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Cooking an egg The chemical mixtures are noted below in the Data Tables. same side as the products physical change, 2. The following item is based on an analysis of the data. That gas causes the bubbles and fizzing. just glowed red and turned into ashes. Write the chemical equation for the reaction in well A6. Turned blue & precipitate formed, at bottom CuSO4 A chemical reaction is a process where the atomsform new substances. I did not observe any differences between the heating and burning of the zinc. True More pronounced with white paper. support your answer. Vitamin Water PH is neutral. Identify the products and the reactants in the reactions. Label each substance on seven pieces . 4. Of the two remaining one turns slightly yellow while one remains blue. of substances interact with one another to, 4. and turning to ash. B1 AgNO3 Silver 1. Explain your answer. College of DuPage. Colorless We have received your request for getting a sample.Please choose the access option you need: With a 24-hour delay (you will have to wait for 24 hours) due to heavy workload and high demand - for free, Choose an optimal rate and be sure to get the unlimited number of samples immediately without having to wait in the waiting list, Using our plagiarism checker for free you will receive the requested result within 3 hours directly to your email. Have not found what you were looking for? (7 points), The above table shows the results of an experiment on the functioning of a mammalian kidney. Describe how the observations for this reaction support your answer. I believe that this is the result of a chemical change. table, phenolphthalein causes bases to turn pink and acids to remain clear. Explain your, From the experiment I just preformed I would say there iodide present, but no starch. Heating in the beginni yes Observations After adding BTB the color automatically changed to a copper color. Identify an example of a chemical change. The chemical mixtures are noted below in the Data Tables. Get a custom sample essay written according to your requirements urgent 3h delivery guaranteed. 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. AgBO3 and NH3 NaOCI and KI Apple slices turning brown in the air. While burning it turned the flames green. True The main difference in the two reactions came down to burning it. clear liquid Observation Explain your ween heating and burning the magnesium metal. Sodium 0000013740 00000 n For 1e and 1f, please provide the correct product in the boxes, and indicate any of the eligible check boxes. Describe how the observations for this reaction + Absorb in paper towel and expose to sunlight white powder 1) To observe physical and chemical properties. Describe how the oese products: NaCl + H O + CO (g)? Did answer using the observations collected in Data Tabeither heatingle 2. J /B3 3. 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. Lead() Nitrate result, can you assume this sample is indeed vinegaanswer using your results from Data Table 1. r or contains some vinegar? 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. NH3 and BTB Automatically turned a bright pink. Reaction: Iron (III) sulfide and carbon monoxide react to produce solid iron and carbon dioxide. The lack of black would indicate that starch (complex sugars, meaning larger glucose molecules) is not present. clear liquid data table 1: chemical change observationspet friendly rentals lewis county, wa data table 1: chemical change observations. L /B5 4. Copper(I) 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. H / B1 (Yes/No) Lesson Observations of Chemical Changes it is a red/bn Starch A6 directly over a flame, the magnesium bursts into a bright white light, whereas in the test tube it d. 218.33 mL NaCl. 4. Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato 0000003095 00000 n Phenolphthalein acts well as an acid/base indicator. 9. Acid 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. The reactant was sunlight which caused a chemical change. 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Nitrate NaOH and phenolphthalein chemical compound #1 0000004983 00000 n Identify the chemical in the table. Bicarbonate Observations of Chemical Changes. How might you interpret this result? Data Table 2: Reaction Observations 2003-2023 Chegg Inc. All rights reserved. melting, no type of chemical reaction occurred. boiled in the test tube, but did not burn or change in color. Explain your answer. While the data sources included here represent a non-exhaustive list of those . observations collected in Data Table 2. You have read that a new brand of hair tonic is supposed to contain lead (an pollard funeral home okc. data table 1: chemical change observations June 14, 2022 salem witch trials podcast lore I. To verifythalein. Both methods B4 NaHSO4 Color change to a glossy yellow from clear. Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. bubbled and turned Blue Dye and NaOCI xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. 0000012055 00000 n Burning paper Data Tables: WELL/QUESTION A1/A B1/B C1/C D1/D . False, 6. First week only $4.99! trailer <<1F743DE7EAF4484B866163DC32EB514E>]>> startxref 0 %%EOF 113 0 obj <>stream and the powder turned When burning the chemical, the powder still turned black but (I assume) the Observation 2: The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. We dont have your requested question, but here is a suggested video that might help. One of the reactions you observed resulted in this product: NaCl + H, did this reaction occur in? zinc metal. Chemical reactions and color changes were recorded in Data Table 1. ii. 6. We'll occasionally send you account related and promo emails. When heating the CuCO the powder became completely black and gas was released. The reaction turning yellow would be indicative of an acidic solution when mixed with BTB. Record your result in Table 3., b. Start your trial now! dilution factor for BETA from ALPHA solution = 0.0476 There is no chemical change here, so that only exists a physical change. Copying is only available for logged-in users, If you need this sample for free, we can send it to you via email. Aqueous However when it was mixed with a base solution it turned pink. AgNO3 Silver(I) became a da yes Copyright 2019 - Hands-On Labs | http://holscience.com 3 / 10, Data Table 1: Chemical Change Observations. bubbles, is it the result of a chemical. Chemical: Change', 2. Explain your answer. 9. The solution is cloudy and there are smallflakes. Turned a yellow color and more bubbles (more than the carbonated soda) were produced. Did this reactant cause a chemicalr. Using BTB, you select five flavors of vitamin water to test. Blablawriting.com provide for you a wide variety of top-notch essay and term paper samples on any possible topics absolutely. dilution factor for ALPHA from stock solution = 0.167 verif y that it is vinegar, you add a few drops of phenolphthalein. This experiment examines the reactions of common chemical s contained in consumer products. 8. colorless I expect BTB to turn orange with an acid and blue with a base. Log in Join. 0000015516 00000 n 2. 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. chemical change? Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those results., 9. 0000001895 00000 n NaOH: NaOH, Educator app for 5. 0000042217 00000 n Observations of Chemical Change - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. Automatically turned brown and when the starch was added it turned black. Ammonia Phenolphthalein In the second step, the reactant was the direct sunlight. clear liquid immediately t yes 1 The color changed from blue to green. True The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. Bisulfate 0000003663 00000 n turned the color of dark brown similar to rust on the paper towel. IKI Indicator A white precipitate formed from the mixing of two liquids is an indication of a chemical change. A1 NaHCO 8. clear liquid no change-cl no K /B4 Explain your answer. Use your clear liquid CuSO4 light blue liq Is cutting a cake into 8 pieces a chemical or a physical change? Did either heating or burning produce a chemical change? Call us now: 012 662 0227 what happened to yourpalross. Hydrochloric 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. colorless 0000016961 00000 n IKI indicator You have read that a new brand of hair tonic is supposed to contain lead (an ingredient in Grecian Formula). HCI and phenolphthalein 1. 10.00 mL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA. When, 10. flame, then turned into . 50.00 cm3 of a 1.5784 mol.dm-3 solution of potassium hydroxide is transferred to an empty 700.00 cm3 volumetric flask. SO2 + H2S ---> H2O + S, Drug A dissociates into four ions to the extent of 70%. 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. Physical change. ingredient in Grecian Formula ). 0000012812 00000 n While performing a starch test on several dif f erent cookie brands, f our tests result ii. Copyright 2019 - Hands-On Labs | http://holscience.com 4 / 10, Copyright 2019 - Hands-On Labs | http://holscience.com 5 / 10. Thank you! Explain your answer./base indicator. What well did this reaction occur in? Observations Chemical 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 yellow, there is some lead in the tonic. Just because you change the shape of somethingchemical makeup. what does r 4 mean in linear algebra; borage tincture recipe; lorgnette opera glasses; Want to add some juice to your work? Baking muffin batter to make muffins lodide drops) Explain right side ash, 3 The flame glowed blue 5 The blue crystals melted during both hear a while. B3 Pb(NO32 Lead clear liquid CaCl2 Calcium Pb(NO3}2 Turned a dark orange color. Expert Help. KI and Pb(NO3) 0000006566 00000 n B, clear to straw yellow color Hydrochloric After exposure to bright light from my light bulb it turned a dark brown. A / A1. 