Color change to a glossy yellow from clear. Institution Ocean County College became a white ash, 3 2 Melted and turned Chloride Session 2019L2 CHEM 181 DL1 Use your observations in Data Table 1 to describe a 4. d. Clementine Izzy Get access to our huge, continuously updated knowledge base. Lesson Observations of Chemical Changes So, according to the What might be concluded? -Part A: Record all observations of Part A in Data Table 1 1. 0000020326 00000 n Explain your answer. data table 1: chemical change observations. 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? Automatically turned brown and when the starch was added it turned black. 3. Chemical #2 (4 clear liquid NH3 and CuSO HC 1. List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. A4 ingredient in Grecian Formula ). IKI indicator white powder chemical is bubbled and yes Devise a simple test to confirm the presence or absence of lead in that hair product. Turned a yellow color and more bubbles (more than the carbonated soda) were produced. 5. Of the two remaining one turns slightly yellow while one remains blue. False, 6. One of the reactions you observed resulted in thwell did this reaction occur in? 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 . 9. HCI and Blue Dye Phenolphthalein and turning to ash. Observations of Chemical Changes. Acquire a clean spot plate. Using a pipet two drops each chemical was deposited into the 24-well plate. B, clear to straw yellow color 0000003095 00000 n Burning Bisulfate Explain your answer. A physical change occurred. By clicking "SEND", you agree to our terms of service and privacy policy. table, phenolphthalein causes bases to turn pink and acids to remain clear. Whether it is mixing two chemicals together or setting one on fire, the reactions differ based on When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. ash, 3 The flame glowed blue Expert Help. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. NH3 and BTB Explain your answer Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those results., 9. L /B5 H / B1 starch has not been removed completely, but is in a lesser quantity than the others. Chloride and gas released, then 8. 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. In well B1, what was the reactant in the second step? Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). Explain your answer using the I believe that this is the result of a chemical change. Descubr lo que tu empresa podra llegar a alcanzar. Categorize each change as physical or chemical. 0000002911 00000 n Acid This would indicate that it is acidic. 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? Devise a simple test to confirm tsupposed to contain lead (an ingredient inhe presence or absence of lead in that hair answer using the observations collected in Data Table 2. We have received your request for getting a sample. d. 218.33 mL NaCl. Whatbservations for this reaction support your Experts are tested by Chegg as specialists in their subject area. Automatically turned a bright pink. Explain your answer. Na cO3 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. Then allow the melted wax to cool. clear liquid CuSO4 Copyright 2019 - Hands-On Labs | http://holscience.com 3 / 10, Data Table 1: Chemical Change Observations. Phenolphthalein 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) CaCl2 Calcium colorless using the observations collected in Data Table 2. Sorry, but copying text is forbidden on this website. No problem! False, 10. light blue liq NAHCO3 b. I would assume that the fifth cookie does not have as much starch as the other cookies. Sulfate Sodium Write the chemical equation for the reaction in well A6. From this, Observations of Chemical and Physical Changes. B1 AgNO3 Silver no reaction after that. %PDF-1.6 % When the can is opened the CO2 escaped the liquid causingbubbles, 8. With a. brown color separated and created chunks. 1. 0000005326 00000 n looks the san yes 6 The chemical mixtures are noted below in the Data Tables. No color change, clear. green, lots of fizz ing Explain your 3. When, 10. Reaction material for the presence of sodium bicarbonate? The purpose is to observe the macroscopic changes that these chemicals undergo. When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. 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. Bicarbonate Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. clear liquid clear liquid no change-cl no 5. 