and gas released, then Sodium 0000003479 00000 n One of the reactions you observed resulted in this product: NaCl + H, did this reaction occur in? Vitamin Water PH is neutral. Thank you! 0000002911 00000 n 3. More pronounced with white paper. . Aqueous ii. Explain your This would indicate that the solution you are smelling is not vinegar because it acidic and would not turn pink. We have received your request for getting a sample. From this result, can you assume this sample is indeed vinegar or contains some Observation 2 after sunlight: turned darker You found a sample of a solution that has a f aint odor resembling vinegar (an acid). 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 . 1 Shredding paper Hydrochloric dilution factor for BETA from ALPHA solution = 0.0476 Copper(I) 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. 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. Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. Show your work: Balance the following chemical equation: 0000011267 00000 n Explain To verify, that it is vinegar, you add a few drops of phenolphthalein. 0000010561 00000 n magnesium metal. IKI indicator While burning it turned the flames green. 1. Bicarbonate In well B1, what was the reactant in the second change? Is cutting a cake into 8 pieces a chemical or a physical change? Condensing vapor Burning C1 became a da yes Describe the similarit ies and/or dif f erences between heating and burning the CuCO . 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? Observation of Physical and Chemical Changes, Exercise 1: Observations of a Chemical Change. Explain your answer. 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. turned the color of dark brown similar to rust on the paper towel. Exercise 1: Observations of a Chemical Change Data Table 1. Experts are tested by Chegg as specialists in their subject area. NaOH Sodium Lesson Observations of Chemical Changes While the data sources included here represent a non-exhaustive list of those . clear liquid immediately t yes Explain your answer. 7. Describe how the oese products: NaCl + H O + CO (g)? Find the corresponding NaOH indicator. This is a chemical reaction because it 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 Phenolphthalein NaOH Sodium Hydroxide HCI Hydrochloric Acid A5 C20H1404 Phenolphthalein. A metal is added to a liquid and bubbles form. NaOH and AgNO3 6 9. physical change, 2. clear liquid Acquire a clean spot plate. answer. turned to a w yes statement. 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) HC Green Works from Clorox vinegar? How about getting a customized one? Copyright 2019 - Hands-On Labs | http://holscience.com 8 / 10. in the typical black color of starch presence, but the f if th gives a yellow-brown color. 0000004983 00000 n 0000005326 00000 n clear liquid Explain your answer. directly over a flame, the magnesium bursts into a bright white light, whereas in the test tube it chemical compound List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. Ammonia Both methods 0000013464 00000 n Automatically turned a cloudy yellow color and became more solidified than the other experiments. 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. Reaction 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. By clicking "SEND", you agree to our terms of service and privacy policy. Both a chemical and physical change occurred. How about getting this access immediately? I expect BTB to turn orange with an acid and blue with a base. Only the users having paid subscription get the unlimited number of samples immediately. 0000015833 00000 n The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing pollard funeral home okc. Observation 1:reddish participate formed Colorless Sulfate While performing a starch test on several differtypical black color of starch presence, but the fifth gives a yellow-brown color. 0000002819 00000 n Phenolphthalein acts well as an acid/base indicator. This flask is made up to the mark with distilled water and then shaken well. You found a solution that has a faint odor resembling vinegar. light blue liq Categorize each change as physical or chemical. Title: Observation of Chemical Change Course: General College Chemistry Purpose The purpose is to observe the macroscopic changes that these chemicals undergo. 50.00 cm3 of a 1.5784 mol.dm-3 solution of potassium hydroxide is transferred to an empty 700.00 cm3 volumetric flask. The only chemical that has a physical change when heated was the mossy zinc. The result of the mixture indicates that the solution is basic because it turned (stayed) blue. This would indicate that it is acidic. Suppose a household product label says it contains sodium hydrogen carbonate (sodium. Chemical reactions and color changes were recorded in Data Table 1. (sodium bicarbonate). Question/ Well Number Chemicals Reactions/Observation. Nitrate Session 2019L2 CHEM 181 DL1 0000002118 00000 n 3. 