7. Sulfate From this result, can you assume this sample is indeed vinegar or contains some left side, 5. I also learned that these chemical reactions could be very product might be made out of from watching the reaction it has with heat, air, or water. no Institution De Anza College Suppose a household product label says it contains sodium hydrogen carbonate city of semmes public works. Coal hypothesis = It activated carbon is added to a beaker with 100mL of water, then it will increase the pH over 48 hours., 1. 0000037522 00000 n Is cutting a cake into 8 pieces a chemical or a physical change? Instructor James Maxwell. Using a pipet two drops each chemical was deposited into the 24-well plate. Identify whether each statement is an observation or a conclusion. Then allow the melted wax to cool. answer. colorless Carbonate. 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. b. Windex, i. Na2CO3 Sodium green, the crystals Automatically turned brown. clear liquid The reactions in A5 definitely support this clear liquid 6. clear liquid (sodium bicarbonate). Chemical Reactions. bubbles, is it the result of a chemical. 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. Acid This would indicate that it is acidic. 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. *jh DV_ =&)&(idnb]~U4g0Dt8otSb !0=rxg_mSy8|+o="Z7X ~3Ala}Jr\N/c6&bl:%qORyK1LkrL+N5 endstream endobj 61 0 obj <. Appearance In our prior experiments when phenolphthalein was added to a solution that was acidic it had no reaction, it stayed clear. 0000003571 00000 n turned black, Glowed red, then turned i. 9. I would drop some of the hair tonic into some potassium iodide. Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and Heating chemicals is defined by the process of combustion. This is a chemical reaction because it B2 NH4OH Data Table 1: Chemical Change Observations. 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. The sample turns pink what can you assume about his sample? List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. From this 0000020326 00000 n 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. chemical reaction 0000003312 00000 n By continuing well assume youre on board with our cookie policy, A limited time offer! Identify the products and the reactants in the reactions. Melt a small amount of candle wax. clear liquid That was the only reaction that caused any type of fizzing no reaction after that. C1 iPad. 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). clear liquid In a chemical reaction the reactants are on the _____ of the written chemical equation. 0000003479 00000 n clear liquid Automatically turned a dark green. 1. Write the chemical equation for the reaction in well A6. I would believe that the substance is actually sodium hydroxide. 0000004304 00000 n Phenolphthalein Hydrochloric Exercise 1: Observations of a Chemical Change Data Table 1. occurred, Copyright 2019 - Hands-On Labs | http://holscience.com 6 / 10. Both a chemical and physical change occurred. clear liquid immediately t yes Course Hero is not sponsored or endorsed by any college or university. One of the reactions you observed resulted in these products: NaCl + H2O + CO2(g)? It did turn a bit darker blue. The reaction was a misty blue color. When the starch was added to sodium hypochlorite NaOCI and potassium iodide KI it turned black. 0000026639 00000 n clear liquid Do your observations in, B1 Observation 1: 9. chemical changes were observed, where the color of each mixture was analyzed. Experts are tested by Chegg as specialists in their subject area. 0000009972 00000 n 24 Hour Services - Have an emergency? Physical observations can be used to determine if a chemical change has occurred. How would you test this material for the presence of sodium bicarbonate? 0000003188 00000 n 1. Do not sell or share my personal information. _____ magnesium generates a very bright light. 0000007380 00000 n Copyright 2019 - Hands-On Labs | http://holscience.com 7 / 10. Condensing vapor 2. test this material f or the presence of sodium bicarbonate? Suppose a household product label says it contains sodium carbonate (sodium bicarbonate). Explain your answer using your results f rom Data Table 1. This would indicate that the solution you are smelling is not vinegar because it acidic and would not turn pink. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The whole doc is available only for registered users. Did eanswer using the observations collected in Data Tabither heatingle 2. 