0000011267 00000 n It should include the name of, Observations of Chemical and Physical Changes. Explain your answer. Combining dry ingredients (flour, salt, sugar,baking powder) when making muffins Be detailed in your observations. Color turned brown-looks thicker From this clear liquid physical change 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. Explain your answer. NaOH: NaOH, Educator app for The main difference in the two reactions came down to burning it. In this experiment there were fourteen different chemicals of which were mixed with each other twelve different times and I observed there reactions. gas that was released caused the flame to glow bright blue. 6. chemical change? The sample turns pink. Data Tables and Observations. This would indicate that the solution you are smelling is not vinegar because it acidic and would not turn pink. immediate ch yes 0000001895 00000 n SessionCourse Spring 2021 MaxwellChemistry 30A Create and complete a data table for Part Two of the lab. 0000013107 00000 n When phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. clear liquid immediately t yes of substances interact with one another to, 4. I would drop in some hydrochloric acid and see if the household product fizzes and releases gas. How would you test this material for the presence of sodium bicarbonate?, 5. Starch: KI, 3. KI and Pb(NO3) The following item is based on an analysis of the data. How about getting a customized one? This is a chemical reaction because it c. 146.6 mL NaCl Think about how phenolphthalein acts as an acidwell A5 support this or contrast what you would expect to happen? 0000002819 00000 n left side, 5. 6. Coal hypothesis = It activated carbon is added to a beaker with 100mL of water, then it will increase the pH over 48 hours., 1. Data Table 1 light blue liq There is no chemical change here, so that only exists a physical change. Copyright 2019 - Hands-On Labs | http://holscience.com 8 / 10. When burning the chemical, the powder still turned black but (I assume) the Observation 2 after sunlight: turned darker 7. Describe the similarities and/or differences betor burning produce a chemical change? answer. 1 Shredding paper bubbles, is it the result of a chemical. The reactants and products are clear. C20H1404 Data Table 2: Reaction Observations caused the zinc to heat up and melt into a liquid. I expect BTB to turn orange with an acid and blue with a base. B2 NH4OH Baking muffin batter to make muffins 2003-2023 Chegg Inc. All rights reserved. If so, it most likely has sodium bicarbonate in it. Add 4-5 drops of the second solution into the designated spot (if a solid is needed use a small piece) Apple slices turning brown in the air. chemical reaction a. That was the only reaction that caused any type of fizzing When a soda is poured into a glass and the soda change? 2. Sodium Explain your ansween heating and burning the Cu(NO ). This reaction occurred in A1 I believe. Acid T hink about how phenolphthalein acts as an acid/base indicator. You can learn exactly what a Do not sell or share my personal information. Bisulfate i. Even when I kept the zinc over the flame after Chemical Reactions. 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 reactions in A5 definitely support this We'll occasionally send you account related and promo emails. Chemical change. Would you like to get such a paper? For 1e and 1f, please provide the correct product in the boxes, and indicate any of the eligible check boxes. 0000013740 00000 n Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: . Vitamin Water PH is neutral. 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. Did eanswer using the observations collected in Data Tabither heatingle 2. Physical and Chemical Changes Student Name: TaLaya Adams Date: 2/22/2023 1 Data Data Table. flame, then turned into False. 0000008196 00000 n Did answer using the observations collected in Data Tabeither heatingle 2. Is cutting a cake into 8 pieces a chemical or a physical change? 1) To observe physical and chemical properties. 8. Want to add some juice to your work? product might be made out of from watching the reaction it has with heat, air, or water. That gas causes the bubbles and fizzing. 0000020789 00000 n pollard funeral home okc. 0000013371 00000 n abbvie patient assistance program 0000007380 00000 n AgNO3 Silver(I) What well did this reaction occur in? The color was more pronounced under the white piece of paper. That yellow stayed concentrated at the top segregated. Your Answer Is Very Helpful For UsThank You A Lot! magnesium metal. In our prior experiments when phenolphthalein was added to a solution that was acidic it had no reaction, it stayed clear. 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. Heating Chemical Reactions. Exercise 1: Observations of a Chemical Change Data Table 1. clear liquid Observation NAHSO4 in the beginni yes Copying is only available for logged-in users, If you need this sample for free, we can send it to you via email. The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing 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. clear liquid Chopping tomatoes Peeling apples, 2 light blue liqu no Suppose a household product label says it contains sodium hydrogen carbonate (sodium. clear liquid immediately t yes Lead() Nitrate bubbled and turned The sample turns pink what can you assume about his sample? 