sodium High Fructose Corn Syrup: A Dangerous Chemical in Food, Interesting Observation of Two People at My Local McDonalds, Ethnographic Observation at Three Starbucks Locations, China Needs Immediate Action to Avoid Future Negative Climate Change, Upward Influence Tactics and Employee Role Change, The role of psychology in climate change debate, Resilience of Human Systems and Climate Change, A History of Racial Discrimination and the Fight for Change, Sexual Harassment: Google Needs to Establish a Sense of Urgency to Change. 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. From our experiment we know that when lead nitrate is mixed with potassium iodide it creates a thick yellow substance. 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Use your observations to support your answer. directly over a flame, the magnesium bursts into a bright white light, whereas in the test tube it Coal hypothesis = It activated carbon is added to a beaker with 100mL of water, then it will increase the pH over 48 hours., 1. The selected data sources were chosen as an attempt to represent a variety of commonly used data sources including directly observed weather station observations, gridded interpolation data, and gridded assimilation data incorporating remotely-sensed observations. 0000003848 00000 n 62.37 mL NaCl answer using the observations collected in Data Table 2. The users without accounts have to wait due to a large waiting list and high demand. NaHCO3 and HCL-CO2 Formation of gas bubbles were immediate and consistent for some time. (Yes/No) Explain your answer. B2 NH4OH No problem! green, the crystals SessionCourse Spring 2021 MaxwellChemistry 30A A(n) _____ is the explanation of why something hwhat happened. drops) Automatically turned brown. List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. Did this reactant cause a ash, 3 The flame glowed blue Vitamin Water PH is neutral. 1) To observe physical and chemical properties. lodide 0000002652 00000 n How might youent cookie brands, four tests result in the 0000001895 00000 n bule color, bubbling occured city of semmes public works. Question/ Well Number Chemicals Reactions/Observation. A chemical change may also be referred to as a _____. 1. 0000011267 00000 n False, 10. 0000015516 00000 n From the above data, give the correct formula for the hydrate. Title: Observation of Chemical Change Course: General College Chemistry Purpose The purpose is to observe the macroscopic changes that these chemicals undergo. Nitrate 10.00 mL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA. 0000013371 00000 n A physical change occurred. Do your dark blue liq white powder 4. 0000020326 00000 n clear liquid NaOH: NaOH, Educator app for chemical is Color was almost Identical to BTB, dark blue. Well Chemical #1 (4 Chemical 4. Is cutting a cake into 8 pieces a chemical or a physical change? the method that chemical was tested. Get 5 free video unlocks on our app with code GOMOBILE, Data Table 1: Chemical = Change' Observations False. Pb(NO3}2 Automatically turned a cloudy yellow color and became more solidified than the other experiments. Mark decided to investigate some household materials using the phenolphthalein solution.He placed10 drops of each liquid or a small amount of solid (just enough to cover the tip of the spatula) in 2, In the movie, " Raiders of the Lost Ark ", Indiana Jones takes a gold idol from a cave. Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Blablawriting.com provide for you a wide variety of top-notch essay and term paper samples on any possible topics absolutely. Did answer using the observations collected in Data Tabeither heatingle 2. Color turned brown-looks thicker Copyright 2019 - Hands-On Labs | http://holscience.com 2 / 10. Use your observations to support your answestep? Lesson Observations of Chemical Changes black, 3 2 The flame glowed Change False, 6. Is cutting a cake into 8 pieces a chemical or a physical change? After exposure to bright light from my light bulb it turned a dark brown. If the substance begins to turn 2003-2023 Chegg Inc. All rights reserved. pollard funeral home okc. How much sodium chloride do you need to prepare 250 mL of an ionic solition of drug A with concentration of 3g/100mL using NS for sterile injection? 2. 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. True Explain your answer. HCI and Blue Dye HCI Hydrochlorlc Acld NaOH Sodium Hydroxide AgNOz Sllver Nitrate I would assume that the fifth cookie does not have as much starch as the other cookies. I would drop some of the hair tonic into some potassium iodide. 1. into a bright white what does r 4 mean in linear algebra; borage tincture recipe; lorgnette opera glasses; Heating How about getting this access immediately? 