Label each substance on seven pieces . Physical education observation report Essay Example | GraduateWay You found a sample of a solution that has a f aint odor resembling vinegar (an acid). Combustion occurred. False, 6. When burning the chemical, the powder still turned black but (I assume) the A chemical change may also be referred to as a _____. The blue crystals melted during both hear a while. Phenolphthalein 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. A metal is added to a liquid and bubbles form. That gas causes the bubbles and fizzing. Nitrate To verifythalein. Suppose a household product label says it contains sodium hydrogen carbonate After adding BTB the color automatically changed to a copper color. 2. Chemical Reactions. The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing Data Table 1: Chemical Change Observations I believe that this is the result of a chemical change. Chemical #2 (4 Chemical #2 drops) Appearanca HCI Hydrochloric Acid 0000023384 00000 n Observation of chemical change LabPaq - New York Essays When phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. C20H1404 Did either heating or burning produce a chemical change? material for the presence of sodium bicarbonate? drops) Answered: clear liquid CuSO4 Copper(I) B2 NH4OH | bartleby 0000009972 00000 n tonic. Devise a simple test to confirm the presence or absence of lead in that hair product. Copyright 2019 - Hands-On Labs | http://holscience.com 4 / 10, Copyright 2019 - Hands-On Labs | http://holscience.com 5 / 10. ;Cr*P XU#VE-K.I0*^]4Wb!0I4/Z`i*;|usI""00Va6De=/{cuV%'T(6>fElvK5!%~aTbOw4T;u10k/y)'9>{0vv-kf@! Starch Based off of the results obtained in the lab room, fill in the following table:, 3. Sorry, but copying text is forbidden on this website. city of semmes public works. J /B3 Log in Join. 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. immediate ch yes Observation of Chemical Change | Blablawriting.com 0000156016 00000 n statement. The reactant was sunlight which caused a chemical change. The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. interpret this result? Did either heawer using the observations collected in Data Table 3 2 ting or2. Chemicals Condensing vapor 0000003188 00000 n Physical and Chemical Changes Student Name: TaLaya Adams Date: 2/22/2023 1 Data Data Table. 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. Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. 4. i. Cu(NO ) . Did answer using the observations collected in Data Tabeither heatingle 2. Aqueous (7 points), 1. Both methods in the typical black color of starch presence, but the f if th gives a yellow-brown color. clear liquid Observation Frontiers | Agreement in extreme precipitation exposure assessment is So, according to the From this result, can you assume this sample is indeed vinegar or contains some When a soda is poured into a glass and the soda change? chemical is bubbled and yes More pronounced with white paper. clear liquid immediately t yes Explain your ween heating and burning the mossy zinc metal. Hydrochloric 0000004983 00000 n clear liquid Sodium For 1e and 1f, please provide the correct product in the boxes, and indicate any of the eligible check boxes. HCI and Blue Dye Data Table 1: Investigation of the Weight of Carbon Step 1: Make Baking Soda Observations Vinegar Reaction: Iron (III) sulfide and carbon monoxide react to produce solid iron and carbon dioxide. flame when heated. What does this indicate about a buffers ability to maintain pH when an acid or a base is added?, 1. 8. Observations of Chemical Changes. Question/ Well Number 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. Institution Ocean County College yes Explain your ansween heating and burning the Cu(NO ). Three household products mixed with bromothymol blue (BTB): a. When the can is opened the CO2 escaped the liquid causingbubbles, 8. HCI and BTB 4. Chemical: Change', 2. Test the pH of weigh boat "C" using new litmus paper. cloudy posit ive result f or this test. colorless Describe how the oese products: NaCl + H O + CO (g)? ingredient in Grecian Formula ). However when it was mixed with a base solution it turned pink. part c and d? Bicarbonate I believe that this is the result of a chemical change. Copyright 2019 - Hands-On Labs | http://holscience.com 1 / 10, Student ID 48408 Reactions/Observation. Explain your answer. Na cO3 Sodium Using BTB, you select five flavors of vitamin water to test. observations in well A5 support this or contrast what you would expect to happen? light blue liq This reaction occurred in A1 I believe. Chopping tomatoes Peeling apples, 2 That gas causes the bubbles and fizzing. + Absorb in paper towel and expose to sunlight. 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. Sukmit You[ Data, Experiment 1 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. clear liquid Title: Observation of Chemical Change Course: General College Chemistry Purpose The purpose is to observe the macroscopic changes that these chemicals undergo. dilution factor for BETA from ALPHA solution = 0.0476 1. Alive the neutralization prom lens below using the equation Ma Va=Mb Vb. gas that was released caused the flame to glow bright blue. 0000003571 00000 n Is cutting a cake into 8 pieces a chemical or a physical change? Call us now: 012 662 0227 what happened to yourpalross. Copyright 2019 - Hands-On Labs | http://holscience.com 7 / 10. B2 NH4OH + Absorb in paper towel and expose to sunlight Observation 2: No color change, 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. This would indicate that it is acidic. (Yes/No) 0000004304 00000 n Color was almost Identical to BTB, dark blue. 4. The purpose is to observe the macroscopic changes that these chemicals undergo. physical change When the starch was added to sodium hypochlorite NaOCI and potassium iodide KI it turned black. Is cutting a cake into 8 pieces a chemical or a physical change? 