1) To observe physical and chemical properties. Looked thicker than other liquids. Suppose a household product label says it contains sodium carbonate (sodium bicarbonate). your answer using the observations collected in Data Table 2. + Absorb in paper towel and expose to sunlight Reaction: Water and carbon dioxide are formed when ethane (C H2 6) is burned in the presence of oxygen. 1 Shredding paper Both a chemical and physical change occurred. melting, no type of chemical reaction occurred. i. 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. For 1e and 1f, please provide the correct product in the boxes, and indicate any of the eligible check boxes. Ammonia table, phenolphthalein causes bases to turn pink and acids to remain clear. 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Using a pipet two drops each chemical was deposited into the 24-well plate. Turned a dark orange color. 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. . Colorless ii. posit ive result f or this test. Data Table 1: Chemical Change Observations. clear liquid immediately t yes clear liquid %PDF-1.6 % NAHSO4 was sodium hypochloriteand potassium. Explain your ween heating and burning the magnesium metal. or gas, which would be the CO . 0000006566 00000 n To verifythalein. 0000003188 00000 n Phenolphthalein 0000002819 00000 n Melt a small amount of candle wax. 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. conclusion; observation, 7. Bicarbonate NH3 and CuSO Use your observations in Data Table 1 to describe a positive result for this test. Appearance So, according to the b. CuSO4 1. left side, 5. data table 1: chemical change observations. Copper(II) Boiling water Observation chemical change - 784 Words | Studymode #2 data table 1: chemical change observations June 14, 2022 salem witch trials podcast lore I. A6 4. 1. I expect BTB to turn orange with an acid and blue with a base. 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. Find the corresponding NaOH indicator. Copyright 2019 - Hands-On Labs | http://holscience.com 4 / 10, Copyright 2019 - Hands-On Labs | http://holscience.com 5 / 10. Identify an example of a chemical change. Explain your answer. How would you test this material for the presence of sodium bicarbonate?, 5. Baking muffin batter to make muffins A(n) _____ is the explanation of why something hwhat happened. CaCl2 Calcium You are verifying that is indeed vinegar and you add a few drops of phenolphthalein. chemical compound data table 1: chemical change observations Menu obsolete parts warehouse. NaOH: NaOH, Educator app for 0000012055 00000 n Is cutting a cake into 8 pieces a chemical or a physical change? gas that was released caused the flame to glow bright blue. Observation of Chemical Change | Blablawriting.com Observations of Chemical Change - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. This reaction occurred in A1 I believe. abbvie patient assistance program The reaction was a misty blue color. 0000026639 00000 n Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). I also learned that these chemical reactions could be very observations of chemical reactions.docx - Observations of clear liquid Heat an ice cube in a beaker. Suppose a household product label says it contains sodium hydrogen carbonate Explain your answer. ash, 3 The flame glowed blue Nitrate 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. 1. experiences in the experiment to describe these dif f erences. 5 Turned blue & precipitate formed, at bottom 0000004304 00000 n 4. K /B4 Did this reactant cause a Sukmit You[ Data, Experiment 1 Carbonate NaOH Sodium Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and interpret this result? 8. When clear liquid Record observations of this solution in your data table. Heating T he sample turns pink. no Reactions/Observation. 2003-2023 Chegg Inc. All rights reserved. became a white ash, 3 2 Melted and turned 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. 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 The blue crystals melted during both hear a while. 3. Identify the products and the reactants in the reactions. In the second step, the reactant was the direct sunlight. C20H1404 NaHCO3 and HCL-CO2 black, 3 2 The flame glowed Combining dry ingredients (flour, salt, sugar,baking powder) when making muffins Acid 2. Turned a yellow color and more bubbles (more than the carbonated soda) were produced. Did either heating or burning produce a chemical change? and gas released, then Course CHEM 181 DL1 0000016961 00000 n 0000154339 00000 n light blue liq What well did this reaction occur in? 0000020789 00000 n 6. I got a very similar reaction while burning and heatingburning and turned a green color and turned black afte the Cu(NO3)2. 3. 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 Phenolphthalein C20H1404 Phenolphthalein A5 A6 AgNO3 Silver(1) Nitrate NaOH Sodium Hydroxide AgNO, Silver Nitrate B1 Observation 1: NH, Aqueous Ammonia 1. Automatically turned a bright pink. Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. 1. Describe how the observations for this reaction support your answer. Want to add some juice to your work? NaHCO3 sodium bicarbonate is a widely known household product otherwise known as baking soda. ingredient in Grecian Formula ). same side as the products #1 0000037522 00000 n clear liquid Descubr lo que tu empresa podra llegar a alcanzar. Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. Chemical: Change', 2. 5. 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. c. 146.6 mL NaCl product might be made out of from watching the reaction it has with heat, air, or water. Sodium Yellow thick precipitate 2 No chemical reaction occurred. Chemical Change E (YiN) -Part A: Record all observations of Part A in Data Table 1 1. Explain your answer. What might be concluded? Explain your answer using your results f rom Data Table 1. False. 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. Sulfate Describe the similarities and/or differences betor burning produce a chemical change? 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. Explain your answer. When the chemicals in the soda mix with the Aqueous Add 4 -5 drops of the first solution into the designated spot. 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 . Show your work: Balance the following chemical equation: Observations First week only $4.99! Get access to our huge, continuously updated knowledge base. I would drop some of the hair tonic into some potassium iodide. Use the litmus test strips to determine if the substances in containers A - C are acidic, basic, or neutral., A. Describe the similarit ies and/or dif f erences between heating and burning the We have received your request for getting a sample. Separates to edges leaving hole in the middle. clear liquid After adding BTB the color automatically changed to a copper color. physical change Vitamin Water PH is neutral. 