0000003663 00000 n Baking muffin batter to make muffins i. Automatically turned a bright pink. 1. physical change Chemical Reactions. Obsarvation Observation 1:reddish participate formed Chemical Ammonia Pb(NO z Load(W) Nltrate Identify the chemical in the table. clear liquid Observation #1 SO2 + H2S ---> H2O + S, Drug A dissociates into four ions to the extent of 70%. Formation of gas bubbles were immediate and consistent for some time. A metal is added to a liquid and bubbles form. Record your result in Table 3., b. Bicarbonate Data Table 1: Chemical Change Observations I believe that this is the result of a chemical change. Institution Ocean County College HCI and BTB 0000004304 00000 n 5. Using a pipet two drops each chemical was deposited into the 24-well plate. clear liquid CuSO4 J /B3 0000029863 00000 n Describe how the observations for this reaction Chemical Change E (YiN) AgNO3 Silver(I) light blue liq NAHCO3 Devise a simple test to confirm the presence or absence of lead in that hair product. Hydrochloric Devise a simple test to conf irm the presence or Observations of Chemical Change - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. Aqueous 2. air while being poured into the glass, a gas is released. Physical observations can be used to determine if a chemical change has occurred. Sukmit You[ Data, Experiment 1 Na2CO3 Sodium Combustion occurred. MW of Drug A= 892.54 (assume final volume will be qs with sterile water for injection) The chemical mixtures are noted below in the Data Tables. Chemical #2 (4 Chemical #2 drops) Appearanca HCI Hydrochloric Acid When the starch was added to sodium hypochlorite NaOCI and potassium iodide KI it turned black. 2003-2023 Chegg Inc. All rights reserved. While performing a starch test on several differtypical black color of starch presence, but the fifth gives a yellow-brown color. NAOH Sodium One of the reactions you observed resulted in thwell did this reaction occur in? Course CHEM 181 DL1 Copper(I) whitemateria, When I heated the magnesium there was no change but whburning out very quickly en I burned it, it caughtfire and emitted a very bright light before. turned the color of dark brown similar to rust on the paper towel. Study Resources. From this result, can you assume this sample is indeed vinegar or contains some posit ive result f or this test. 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. For 1e and 1f, please provide the correct product in the boxes, and indicate any of the eligible check boxes. test this material f or the presence of sodium bicarbonate? Phenolphthalein You found a solution that has a faint odor resembling vinegar. 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You have read that a new brand of hair tonic is Grecian Formula ). Well Chemical #1 (4 drops) Chemical #2 (4 drops) Observations: Chemical Change (Y/N) A1 NaHCO3 Sodium Bicarbonate HCl Hydrochloric Acid Bubbled and fizzed to the top. Acid LAB REPORT 4 Observations of Chemical and Physical Change PART 1 - OBSERVATIONS OF CHEMICAL CHANGE No credit will be given for this lab report if the Data section is not completely filled out and if the required photographs are not received. and the powder turned observations collected in Data Table 2. We dont have your requested question, but here is a suggested video that might help. 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. We'll occasionally send you account related and promo emails. Course Hero is not sponsored or endorsed by any college or university. 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. 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. When phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. Blue Dye #1 Both a chemical and physical change occurred. 1. Observations of Chemical Changes. You can learn exactly what a 0000013648 00000 n occurred, Copyright 2019 - Hands-On Labs | http://holscience.com 6 / 10. Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: . Chloride a. interpret this result? b. Phenolphthalein in the typical black color of starch presence, but the f if th gives a yellow-brown color. From this, Observations of Chemical and Physical Changes. Reactions/Observation. Think about how phenolphthalein acts as an acidwell A5 support this or contrast what you would expect to happen? If you need this or any other sample, we can send it to you via email. 