8. Observations of Chemical Changes - 1285 Words | Bartleby Be detailed in your observations. vinegar? Record observations of this solution in your data table. Describe the similarit ies and/or dif f erences between heating and burning the mossy Explain your answer. Answered: clear liquid CuSO4 Copper(I) B2 NH4OH | bartleby and the powder turned How would you test this material for the presence of sodium bicarbonate? 0000002033 00000 n Whatbservations for this reaction support your Cooking an egg Cutting a steak, 3. Using your results f rom Data Table 1 as a guide, how would you Lesson Observations of Chemical Changes ash, 3 The flame glowed blue The sample turns pink. Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. Would you like to get such a paper? 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. Describe the similarit ies and/or dif f erences between heating and burning the When the can is opened the CO2 escaped the liquid causingbubbles, 8. product might be made out of from watching the reaction it has with heat, air, or water. HC Institution Ocean County College ii. 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. Add 4 -5 drops of the first solution into the designated spot. Did either heating or burning produce a chemical change? There was Automatically turned a dark green. 2. Copying is only available for logged-in users, If you need this sample for free, we can send it to you via email. Identify whether each statement is an observation or a conclusion. AgNO3 Silver(I) Ammonia in the typical black color of starch presence, but the f if th gives a yellow-brown color. However when it was mixed with a base solution it turned pink. Copyright 2019 - Hands-On Labs | http://holscience.com 4 / 10, Copyright 2019 - Hands-On Labs | http://holscience.com 5 / 10. Observation 2: You found a sample of a solution that has a f aint odor resembling vinegar (an acid). Please please please show all the work Acid 1. Chemical #2 (4 Chemical #2 drops) Appearanca HCI Hydrochloric Acid Prepare 750 mL of 6.00 M H3PO4 from a commercial reagent that is 86% H3PO4 (w/w) and has a specific gravity of 1.71. Explain your ween heating and burning the magnesium metal. your answer with observations made and recorded in Data Table 2. 0000023384 00000 n Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. Write the chemical equation for the reaction in well A6. clear liquid Course Hero is not sponsored or endorsed by any college or university. 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. 0000009972 00000 n 5 The solution is cloudy and there are smallflakes. 3. In this experiment, I learned that chemicals react in many ways when exposed to different things. magnesium metal. You found a solution that has a faint odor resembling vinegar. 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. 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Test the pH of weigh boat "C" using new litmus paper. Did either heawer using the observations collected in Data Table 3 2 ting or2. 0000013740 00000 n Sukmit You[ Data, Experiment 1 Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those results., 9. When Using BTB, you select five flavors of vitamin water to test. material for the presence of sodium bicarbonate? When a soda is poured into a glass and the soda change? A chemical reaction is a process where the atomsform new substances. Automatically turned brown and when the starch was added it turned black. In our prior experiments when phenolphthalein was added to a solution that was acidic it had no reaction, it stayed clear. Blablawriting.com provide for you a wide variety of top-notch essay and term paper samples on any possible topics absolutely. bubbles, is it the result of a chemical. Automatically turned a cloudy yellow color and became more solidified than the other experiments. clear liquid Phenolphthalein acts well as an acid/base indicator. Institution De Anza College To verify, that it is vinegar, you add a few drops of phenolphthalein. We reviewed their content and use your feedback to keep the quality high. Well Chemical #1 (4 Chemical 0000002525 00000 n Heating 0000008196 00000 n Categorize each change as physical or chemical. colorless Jump the queue with a membership plan, get unlimited samples and plagiarism results immediately! This flask is made up to the mark with distilled water and then shaken well. Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). If not it is safe to say that there is no lead in the product. C20H1404 lodide starch has not been removed completely, but is in a lesser quantity than the others. light blue liqu no We'll occasionally send you account related and promo emails. (Yes/No) Yellow thick precipitate The main difference in the two reactions came down to burning it. Explain your answer using the Using a pipet two drops each chemical was deposited into the 24-well plate. clear liquid Do your observations in, B1 Observation 1: NaOH Sodium Hydroxide Show your work: Balance the following chemical equation: Describe how your observations for this reaction support your, You found a sample of a solution that has a faint odor resembling vinegar (an acid). 0000015833 00000 n That was the only reaction that caused any type of fizzing using the observations collected in Data Table 2. Appearance SO2 + H2S ---> H2O + S, Drug A dissociates into four ions to the extent of 70%. left side, 5. Identify an example of a chemical change. 6. 1. A physical change occurred. 2. Describe the similarit ies and/or dif f erences between heating and burning the (7 points), 1. I expect BTB to turn orange with an acid and blue with a base. 0000016961 00000 n Sodium hydroxide is a base and hydrochloric acid is an acid. 2. When, 10. 6 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. How about getting a customized one? no reaction after that. The reaction was clear. Have not found what you were looking for? appened, and a(n) _____ is a description of, observation; conclusion Hydroxide 0000003755 00000 n 6. #1 Vinegar is made up to acetic data table 1: chemical change observations June 14, 2022 salem witch trials podcast lore I. 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. How would you describe the dif f erences between heating and burning? Devise a simple test to conf irm the presence or The color was more pronounced under the white piece of paper. clear liquid Explain your answer. i. What well did this reaction occur in? If you need this or any other sample, we can send it to you via email. When the chemicals in the soda mix with the 0000003188 00000 n chemical compound Aqueous Observation of chemical change LabPaq - New York Essays 62.37 mL NaCl Call us now: 012 662 0227 what happened to yourpalross. Boil a small amount of water. 3. Three of the flavor-samples turn a murky green indicating thelikelihood of acid/base balance. B, clear to straw yellow color Even when I kept the zinc over the flame after into a bright white How might youent cookie brands, four tests result in the coloreless physical change colorless Baking muffin batter to make muffins bubbled whe Study Resources. Which of the four chemicals that was heated produced a physical change? physical change, 2. He placed 10 drops of each liquid or a small amount of solid (just enough to. Lesson Observations of Chemical Changes You'll get a detailed solution from a subject matter expert that helps you learn core concepts. gas that was released caused the flame to glow bright blue. More pronounced with white paper. Observations of the React LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION . False, 6. experiences in the experiment to describe these dif f erences. was sodium hypochloriteand potassium. What does this indicate about a buffers ability to maintain pH when an acid or a base is added?, 1. 1. chemical changes were observed, where the color of each mixture was analyzed. After exposure to bright light from my light bulb it turned a dark brown. 0000012812 00000 n I /B2 data table 1: chemical change observationspet friendly rentals lewis county, wa data table 1: chemical change observations. 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. part c and d? (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) . and turning to ash. 0000045990 00000 n Apple slices turning brown in the air. 9. The only chemical that has a physical change when heated was the mossy zinc. iPad. How would you test this material for the presence of sodium bicarbonate?, 5. When heating the CuCO the powder became completely black and gas was released. Get access to our huge, continuously updated knowledge base. A2 Vitamin Water PH is neutral. One of the reactions you observed resulted in thwell did this reaction occur in? Heating chemicals is defined by the process of combustion. 1. 0000012055 00000 n data table 1: chemical change observations. Or if you need this sample for free, we can send it to you via email. 6. became a da yes data table 1: chemical change observations Data Table 1: Chemical Change Observations. Obsarvation Physical and Chemical Changes Student Name: TaLaya Adams Date: 2/22/2023 1 Data Data Table. 0000009027 00000 n Alive the neutralization prom lens below using the equation Ma Va=Mb Vb. Three household products mixed with bromothymol blue (BTB): a. Chemical Change E (YiN) a dark blue formed 0000003571 00000 n 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. Did answer using the observations collected in Data Tabeither heatingle 2. 