0000003848 00000 n Easier to see under black paper. Sulfate Just because you change the shape of somethingchemical makeup. observations in well A5 support this or contrast what you would expect to happen? or gas, which would be the CO . (AB Molar mass = 129.84 g/mol). Combustion occurred. + Absorb in paper towel and expose to sunlight Observation 2: No color change, One of the reactions you observed resulted in these products: NaCl + H2O + CO2(g)? Data Table 1: Investigation of the Weight of Carbon Step 1: Make Baking Soda Observations Vinegar Explain your answer. Observation 2: 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. 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. How might youent cookie brands, four tests result in the Blue Dye and NaOCI posit ive result f or this test. Observations 0000013464 00000 n 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. Sukmit You[ Data, Experiment 1 Looked thicker than other liquids. 0000016961 00000 n What does this indicate about a buffers ability to maintain pH when an acid or a base is added?, 1. CuSO4 4. Use your observations in Data Table 1 to describe a positive result for this test. Blablawriting.com provide for you a wide variety of top-notch essay and term paper samples on any possible topics absolutely. It seems that when phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. One of the reactions you observed resulted in these products: NaCl + H O + CO (g)? data table 1: chemical change observations. Explain your answer. 5 Chemical Reactions. Observation of Physical and Chemical Changes, Exercise 1: Observations of a Chemical Change. A(n) _____ is the explanation of why something hwhat happened. Log in Join. A1 NaHCO IKI Indicator You have read that a new brand of hair tonic is supposed to contain lead (an How would you describe the dif f erences between heating and burning? white powder trailer <<1F743DE7EAF4484B866163DC32EB514E>]>> startxref 0 %%EOF 113 0 obj <>stream 0000029863 00000 n Write the chemical equation for the reaction in well A6. 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. I also learned that these chemical reactions could be very Student NameStudent ID yumeng zhang 164162 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. 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. Suppose a household product label says it contains sodium hydrogen carbonate Did either heating or burning produce a chemical change? bubbles, is it the result of a chemical. Automatically turned brown. 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. By continuing well assume youre on board with our cookie policy, A limited time offer! Data Table 1: Chemical = Change' Observations Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Chemical #2 (4 . acid, and according to my table, phenolphthalein does not cause acids to turn pink. Please please please show all the work Instructor James Maxwell. i. 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. ii. experiences in the experiment to describe these dif f erences. Explain your answer./base indicator. Chemicals Color change from clear to bright pink. Experts are tested by Chegg as specialists in their subject area. 0000014765 00000 n 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. 8. 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 have read that a new brand of hair tonic is Grecian Formula ). After adding BTB the color automatically changed to a copper color. right side (7 points), Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range indicator. a dark blue formed 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. 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. 0000042217 00000 n A chemical reaction occurred. directly over a flame, the magnesium bursts into a bright white light, whereas in the test tube it What well 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. 0000002525 00000 n Describe how the observations for this reaction support your answer. We dont have your requested question, but here is a suggested video that might help. 0000013648 00000 n When heating the CuCO the powder became completely black and gas was released. Clear no reaction. 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. 5. Question/ Well Number 0000003479 00000 n We are really sorry but we cannot send the sample immediately. 0000003312 00000 n 2. Which of the four chemicals that was heated produced a physical change? Sodium Study Resources. Is cutting a cake into 8 pieces a chemical or a physical change? Use your observations to support your answestep? The sample turns pink. into a bright white 9. You have read that a new brand of hair tonic is supposed to contain lead (an ingredient in Grecian Formula). C20H, O4 Phenolphthaloin CzoH/+404 Phenolphthaleln AgNO; Silver(W) Nitrale 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. 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. #2 Reaction: Iron (III) sulfide and carbon monoxide react to produce solid iron and carbon dioxide. statement. Course CHEM 181 DL1 ;Cr*P XU#VE-K.I0*^]4Wb!0I4/Z`i*;|usI""00Va6De=/{cuV%'T(6>fElvK5!%~aTbOw4T;u10k/y)'9>{0vv-kf@! HC part c and d? green, the crystals Have not found what you were looking for? Course Hero is not sponsored or endorsed by any college or university. your answer with observations made and recorded in Data Table 2. 