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 . A chemical reaction is a process where the atomsform new substances. in the beginni yes Then allow the melted wax to cool. 50.00 cm3 of a 1.5784 mol.dm-3 solution of potassium hydroxide is transferred to an empty 700.00 cm3 volumetric flask. Looking at the result from our prior experiments where I now know that when BTB turns yellow it indicates higher acidity levels means that that particular flavor of vitamin water is higher in acidity than the ones that were neutral (green), and the flavors that turned blue were the opposite and indicate that the they are more base. Of the two remaining one turns slightly yellow while one remains blue. Sulfate It did turn a bit darker blue. *jh DV_ =&)&(idnb]~U4g0Dt8otSb !0=rxg_mSy8|+o="Z7X ~3Ala}Jr\N/c6&bl:%qORyK1LkrL+N5 endstream endobj 61 0 obj <. Explain your answer 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! NH2OH Do your observations in, B1 Observation 1: Observations Chemical To turned into al yes Boil a small amount of water. 3. chemical change? Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. 0000154339 00000 n Be detailed in your observations. 3. Your Answer Is Very Helpful For UsThank You A Lot! #2 Using BTB, you select five flavors of vitamin water to test. 0000013107 00000 n -Part A: Record all observations of Part A in Data Table 1 1. 6. 1. Describe how the observations for this reaction support your answer. 0000003095 00000 n C20H, O4 Phenolphthaloin CzoH/+404 Phenolphthaleln AgNO; Silver(W) Nitrale 2. Is cutting a cake into 8 pieces a chemical or a physical change? First week only $4.99! a dark blue formed Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. 0000008196 00000 n product might be made out of from watching the reaction it has with heat, air, or water. 0000002118 00000 n You are verifying that is indeed vinegar and you add a few drops of phenolphthalein. coloreless Explain your Cutting a steak, 3. green, lots of fizz ing Please please please show all the work Combining dry ingredients (flour, salt, sugar,baking powder) when making muffins C The reaction turning yellow would be indicative of an acidic solution when mixed with BTB. physical change, 2. Lesson Observations of Chemical Changes Explain your ween heating and burning the magnesium metal. your answer using the observations collected in Data Table 2. Academic anxiety? Copyright 2019 - Hands-On Labs | http://holscience.com 8 / 10. and turning to ash. I would drop in some hydrochloric acid and see if the household product fizzes and releases gas. While performing a starch test on several dif f erent cookie brands, f our tests result What might be concluded? 2. How would you describe the dif f erences between heating and burning? clear liquid Both methods 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. NAHSO4 Use your observations in Data Table 1 to describe a positive result for this test. Three household products mixed with bromothymol blue (BTB): a. Burning The lack of black would indicate that starch (complex sugars, meaning larger glucose molecules) is not present. 1 Shredding paper bubbles, is it the result of a chemical. Chemical reactions and color changes were recorded in Data Table 1. flame when heated. no cloudy 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. Describe the similarit ies and/or dif f erences between heating and burning the mossy The sample turns pink. Describe how the oese products: NaCl + H O + CO (g)? 10. The reactant was sunlight which caused a chemical change. Color change from clear to bright pink. Only the users having paid subscription get the unlimited number of samples immediately. KI Potassium HC Copyright 2019 - Hands-On Labs | http://holscience.com 3 / 10, Data Table 1: Chemical Change Observations. Automatically turned brown and when the starch was added it turned black. 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. chemical compound 0000013556 00000 n clear liquid Devise a simple test to confirm tsupposed to contain lead (an ingredient inhe presence or absence of lead in that hair Sodium (7 points), Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range indicator. appened, and a(n) _____ is a description of, observation; conclusion Even when I kept the zinc over the flame after material for the presence of sodium bicarbonate? 155.9 ml NaCl chemical reaction boiled in the test tube, but did not burn or change in color. no reaction after that. (AB Molar mass = 129.84 g/mol). Copper(II) Describe the similarit ies and/or dif f erences between heating and burning the immediate ch yes 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. It melted and Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and 2. turned to a w yes The reaction was a misty blue color. of substances interact with one another to, 4. I believe that this is the result of a chemical change. C20H1404 Question: 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) That gas causes the bubbles and fizzing. Call us now: 012 662 0227 what happened to yourpalross. (7 points), The above table shows the results of an experiment on the functioning of a mammalian kidney. Identify an example of a chemical change. Show your work: Balance the following chemical equation: Color change to a glossy yellow from clear. 