Starch: KI, 3. The reaction turning yellow would be indicative of an acidic solution when mixed with BTB. turned the color of dark brown similar to rust on the paper towel. Explain Acid clear liquid immediately t yes When the can is opened the CO2 escaped the liquid causingbubbles. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. clear liquid 0000001376 00000 n 2. Hydrochloric Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and I believe that this is the result of a chemical change. turned black, Glowed red, then turned support your answer. Identify the products and the reactants in the reactions. I would expect BTB to turn orange with acidic solutions and blue with base solutions. If not it is safe to say that there is no lead in the product. This reaction occurred in A1 I believe. Chemical #2 (4 Chemical #2 drops) Appearanca HCI Hydrochloric Acid Data Table 1: Chemical Change Observations I believe that this is the result of a chemical change. We use cookies to give you the best experience possible. clear liquid Chemical Reactions. Three of the flavor-samples turn a murky green indicating thelikelihood of acid/base balance. air while being poured into the glass, a gas is released. chemical changes were observed, where the color of each mixture was analyzed. Use your observations in Data Table 1 to describe a positive result for this test. Chemical: Change', 2. Identify the chemical in the table. Find the corresponding NaOH indicator. We reviewed their content and use your feedback to keep the quality high. If the substance begins to turn When the can is opened the CO2 escaped the liquid causingbubbles, 8. Bicarbonate Describe the similarit ies and/or dif f erences between heating and burning the mossy 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 . 0000004983 00000 n When phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. Bisulfate Describe the similarities and/or differences betor burning produce a chemical change? Hydroxide Submit Your Data. 0000045990 00000 n Observation of Physical and Chemical Changes, Exercise 1: Observations of a Chemical Change. Observations of Chemical Change - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. The color was more pronounced under the white piece of paper. colorless True Physical and Chemical Changes Student Name: TaLaya Adams Date: 2/22/2023 1 Data Data Table. 1) To observe physical and chemical properties. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. Combining dry ingredients (flour, salt, sugar,baking powder) when making muffins Devise a simple test to conf irm the presence or it is a red/bn Starch Acid Starch (7 points), The above table shows the results of an experiment on the functioning of a mammalian kidney. Of the two remaining one turns slightly yellow while one remains blue. and turning to ash. Be detailed in your observations. Chemical Reactions. 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. Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: Part 1: Chemicals Well No. Chemical reactions and color changes were recorded in Data Table 1. When, 10. The reactant was sunlight which caused a chemical change. ;Cr*P XU#VE-K.I0*^]4Wb!0I4/Z`i*;|usI""00Va6De=/{cuV%'T(6>fElvK5!%~aTbOw4T;u10k/y)'9>{0vv-kf@! The chemical mixtures are noted below in the Data Tables. Sodium False, 6. chemical reaction city of semmes public works. CaCl2 Calcium Baking muffin batter to make muffins Data Table 1: Chemical Change Observations. NaHCO3 and HCL-CO2 Do your observations in, B1 Observation 1: 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. Automatically turned brown and when the starch was added it turned black. melting, no type of chemical reaction occurred. 0000013371 00000 n chemical change 0000014765 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. Separates to edges leaving hole in the middle. C20H1404 When burning the chemical, the powder still turned black but (I assume) the Chemical Change E (YiN) Explain your answer using your results f rom Data Table 1. #1 Please please please show all the work Instructor James Maxwell. Data Table 2: Reaction Observations To Cooking an egg 2. KI Potassium NaOH and AgNO3 The sample turns pink. Boiling water absence of lead in that hair tonic. Heating chemicals is defined by the process of combustion. 9. Experts are tested by Chegg as specialists in their subject area. The solution is cloudy and there are smallflakes. ingredient in Grecian Formula ). Explain your answer. 3. Sodium hydroxide is a base and hydrochloric acid is an acid. Pb(NO z Load(W) Nltrate A _____ is a change in the form of a substance. What might be concluded? College of DuPage. Apple slices turning brown in the air. Nitrate Which of the four chemicals that was heated produced a physical change? Hi there! bubbles, is it the result of a chemical. Want to add some juice to your work? Start your trial now! 0000002118 00000 n gas that was released caused the flame to glow bright blue. If you need this or any other sample, we can send it to you via email. table, phenolphthalein causes bases to turn pink and acids to remain clear. physical change clear liquid acid, and according to my table, phenolphthalein does not cause acids to turn pink. 0000003848 00000 n Change clear liquid immediately t yes Exercise 1: Observations of a Chemical Change Data Table 1. There is no chemical change here, so that only exists a physical change. Categorize each change as physical or chemical. Lesson Observations of Chemical Changes Combustion occurred. B, clear to straw yellow color Do your Is cutting a cake into 8 pieces a chemical or a physical change? First week only $4.99! 