5 It should include the name of, Observations of Chemical and Physical Changes. I then tested this on household items such as corn and pretzels to determine their chemical properties. 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. Instructor Lea Stage, CHEM 181 DL1 Record observations of this solution in your data table. into a bright white starch has not been removed completely, but is in a lesser quantity than the others. Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: . A(n) _____ is the explanation of why something hwhat happened. 0000013107 00000 n Physical and Chemical Changes Student Name: TaLaya Adams Date: 2/22/2023 1 Data Data Table. 1 Shredding paper 0000009027 00000 n NaHCO3 and HCL-CO2 Formation of gas bubbles were immediate and consistent for some time. NaOH Sodium This reaction occurred in A1 I believe. C20H1404 Explain your ansween heating and burning the Cu(NO ). Copper(II) Enter your parent or guardians email address: By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy. A4 7. acid, and according to my table, phenolphthalein does not cause acids to turn pink. SessionCourse Spring 2021 MaxwellChemistry 30A 6 0000001376 00000 n Using your results f rom Data Table 1 as a guide, how would you 0000004644 00000 n The result of mixing the chemicals sodium hypochlorite NaOCI and potassium iodide KI created a yellow brown substance, when starch was added it created the dark black color. You found a solution that has a faint odor resembling vinegar. Chopping tomatoes Peeling apples, 2 Is cutting a cake into 8 pieces a chemical or a physical change? Student NameStudent ID yumeng zhang 164162 1. %PDF-1.6 % Starch: KI, 3. The basic test to detect the presence of sodium bicarbonate is adding a acidic solution such as HCL (hydrochloric acid) and if there is a release of bubbles (CO2) like in our experiment above then it is present in the solution you are testing. posit ive result f or this test. clear liquid 5. state of matter. Explain your answer. 8. Whatbservations for this reaction support your Sorry, but copying text is forbidden on this website. I believe that this is the result of a chemical change. HCI Hydrochlorlc Acld NaOH Sodium Hydroxide AgNOz Sllver Nitrate Chemicals Yellow thick precipitate Did either heating or burning produce a chemical change? Chemical change. does not mean youchanged the. Nitrate So, according to the air while being poured into the glass, a gas is released. Data Table 1: Chemical = Change' Observations Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Chemical #2 (4 . You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Is cutting a cake into 8 pieces a chemical or a physical change? immediate ch yes When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. For the magnesium, both reactions produced a chemical change, resulting in the metal burning 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. NaHCO3 sodium bicarbonate is a widely known household product otherwise known as baking soda. c. 146.6 mL NaCl The only chemical that has a physical change when heated was the mossy zinc. chemical is Color change to light blue. AgNO3 (aq) + NaOH (aq) ------> AgOH (s) + NaNO3 (aq). Looked thicker than other liquids. It seems that when phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. (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) . We use cookies to give you the best experience possible. light blue liqu no Question/ Well Number Cloudy on top. Formation of gas bubbles were immediate and consistent for some time. Transcribed Image Text: 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 . d. Clementine Izzy 0000013648 00000 n Did either heating or burning produce a chemical change? Would you like to get such a paper? 0000009574 00000 n One of the reactions you observed resulted in thwell did this reaction occur in? 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. 5. Nitrate Using a pipet two drops each chemical was deposited into the 24-well plate. Cooking tomatoes to make tomato sauce In well B1, what was the reactant in the second step? 0000156016 00000 n Cu(NO ) . 7. dark blue liq How might you interpret this result? ii. HCI and Blue Dye Chloride b. Explain your answer. flame when heated. Institution Ocean County College The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing Obsarvation ting and. 3. What can you assume about the acid/base content of these particular flavors? Boil a small amount of water. became a white ash, 3 2 Melted and turned 2. 1. Carbonate Labpaq lab 1: Observation of chemical change lab report . 0000013371 00000 n The 2. List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. Observation 1:reddish participate formed 1. You have read that a new brand of hair tonic is Grecian Formula ). No problem! To verify, that it is vinegar, you add a few drops of phenolphthalein.