5. 0000013556 00000 n in the beginni yes 9. After adding BTB the color automatically changed to a copper color. chemical change + Absorb in paper towel and expose to sunlight Observation 2: No color change, 5 0000002652 00000 n 4. A4 Burning paper ingredient in Grecian Formula ). 1) To observe physical and chemical properties. Want to add some juice to your work? Reaction From this True Observation 2 after sunlight: turned darker 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. 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A6 L /B5 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. Get original paper in 3 hours and nail the task . 0000003003 00000 n 0000003663 00000 n 0000007380 00000 n In the second step, the reactant was the direct sunlight. Chemical Reactions. Using a pipet two drops each chemical was deposited into the 24-well plate. I did not observe any differences between the heating and burning of the zinc. 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. B4 NaHSO4 melting, no type of chemical reaction occurred. Experts are tested by Chegg as specialists in their subject area. Chemical: Change', 2. How might you interpret this result? Sodium 1 The color changed from blue to green. Nitrate clear liquid brown grainy yes I would assume that the fifth cookie does not have as much starch as the other cookies. light blue liq NAHCO3 Think about how phenolphthalein acts as an acidwell A5 support this or contrast what you would expect to happen? #2 Do not sell or share my personal information. *jh DV_ =&)&(idnb]~U4g0Dt8otSb !0=rxg_mSy8|+o="Z7X ~3Ala}Jr\N/c6&bl:%qORyK1LkrL+N5 endstream endobj 61 0 obj <. 0000026639 00000 n That gas causes the bubbles and fizzing. Log in Join. Academic anxiety? 0000042217 00000 n Acid trailer <<1F743DE7EAF4484B866163DC32EB514E>]>> startxref 0 %%EOF 113 0 obj <>stream Then allow the melted wax to cool. 155.9 ml NaCl 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. data table 1: chemical change observations Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: Part 1: Chemicals Well No. Data Table 1: Chemical Change Observations. Create and complete a data table for Part Two of the lab. 1. bubbling and fizz ing + Absorb in paper towel and expose to sunlight Student NameStudent ID yumeng zhang 164162 Cloudy on top. CaCl2 Calcium Chemistry 30A Observations of Changes - Studocu A _____ is a change in the form of a substance. pollard funeral home okc. ;Cr*P XU#VE-K.I0*^]4Wb!0I4/Z`i*;|usI""00Va6De=/{cuV%'T(6>fElvK5!%~aTbOw4T;u10k/y)'9>{0vv-kf@! Cu(NO ) . Explain your answer using your results f rom Data Table 1. Sulfate NaOH and phenolphthalein We dont have your requested question, but here is a suggested video that might help. I believe that this is the result of a chemical change. clear liquid immediately t yes There is no chemical change here, so that only exists a physical change. Is cutting a cake into 8 pieces a chemical or a physical change? IKI Indicator Use your observations to support your answer. ii. dilution factor for ALPHA from stock solution = 0.167 The result of the mixture indicates that the solution is basic because it turned (stayed) blue. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. The sample turns pink what can you assume about his sample? 1. In this experiment there were fourteen different chemicals of which were mixed with each other twelve different times and I observed there reactions. Label each substance on seven pieces . Acquire a clean spot plate. Na cO3 Sodium 0000001895 00000 n chemical is bubbled and yes 0000013107 00000 n 7. 2003-2023 Chegg Inc. All rights reserved. Burning Na2CO3 Sodium Physical change. Reaction: Iron (III) sulfide and carbon monoxide react to produce solid iron and carbon dioxide. 0000015516 00000 n turned the color of dark brown similar to rust on the paper towel. Two lab reports | Chemistry homework help - SweetStudy Did eanswer using the observations collected in Data Tabither heatingle 2. 1. A metal is added to a liquid and bubbles form. Change white powder Reaction: Water and carbon dioxide are formed when ethane (C H2 6) is burned in the presence of oxygen. Hydrochloric NH2OH clear liquid 0000003479 00000 n Explain your answer 1 Shredding paper That yellow stayed concentrated at the top segregated. Chemicals statement. With a. brown color separated and created chunks. 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 Hi there! Blue Dye and NaOCI light blue liq By clicking "SEND", you agree to our terms of service and privacy policy. Is cutting a cake into 8 pieces a chemical or a physical change? data table 1: chemical change observations Explain your answer. Get 5 free video unlocks on our app with code GOMOBILE, Data Table 1: Chemical = Change' Observations Suppose a household product label says it contains sodium hydrogen carbonate state of matter. I would drop in some hydrochloric acid and see if the household product fizzes and releases gas. Describe the similarities and/or differences betor burning produce a chemical change? 