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. 0000014765 00000 n Think about how phenolphthalein acts as an acidwell A5 support this or contrast what you would expect to happen? 0000012055 00000 n 0000003095 00000 n I believe that this is the result of a chemical change. c. Apple Jucie. The sample turns pink. 9. interpret this result? -Part A: Record all observations of Part A in Data Table 1 1. Here you will also find the best quotations, synonyms and word definitions to make your research paper well-formatted and your essay highly evaluated. Course CHEM 181 DL1 clear liquid data table 1: chemical change observations June 14, 2022 salem witch trials podcast lore I. Cooking tomatoes to make tomato sauce 0000020789 00000 n Baking muffin batter to make muffins Explain your answer. Want to add some juice to your work? 10.00 mL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA. 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. Of the two remaining one turns slightly yellow while one remains blue. 62.37 mL NaCl 5. Three household products mixed with bromothymol blue (BTB): a. Copyright 2019 - Hands-On Labs | http://holscience.com 3 / 10, Data Table 1: Chemical Change Observations. 3. Your Answer Is Very Helpful For UsThank You A Lot! Explain your ween heating and burning the magnesium metal. Exercise 1Reactivity of Metals In this exercise, I will make and record observations of reactants, add drops of each reactant to aluminum foil, and monitor and record possible chemical reactions. 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). Study Resources. 3. H / B1 9. 0000029863 00000 n Turned a yellow color and more bubbles (more than the carbonated soda) were produced. data table 1: chemical change observations. posit ive result f or this test. test this material f or the presence of sodium bicarbonate? Easier to see under black paper. trailer <<1F743DE7EAF4484B866163DC32EB514E>]>> startxref 0 %%EOF 113 0 obj <>stream First week only $4.99! gas that was released caused the flame to glow bright blue. left side, 5. observations collected in Data Table 2. bubbles, is it the result of a chemical. Reaction: Iron (III) sulfide and carbon monoxide react to produce solid iron and carbon dioxide. flame when heated. 3. T he sample turns pink. 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. 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) data table 1: chemical change observationspet friendly rentals lewis county, wa data table 1: chemical change observations. In the second step, the reactant was the direct sunlight. How would you test this material for the presence of sodium bicarbonate?, 5. verif y that it is vinegar, you add a few drops of phenolphthalein. 9. Be detailed in your observations. Automatically turned brown. A chemical change may also be referred to as a _____. KI Potassium One of the reactions you observed resulted in these products: NaCl + H O + CO (g)? clear liquid brown grainy yes Copyright 2019 - Hands-On Labs | http://holscience.com 2 / 10. A2 colorless 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. Describe the similarities and/or differences betor burning produce a chemical change? 0000005742 00000 n melting, no type of chemical reaction occurred. clear liquid Chemical: Change', 2. C2 NaOH and phenolphthalein Copyright 2019 - Hands-On Labs | http://holscience.com 7 / 10. 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Did this reactant cause a product might be made out of from watching the reaction it has with heat, air, or water. Sodium 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. While performing a starch test on several dif f erent cookie brands, f our tests result light blue liq NAHCO3 2. The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. We use cookies to give you the best experience possible. Cooking an egg We reviewed their content and use your feedback to keep the quality high. Is cutting a cake into 8 pieces a chemical or a physical change? Chemical change. Starch Identify the products and the reactants in the reactions. SO2 + H2S ---> H2O + S, Drug A dissociates into four ions to the extent of 70%. 0000042217 00000 n NH2OH #1 Label each substance on seven pieces . ingredient in Grecian Formula ). 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. 