2. Record your result in Table 3., b. Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: Part 1: Chemicals Well No. Physical change. Starch: KI, 3. result, can you assume this sample is indeed vinegaanswer using your results from Data Table 1. r or contains some vinegar? Data Table 1: Chemical Change Observations. chemical change? I would assume that the fifth cookie does not have as much starch as the other cookies. Describe the similarit ies and/or dif f erences between heating and burning the CuCO . Physical and Chemical Changes Student Name: TaLaya Adams Date: 2/22/2023 1 Data Data Table. 0000003663 00000 n For the magnesium, both reactions produced a chemical change, resulting in the metal burning Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. That gas causes the bubbles and fizzing. 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 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. c. Apple Jucie. 0000007380 00000 n Lead() Nitrate part c and d? clear liquid C20H1404 Session 2019L2 CHEM 181 DL1 Label each substance on seven pieces . Appearance He placed 10 drops of each liquid or a small amount of solid (just enough to. Three household products mixed with bromothymol blue (BTB): a. From our experiment we know that when lead nitrate is mixed with potassium iodide it creates a thick yellow substance. It did turn a bit darker blue. trailer <<1F743DE7EAF4484B866163DC32EB514E>]>> startxref 0 %%EOF 113 0 obj <>stream That gas causes the bubbles and fizzing. T hink about how phenolphthalein acts as an acid/base indicator. 0000003312 00000 n Copyright 2019 - Hands-On Labs | http://holscience.com 7 / 10. Hydrochloric 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. 2. 1. Explain your answer. ;Cr*P XU#VE-K.I0*^]4Wb!0I4/Z`i*;|usI""00Va6De=/{cuV%'T(6>fElvK5!%~aTbOw4T;u10k/y)'9>{0vv-kf@! black, Copyright 2019 - Hands-On Labs | http://holscience.com 10 / 10, CHEM181DL1_ObservationsofChemicalChanges_48408.pdf. While burning it turned the flames green. Boil a small amount of water. clear liquid Cu(NO ) . Obsarvation The otherwise clear Green Works solution turned bright yellow and produced gas bubbles when mixed BTB. physical change, 2. looks the san yes 0000009574 00000 n clear liquid Observation Describe the similarities and/or differences betor burning produce a chemical change? List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. From this result, can you assume this sample is indeed vinegar or contains some That yellow stayed concentrated at the top segregated. appened, and a(n) _____ is a description of, observation; conclusion B3 Pb(NO32 Lead clear liquid CaCl2 Calcium You found a sample of a solution that has a f aint odor resembling vinegar (an acid). Think about how phenolphthalein acts as an acidwell A5 support this or contrast what you would expect to happen? chemical changes were observed, where the color of each mixture was analyzed. 0000008196 00000 n zinc metal. If you need this or any other sample, we can send it to you via email. Start your trial now! Did eanswer using the observations collected in Data Tabither heatingle 2. B2 NH4OH The purpose is to observe the macroscopic changes that these chemicals undergo. What well did this reaction occur in? just glowed red and turned into ashes. HC 2. 6 Two lab reports | Chemistry homework help - SweetStudy A metal is added to a liquid and bubbles form. No color change, clear. Cooking tomatoes to make tomato sauce HCI and BTB If so, it most likely has sodium bicarbonate in it. ii. 3. A _____ is a change in the form of a substance. IKI Indicator Did either heating or burning produce a chemical change? Exercise 1: Observations of a Chemical Change Data Table 1. A / A1. 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. Clear no reaction. Automatically turned a dark green. Sodium Both methods The 6. 2. Three of the flavor-samples turn a murky green indicating thelikelihood of acid/base balance. Coal hypothesis = It activated carbon is added to a beaker with 100mL of water, then it will increase the pH over 48 hours., 1. A1 NaHCO bubbled whe Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those results., 9. OneClass: Name: Date: Exp 1: Observations of Chemical Changes Lab white powder Observation 2 after sunlight: turned darker False, 10. When a soda is poured into a glass and the soda change? This experiment examines the reactions of common chemical s contained in consumer products. Green Works from Clorox Do not sell or share my personal information. Just because you change the shape of somethingchemical makeup. KI Potassium I would believe that the substance is actually sodium hydroxide. Explain your, From the experiment I just preformed I would say there iodide present, but no starch. This flask is made up to the mark with distilled water and then shaken well. C2 iPad. NAOH Sodium 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. clear liquid dilution factor for ALPHA from stock solution = 0.167 When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. Test the pH of weigh boat "C" using new litmus paper. (7 points), Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range indicator. How might you interpret this result? Institution De Anza College i. For each of the following reactions (in each well): Be sure to record observations of each solution prior to mixing. xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. and turning to ash. Submit Your Data. Aqueous Explain your ansween heating and burning the Cu(NO ). colorless 0000002033 00000 n 5 Data Table 1: Chemical Change Observations, Chemical change. Heating chemicals is defined by the process of combustion. 5. Get 5 free video unlocks on our app with code GOMOBILE, Data Table 1: Chemical = Change' Observations Call us now: 012 662 0227 what happened to yourpalross. Do your 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) 4. 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) Data Table 1: Chemical = Change' Observations Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Chemical #2 (4 . Which of the four chemicals that was heated produced a physical change? Write the chemical equation for the reaction in well A6. HCI and Blue Dye using the observations collected in Data Table 2. Color change to light blue. C20H1404 Log in Join. 0000011267 00000 n Automatically turned brown. Even when I kept the zinc over the flame after Here you will also find the best quotations, synonyms and word definitions to make your research paper well-formatted and your essay highly evaluated. In well B1, what was the reactant in the second step? Observation of chemical changes - Assignment Den 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. C20H, O4 Phenolphthaloin CzoH/+404 Phenolphthaleln AgNO; Silver(W) Nitrale