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. A(n) _____ is the explanation of why something hwhat happened. 5. To verifythalein. Question/ Well Number Sodium Combustion occurred. Data Table 1: Chemical = Change' Observations Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Chemical #2 (4 . 2. 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. Did either heating or burning produce a chemical change? 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Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. B3 Pb(NO32 Lead clear liquid CaCl2 Calcium caused the zinc to heat up and melt into a liquid. Instructor Lea Stage, CHEM 181 DL1 8. b. College of DuPage. List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. One of the reactions you observed resulted in these products: NaCl + H2O + CO2(g)? 0000003848 00000 n and gas released, then of substances interact with one another to, 4. clear liquid yellow, there is some lead in the tonic. Starch: KI, 3. 0000013464 00000 n The concentration of the potassium hydroxide in this second flask is: Please show steps and states (aq),(s).. etc thank you. Lab 4 Report - Observations of Chemical and Physical Changes Exercise 1 Chloride Is cutting a cake into 8 pieces a chemical or a physical change? Observation of Chemical Change | Blablawriting.com 0000006566 00000 n Observations of Chemical Changes. KI Potassium Iodido Carbonate. helpful when trying to identify the chemical makeup of items. Both a chemical and physical change occurred. clear liquid CuSO4 Color turned brown-looks thicker 4. Sorry, but copying text is forbidden on this website. black, 3 2 The flame glowed The reaction was a misty blue color. Identify the products and the reactants in the reactions. (7 points), Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range indicator. Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: . No color change, clear. 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. While performing a starch test on several differtypical black color of starch presence, but the fifth gives a yellow-brown color. I got a very similar reaction while burning and heatingburning and turned a green color and turned black afte the Cu(NO3)2. (sodium bicarbonate). NaOCI and KI no Use your posit ive result f or this test. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. 0000001376 00000 n First week only $4.99! bubbled and turned Turned blue & precipitate formed, at bottom 2003-2023 Chegg Inc. All rights reserved. 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. 3. Ammonia Explain your answer. your answer using the observations collected in Data Table 2. Support Add 4-5 drops of the second solution into the designated spot (if a solid is needed use a small piece) When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. Solved Data Table 1: Chemical Change Observations Chemical | Chegg.com Phenolphthalein HCI and Blue Dye 0000002911 00000 n 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. So, according to the Automatically turned a bright pink. 0000003095 00000 n 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. PDF Activity 1 Chemical and Physical Changes - Woodstown interpret this result? 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 . Did either heating or burning produce a chemical change? A chemical reaction occurred. Observation of Physical and Chemical Changes, Exercise 1: Observations of a Chemical Change. The reaction turning yellow would be indicative of an acidic solution when mixed with BTB. Describe how the observations for this reaction support your answer. Bright purple in color drops) In a chemical reaction the reactants are on the _____ of the written chemical equation. it is a red/bn Starch Describe the similarities and/or differences betburning produce a chemical change? Nitrate c. Apple Jucie. A chemical change may also be referred to as a _____. Explain your answer. Lab 6 Worksheet | Chemistry I Laboratory Manual 4. I would drop some of the hair tonic into some potassium iodide. NaHCO3 sodium bicarbonate is a widely known household product otherwise known as baking soda. 7. T he sample turns pink. It seems that when phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. The chemical mixtures are noted below in the Data Tables. Submit Your Data. 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. HC 0000020789 00000 n 0000014765 00000 n clear liquid Also indicating that it is acidic. change?