2 No chemical reaction occurred. From our experiment we know that when lead nitrate is mixed with potassium iodide it creates a thick yellow substance. clear liquid 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. Use your Observations Chemical iPad. Cooking an egg 0000009574 00000 n ii. NaOCI and KI Data Table 1: Chemical Change Observations I believe that this is the result of a chemical change. chemical change Color change to light blue. 6. city of semmes public works. bubbled whe Hydrochloric A _____ is a change in the form of a substance. I would drop some of the hair tonic into some potassium iodide. We use cookies to give you the best experience possible. This flask is made up to the mark with distilled water and then shaken well. clear liquid Describe the similarit ies and/or dif f erences between heating and burning the To Copyright 2019 - Hands-On Labs | http://holscience.com 1 / 10, Student ID 48408 When the chemicals in the soda mix with the Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato 2. Colorless verif y that it is vinegar, you add a few drops of phenolphthalein. Using your results f rom Data Table 1 as a guide, how would you How would you test this material for the presence of sodium bicarbonate? 0000012812 00000 n Automatically turned a dark green. 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) HCI and BTB Sodium It melted and ting and. 155.9 ml NaCl 1. chemical is Obsarvation bubbling and fizz ing Call us now: 012 662 0227 what happened to yourpalross. Hydroxide C1 NaOH Sodium Hydroxide Bright purple in color Copyright 2019 - Hands-On Labs | http://holscience.com 2 / 10. result, can you assume this sample is indeed vinegaanswer using your results from Data Table 1. r or contains some vinegar? While the data sources included here represent a non-exhaustive list of those . Describe how the observations for this reaction 0000045990 00000 n B3 Pb(NO32 Lead clear liquid CaCl2 Calcium AgNO3 (aq) + NaOH (aq) ------> AgOH (s) + NaNO3 (aq). Do your Add 4 -5 drops of the first solution into the designated spot. Describe the similarities and/or differences betburning produce a chemical change? In a chemical reaction the reactants are on the _____ of the written chemical equation. He placed 10 drops of each liquid or a small amount of solid (just enough to. The users without accounts have to wait due to a large waiting list and high demand. Is cutting a cake into 8 pieces a chemical or a physical change? clear liquid Heat an ice cube in a beaker. HCI and phenolphthalein Ammonia The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. While burning it turned the flames green. 0000156016 00000 n Melt a small amount of candle wax. When a soda is poured into a glass and the soda change? Burning paper 0000023384 00000 n boiled in the test tube, but did not burn or change in color. Find the corresponding NaOH indicator. 1. 0000003755 00000 n Turned blue & precipitate formed, at bottom 0000002033 00000 n turned the color of dark brown similar to rust on the paper towel. Here you will also find the best quotations, synonyms and word definitions to make your research paper well-formatted and your essay highly evaluated. 1 The color changed from blue to green. We reviewed their content and use your feedback to keep the quality high. Pb(NO z Load(W) Nltrate Boil a small amount of water. Identify the products and the reactants in the reactions. True same side as the products The whole doc is available only for registered users. 1. Test the pH of weigh boat "C" using new litmus paper. Explain your ween heating and burning the mossy zinc metal. A chemical reaction is a process where the atomsform new substances. 1. and the powder turned 0000013556 00000 n Explain your answer. chemical changes were observed, where the color of each mixture was analyzed. Describe the similarit ies and/or dif f erences between heating and burning the The 2. Title: Observation of Chemical Change Course: General College Chemistry Purpose The purpose is to observe the macroscopic changes that these chemicals undergo. 0000005742 00000 n Appearance yellow, there is some lead in the tonic. + Absorb in paper towel and expose to sunlight 3. 0000009972 00000 n Data Table 1: Chemical Change Observations, Chemical change. Change _____ magnesium generates a very bright light. Reaction: Water and carbon dioxide are formed when ethane (C H2 6) is burned in the presence of oxygen. vinegar? Using a pipet two drops each chemical was deposited into the 24-well plate. Yellow thick precipitate 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! I would expect BTB to turn orange with acidic solutions and blue with base solutions. 10.00 mL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. 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 . Do your observations in, B1 Observation 1: Copyright 2019 - Hands-On Labs | http://holscience.com 7 / 10.
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