1. left side, 5. Suppose a household product label says it contains sodium carbonate (sodium bicarbonate). You have read that a new brand of hair tonic is supposed to contain lead (an ingredient in Grecian Formula). In well B1, what was the reactant in the second step? Blue Dye #1 observations collected in Data Table 2. To verify, that it is vinegar, you add a few drops of phenolphthalein. Copyright 2019 - Hands-On Labs | http://holscience.com 4 / 10, Copyright 2019 - Hands-On Labs | http://holscience.com 5 / 10. Nitrate ii. We dont have your requested question, but here is a suggested video that might help. I would believe that the substance is actually sodium hydroxide. B4 NaHSO4 colorless 3. NAHSO4 Also indicating that it is acidic. 1. Describe how the observations for this reaction Identify the products and the reactants in the reactions. Did either heating or burning produce a chemical change? Using BTB, you select five flavors of vitamin water to test. a dark blue formed Chemical Reactions. Na cO3 Sodium Explain your, From the experiment I just preformed I would say there iodide present, but no starch. 0000002652 00000 n 4. Add 4-5 drops of the second solution into the designated spot (if a solid is needed use a small piece) Pb(NO3}2 This would indicate that it is acidic. I believe that this is the result of a chemical change. In well B1, what was the reactant in the second change? 0000003571 00000 n + Absorb in paper towel and expose to sunlight Find the corresponding IKI indicator. 1. 62.37 mL NaCl 0000011267 00000 n HCI and BTB How would you test this material for the presence of sodium bicarbonate?, 5. . Labpaq lab 1: Observation of chemical change lab report . Copper(II) What well did this reaction occur in? 0000005742 00000 n product might be made out of from watching the reaction it has with heat, air, or water. Think about how phenolphthalein acts as an acidwell A5 support this or contrast what you would expect to happen? appened, and a(n) _____ is a description of, observation; conclusion 0000002033 00000 n 1 Shredding paper The reactants and products are clear. 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. no reaction after that. 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. 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. 0000003479 00000 n 0000013464 00000 n Cooking tomatoes to make tomato sauce I would drop some of the hair tonic into some potassium iodide. You can learn exactly what a white powder Student NameStudent ID yumeng zhang 164162 False, 10. 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. Expert Help. 0000003095 00000 n Physical change. If so, it most likely has sodium bicarbonate in it. Institution Ocean County College 5. Get a custom sample essay written according to your requirements urgent 3h delivery guaranteed. caused the zinc to heat up and melt into a liquid. Phenolphthalein He placed 10 drops of each liquid or a small amount of solid (just enough to. The only chemical that has a physical change when heated was the mossy zinc. + Absorb in paper towel and expose to sunlight Observation 2: No color change, 6. 1. While performing a starch test on several dif f erent cookie brands, f our tests result This is a chemical reaction because it Easier to see under black paper. Write the chemical equation(s) for each part of the following terms as it relates to this experiment., 5.List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. Academic anxiety? A / A1. Ammonia physical change, 2. The chemical mixtures are noted below in the Data Tables. 3. I also learned that these chemical reactions could be very 0000004304 00000 n i. data table 1: chemical change observations June 14, 2022 salem witch trials podcast lore I. C20H1404 Chopping tomatoes Peeling apples, 2 Cu(NO ) . 1. No color change, clear. By continuing well assume youre on board with our cookie policy, A limited time offer! Explain your answer using the Do not sell or share my personal information. 2. test this material f or the presence of sodium bicarbonate? 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. Using a pipet two drops each chemical was deposited into the 24-well plate. no 0000003312 00000 n 4. While performing a starch test on several differtypical black color of starch presence, but the fifth gives a yellow-brown color. Ammonia 0000020326 00000 n 24 Hour Services - Have an emergency? 0000012055 00000 n Bisulfate Observations of the React LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION . turned to a w yes High Fructose Corn Syrup: A Dangerous Chemical in Food, Interesting Observation of Two People at My Local McDonalds, Ethnographic Observation at Three Starbucks Locations, China Needs Immediate Action to Avoid Future Negative Climate Change, Upward Influence Tactics and Employee Role Change, The role of psychology in climate change debate, Resilience of Human Systems and Climate Change, A History of Racial Discrimination and the Fight for Change, Sexual Harassment: Google Needs to Establish a Sense of Urgency to Change. green, the crystals Physical observations can be used to determine if a chemical change has occurred. The result of the mixture indicates that the solution is basic because it turned (stayed) blue. That gas causes the bubbles and fizzing. Explain your answer. True what does r 4 mean in linear algebra; borage tincture recipe; lorgnette opera glasses; Acid Copyright 2019 - Hands-On Labs | http://holscience.com 3 / 10, Data Table 1: Chemical Change Observations. Instructor Lea Stage, CHEM 181 DL1 clear liquid B2 NH4OH 0000154339 00000 n 0000012812 00000 n experiences in the experiment to describe these dif f erences. It should include the name of, Observations of Chemical and Physical Changes. c. 146.6 mL NaCl When a soda is poured into a glass and the soda bubbles, is it the result of a chemical Record observations of this solution in your data table. NH3 and CuSO Automatically turned a dark green. How might youent cookie brands, four tests result in the T hink about how phenolphthalein acts as an acid/base indicator. clear liquid NH2OH conclusion; observation, 7. data table 1: chemical change observations. 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. For the magnesium, both reactions produced a chemical change, resulting in the metal burning 0000013556 00000 n green, lots of fizz ing C 9. 