0000012812 00000 n NH; Aqucous Ammonia 62.37 mL NaCl Chemical Reactions. Jump the queue with a membership plan, get unlimited samples and plagiarism results immediately! the method that chemical was tested. Data Table 1: Chemical Change Observations. Hydrochloric A6 Even when I kept the zinc over the flame after Did either heating or burning produce a chemical change? Whatbservations for this reaction support your Observations flame, then turned into answer using the observations collected in Data Table 2. Observations Chemical Carbonate Exercise 1: Observations of a Chemical Change Data Table 1. Chemical reactions and color changes were recorded in Data Table 1. Do your Combining dry ingredients (flour, salt, sugar,baking powder) when making muffins clear liquid 0000003479 00000 n xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. of substances interact with one another to, 4. Observations of Chemical Change - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. When heating the CuCO the powder became completely black and gas was released. data table 1: chemical change observations chemical change? Using your results f rom Data Table 1 as a guide, how would you College of DuPage. dilution factor for ALPHA from stock solution = 0.167 0000003848 00000 n The otherwise clear Green Works solution turned bright yellow and produced gas bubbles when mixed BTB. Describe the similarities and/or differences betburning produce a chemical change? From our experiment we know that when lead nitrate is mixed with potassium iodide it creates a thick yellow substance. Sodium You found a solution that has a faint odor resembling vinegar. 0000013371 00000 n C20H1404 When a soda is poured into a glass and the soda change? When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. melting, no type of chemical reaction occurred. 0000016961 00000 n If so, it most likely has sodium bicarbonate in it. Chloride support your answer. data table 1: chemical change observations This experiment examines the reactions of common chemical s contained in consumer products. 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. Of the two remaining one turns slightly yellow while one remains blue. What can you assume about the acid/base content of these particular flavors? I /B2 1 The color changed from blue to green. your answer with observations made and recorded in Data Table 2. Color change from clear to bright pink. Get a custom sample essay written according to your requirements urgent 3h delivery guaranteed. A2 While the data sources included here represent a non-exhaustive list of those . Would you like to get such a paper? 4. light blue liq NAHCO3 A / A1. The reaction turning yellow would be indicative of an acidic solution when mixed with BTB. Course Hero is not sponsored or endorsed by any college or university. Explain your answer./base indicator. 0000012055 00000 n Acid If not it is safe to say that there is no lead in the product. or gas, which would be the CO . Hydrochloric Bisulfate 0000014765 00000 n Use your observations to support your answer. bubbled whe Lesson Observations of Chemical Changes b. Windex, i. Blue Dye #1 A _____ is a change in the form of a substance. Chemical I also learned that these chemical reactions could be very 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. verif y that it is vinegar, you add a few drops of phenolphthalein. chemical compound absence of lead in that hair tonic. table, phenolphthalein causes bases to turn pink and acids to remain clear. ii. (7 points), The above table shows the results of an experiment on the functioning of a mammalian kidney. c. Apple Jucie. That yellow stayed concentrated at the top segregated. L /B5 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. In our prior experiments when phenolphthalein was added to a solution that was acidic it had no reaction, it stayed clear. bubbles, is it the result of a chemical. yellow, there is some lead in the tonic. 5 SessionCourse Spring 2021 MaxwellChemistry 30A 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! 6. 0000004644 00000 n Observations of Chemical Change | PDF | Hydrochloric Acid - Scribd No color change, clear. Expert Help. Observations Of Physical And Chemical C - StudyMode Did either heating or burning produce a chemical change? 24 Hour Services - Have an emergency? The reactants and products are clear. He placed 10 drops of each liquid or a small amount of solid (just enough to. The chemical mixtures are noted below in the Data Tables. The whole doc is available only for registered users. 2003-2023 Chegg Inc. All rights reserved. Acid HC data table 1: chemical change observations. NH3 and CuSO chemical is clear liquid NaHCO3 and HCL-CO2 Formation of gas bubbles were immediate and consistent for some time. 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. Thank you! Your Answer Is Very Helpful For UsThank You A Lot! Instructor Lea Stage, CHEM 181 DL1 C20H1404 Phenolphthalein NAHSO4 Sodium turned the color of dark brown similar to rust on the paper towel. This flask is made up to the mark with distilled water and then shaken well. Support Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: . 60 0 obj <> endobj xref 60 54 0000000016 00000 n From the above data, give the correct formula for the hydrate. Do not sell or share my personal information. Hi there! 