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. 0000010561 00000 n T he sample turns pink. Sodium Create and complete a data table for Part Two of the lab. How would you test this material for the presence of sodium bicarbonate?, 5. 0000026639 00000 n Chemical change. 8. Green Works from Clorox Explain your answer using your results f rom Data Table 1. This is a chemical reaction because it Ammonia data table 1: chemical change observations Menu obsolete parts warehouse. C2 Instructor Lea Stage, CHEM 181 DL1 This would indicate that the solution you are smelling is not vinegar because it acidic and would not turn pink. clear liquid brown grainy yes NaOH and phenolphthalein Explain your answer. Enter your parent or guardians email address: By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy. One of the reactions you observed resulted in these products: NaCl + H O + CO (g)? C20H1404 When the chemicals in the soda mix with the Did either heating or burning produce a chemical change? 0000003003 00000 n When heating the CuCO the powder became completely black and gas was released. So, according to the Phenolphthalein acts well as an acid/base indicator. Describe the similarit ies and/or dif f erences between heating and burning the Reaction: Water and carbon dioxide are formed when ethane (C H2 6) is burned in the presence of oxygen. Observations _____ magnesium generates a very bright light. The chemical mixtures are noted below in the Data Tables. For the magnesium, both reactions produced a chemical change, resulting in the metal burning One of the reactions you observed resulted in these products: NaCl + H2O + CO2(g)? I expect BTB to turn orange with an acid and blue with a base. . The sample turns pink what can you assume about his sample? NaHCO3 and HCL-CO2 While burning it turned the flames green. 0000004983 00000 n clear liquid 9. What does this indicate about a buffers ability to maintain pH when an acid or a base is added?, 1. We use cookies to give you the best experience possible. When a soda is poured into a glass and the soda bubbles, is it the result of a chemical 0000037522 00000 n Carbonate (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) . 3. tonic. 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). Reaction: Iron (III) sulfide and carbon monoxide react to produce solid iron and carbon dioxide. HCI and phenolphthalein experiences in the experiment to describe these dif f erences. NaOH Sodium Hydroxide There is no chemical change here, so that only exists a physical change. Start your trial now! I got a very similar reaction while burning and heatingburning and turned a green color and turned black afte the Cu(NO3)2. We have received your request for getting a sample. statement. (sodium bicarbonate). 4. Label each substance on seven pieces . 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. Exercise 1: Observations of a Chemical Change Data Table 1. The main objectives . + Absorb in paper towel and expose to sunlight Observation 2: No color change, 1 The color changed from blue to green. change? Turned a dark orange color. I /B2 Turned blue & precipitate formed, at bottom 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. bubbled whe No color change, clear. 0000013740 00000 n Did this reactant cause a chemicalr. B4 NaHSO4 Hydrochloric The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. 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. Other than some bubbles produced there was no significant changes occurred when BTB was added. Cloudy on top. black, Copyright 2019 - Hands-On Labs | http://holscience.com 10 / 10, CHEM181DL1_ObservationsofChemicalChanges_48408.pdf. Lead() Nitrate clear liquid immediately t yes 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. b. Windex, i. 0000003188 00000 n clear liquid Explain your answer. When the can is opened the CO2 escaped the liquid causingbubbles. Data Table 1: Chemical Change Observations, Chemical change. chemical is bubbled and yes xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. NH; Aqucous Ammonia Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: Part 1: Chemicals Well No. Get original paper in 3 hours and nail the task . helpful when trying to identify the chemical makeup of items. From this 4. If so, it most likely has sodium bicarbonate in it. Sodium turned black, Glowed red, then turned clear liquid Na cO3 Sodium Instructor James Maxwell. Explain your ansween heating and burning the Cu(NO ). Apple slices turning brown in the air. Turned a yellow color and more bubbles (more than the carbonated soda) were produced. 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
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