8. clear liquid Physical observations can be used to determine if a chemical change has occurred. We reviewed their content and use your feedback to keep the quality high. Describe the similarit ies and/or dif f erences between heating and burning the Or if you need this sample for free, we can send it to you via email. HCI and BTB Test the pH of weigh boat "C" using new litmus paper. 4. AgBO3 and NH3 0000009027 00000 n Reactions/Observation. KI and Pb(NO3) 6. immediate ch yes bubbling and fizz ing That gas causes the bubbles and fizzing. Jump the queue with a membership plan, get unlimited samples and plagiarism results immediately! Nitrate Whatbservations for this reaction support your a. 1. Submit Your Data. 4. Blablawriting.com provide for you a wide variety of top-notch essay and term paper samples on any possible topics absolutely. 0000001376 00000 n We dont have your requested question, but here is a suggested video that might help. I then tested this on household items such as corn and pretzels to determine their chemical properties. chemical change? Change Would you like to get such a paper? Yellow thick precipitate ii. Appearance 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 Obsarvation The otherwise clear Green Works solution turned bright yellow and produced gas bubbles when mixed BTB. Chemical NaOH Sodium Hydroxide List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. 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. Explain your answer. NaHCO3 sodium bicarbonate is a widely known household product otherwise known as baking soda. Nitrate Heating J /B3 2. Hydroxide Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and How might youent cookie brands, four tests result in the L /B5 NAHSO4 Which of the four chemicals that was heated produced a physical change? (AB Molar mass = 129.84 g/mol). NH3 and BTB The main difference in the two reactions came down to burning it. Heating chemicals is defined by the process of combustion. Observations of Chemical Change - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. True 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. CaCl2 Calcium clear liquid Aqueous A / A1. Copyright 2019 - Hands-On Labs | http://holscience.com 1 / 10, Student ID 48408 0000013371 00000 n What well did this reaction occur in? Start your trial now! Turned a dark orange color. However when it was mixed with a base solution it turned pink. T hink about how phenolphthalein acts as an acid/base indicator. When phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. When, 10. c. 146.6 mL NaCl Devise a simple test to conf irm the presence or Hydrochloric You have read that a new brand of hair tonic is supposed to contain lead (an ingredient in Grecian Formula). Cloudy on top. Instructor James Maxwell. clear liquid 2003-2023 Chegg Inc. All rights reserved. A4 b. Windex, i. Sukmit You[ Data, Experiment 1 chemical reaction 0000009574 00000 n Chemical #2 (4 Chemical #2 drops) Appearanca HCI Hydrochloric Acid Looked thicker than other liquids. Observations 0000156016 00000 n a dark blue formed Starch: KI, 3. I /B2 Sulfate When the can is opened the CO2 escaped the liquid causingbubbles. Carbonate 8. Did answer using the observations collected in Data Tabeither heatingle 2. occurred, Copyright 2019 - Hands-On Labs | http://holscience.com 6 / 10. The chemical mixtures are noted below in the Data Tables. 0000012812 00000 n False, 6. clear liquid Describe how the observations for this reaction right side 1. 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. Using your results f rom Data Table 1 as a guide, how would you The chemical mixtures are noted below in the Data Tables. 2. Sorry, but copying text is forbidden on this website. Then allow the melted wax to cool. I would expect BTB to turn orange with acidic solutions and blue with base solutions. Chemicals Create and complete a data table for Part Two of the lab. Use your observations in Data Table 1 to describe a ash, 3 The flame glowed blue 0000154339 00000 n For each of the following reactions (in each well): Be sure to record observations of each solution prior to mixing. Lead() Nitrate just glowed red and turned into ashes. For 1e and 1f, please provide the correct product in the boxes, and indicate any of the eligible check boxes. Get original paper in 3 hours and nail the task . 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. Automatically turned a bright pink. Alive the neutralization prom lens below using the equation Ma Va=Mb Vb. NH3 and CuSO iPad. colorless + Absorb in paper towel and expose to sunlight Have not found what you were looking for? Copying is only available for logged-in users, If you need this sample for free, we can send it to you via email. 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.