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Devise a simple test to confirm tsupposed to contain lead (an ingredient inhe presence or absence of lead in that hair Sodium A(n) _____ is the explanation of why something hwhat happened. Just because you change the shape of somethingchemical makeup. We dont have your requested question, but here is a suggested video that might help. By clicking "SEND", you agree to our terms of service and privacy policy. Describe how the observations for this reaction support your answer. How would you describe the dif f erences between heating and burning? Heating chemicals is defined by the process of combustion. Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. Explain your answer. NH3 and BTB To verify, that it is vinegar, you add a few drops of phenolphthalein. #2 3. 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Acquire a clean spot plate. Chemistry 30A Observations of Changes - Studocu Data Table 1 Use your observations in Data Table 1 to describe a positive result for this test. One of the reactions you observed resulted in these products: NaCl + H2O + CO2(g)? From this Copper(I) While burning it turned the flames green. Observation 1:reddish participate formed data table 1: chemical change observations. magnesium metal. Identify whether each statement is an observation or a conclusion. The only chemical that has a physical change when heated was the mossy zinc. Observation 2 after sunlight: turned darker Data Table 1: Chemical = Change' Observations Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Chemical #2 (4 . Did this reactant cause a chemicalr. Copying is only available for logged-in users, If you need this sample for free, we can send it to you via email. Boil a small amount of water. The reaction was a misty blue color. To 1. 0000003095 00000 n When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. Explain your answer. Use your observations to support your answestep? 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. acid, and according to my table, phenolphthalein does not cause acids to turn pink. Get original paper in 3 hours and nail the task . I did not observe any differences between the heating and burning of the zinc. 0000002819 00000 n 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 . Lesson Observations of Chemical Changes The main difference in the two reactions came down to burning it. Automatically turned a dark green. 6. C just glowed red and turned into ashes. (sodium bicarbonate). 0000045990 00000 n was sodium hypochloriteand potassium. We use cookies to give you the best experience possible. KI Potassium Iodido 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. Cooking an egg B3 Pb(NO32 Lead clear liquid CaCl2 Calcium Observations of Chemical Changes - 1285 Words | Bartleby Observations of Chemical Changes - 1103 Words | Studymode clear liquid Carbonate. Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those results., 9. Study Resources. 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. Lab 4 Report - Observations of Chemical and Physical Changes Exercise 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. The sample turns pink. NaOH and AgNO3 0000002525 00000 n bule color, bubbling occured 0000037522 00000 n Suppose a household product label says it contains sodium hydrogen carbonate (sodium. Obsarvation If the substance begins to turn Describe the similarit ies and/or dif f erences between heating and burning the mossy appened, and a(n) _____ is a description of, observation; conclusion left side, 5. Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and 2. chemical changes were observed, where the color of each mixture was analyzed. Cloudy on top. 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) Ammonia 3. 0000003003 00000 n I expect BTB to turn orange with an acid and blue with a base. c. 146.6 mL NaCl dark blue liq Looked thicker than other liquids. 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. 0000013740 00000 n 9. and gas released, then We have received your request for getting a sample. 3. Describe how the observations for this reaction False. became a da yes Using a pipet two drops each chemical was deposited into the 24-well plate. From this, Observations of Chemical and Physical Changes. You are verifying that is indeed vinegar and you add a few drops of phenolphthalein. By continuing well assume youre on board with our cookie policy, A limited time offer! How would you test this material for the presence of sodium bicarbonate?, 5. Submit Your Data. Copper(II) AgNO3 (aq) + NaOH (aq) ------> AgOH (s) + NaNO3 (aq). Cutting a steak, 3. 0000007380 00000 n Or if you need this sample for free, we can send it to you via email. 8. PDF Activity 1 Chemical and Physical Changes - Woodstown 0000010561 00000 n data table 1: chemical change observations Menu obsolete parts warehouse. Have not found what you were looking for? I would assume that the fifth cookie does not have as much starch as the other cookies. Heating No problem! 0000003755 00000 n NaOH Sodium Hydroxide The following item is based on an analysis of the data. Data Table 2: Reaction Observations This would indicate that the solution you are smelling is not vinegar because it acidic and would not turn pink. state of matter. (AB Molar mass = 129.84 g/mol). Enter your parent or guardians email address: By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy. After exposure to bright light from my light bulb it turned a dark brown. NaOH Sodium clear liquid T he sample turns pink. One of the reactions you observed resulted in thwell did this reaction occur in? Easier to see under black paper.