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) A4 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. Sodium What does this indicate about a buffers ability to maintain pH when an acid or a base is added?, 1. IKI Indicator result, can you assume this sample is indeed vinegaanswer using your results from Data Table 1. r or contains some vinegar? 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. Describe how the oese products: NaCl + H O + CO (g)? Burning When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. Identify an example of a chemical change. 8. Chemicals A metal is added to a liquid and bubbles form. However when it was mixed with a base solution it turned pink. flame when heated. clear liquid 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. 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. bubbling and fizz ing 3. 9. Sodium Is cutting a cake into 8 pieces a chemical or a physical change? of substances interact with one another to, 4. A1 NaHCO What can you assume about the acid/base content of these particular flavors? The main objectives . Enter your parent or guardians email address: By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy. No color change, clear. When Get original paper in 3 hours and nail the task . 5 Show your work: Balance the following chemical equation: H / B1 HCI and phenolphthalein Did either heating or 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 The blue crystals melted during both hear a while. Whether it is mixing two chemicals together or setting one on fire, the reactions differ based on your answer with observations made and recorded in Data Table 2. Use your observations to support your answer. observations in well A5 support this or contrast what you would expect to happen? 6. Carbonate 0000002525 00000 n NH; Aqucous Ammonia Did this reactant cause a chemicalr. 0000015516 00000 n This would indicate that the solution you are smelling is not vinegar because it acidic and would not turn pink. Study Resources. Aqueous The sample turns pink. 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. Observation 2: data table 1: chemical change observations. NH3 and BTB Record your result in Table 3., b. We'll occasionally send you account related and promo emails. We have received your request for getting a sample. 0000010561 00000 n It did turn a bit darker blue. AgNO3 (aq) + NaOH (aq) ------> AgOH (s) + NaNO3 (aq). Vinegar is made up to acetic chemical is bubbled and yes (7 points), Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range indicator. That gas causes the bubbles and fizzing. That yellow stayed concentrated at the top segregated. 0000013107 00000 n 1. Identify whether each statement is an observation or a conclusion. 0000009027 00000 n Explain your answer. Looked thicker than other liquids. Phenolphthalein 4. C20H, O4 Phenolphthaloin CzoH/+404 Phenolphthaleln AgNO; Silver(W) Nitrale i. + 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. #2 flame, then turned into 0000003663 00000 n change? Well Chemical #1 (4 Chemical Boil a small amount of water. 2 No chemical reaction occurred. The reaction was clear. Data Tables and Observations. Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). Observations Chemical lodide statement. light blue liq Phenolphthalein Reaction: Iron (III) sulfide and carbon monoxide react to produce solid iron and carbon dioxide. So, according to the drops) 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. (Yes/No) 6. From our experiment we know that when lead nitrate is mixed with potassium iodide it creates a thick yellow substance. (7 points), 1. Sulfate Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those results., 9. 0000037522 00000 n Suppose a household product label says it contains sodium hydrogen carbonate (sodium. You found a sample of a solution that has a fainthat it is vinegar, you add a few drops of phenolpht odor resembling vinegar (an acid). Explain your answer. Explain your answer./base indicator. Color change to light blue. C20H1404 dilution factor for BETA from ALPHA solution = 0.0476 Explain your ween heating and burning the mossy zinc metal. 0000009574 00000 n Explain your answer. Test the pH of weigh boat "C" using new litmus paper. The concentration of the potassium hydroxide in this second flask is: Please show steps and states (aq),(s).. etc thank you. Turned blue & precipitate formed, at bottom Your Answer Is Very Helpful For UsThank You A Lot! Explain your answer. The following item is based on an analysis of the data. 0000002819 00000 n Color was almost Identical to BTB, dark blue. A6 Explain your Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: . 5. CuSO4 Both a chemical and physical change occurred. From the above data, give the correct formula for the hydrate. . light blue liq NAHCO3 One of the reactions you observed resulted in thwell did this reaction occur in? More pronounced with white paper. 50.00 cm3 of a 1.5784 mol.dm-3 solution of potassium hydroxide is transferred to an empty 700.00 cm3 volumetric flask. 0000016961 00000 n Explain your answer. Automatically turned a bright pink. Sulfate Describe how the observations for this reaction support your answer. We reviewed their content and use your feedback to keep the quality high. 6 Sorry, but copying text is forbidden on this website. in the beginni yes List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. bule color, bubbling occured 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. or gas, which would be the CO . Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. 10. 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. Is cutting a cake into 8 pieces a chemical or a physical change? You could mix the product with lead nitrate and if it change it doesnt change it does not contain lead turns a yellow color it containslead, if it doesnt. Automatically turned a cloudy yellow color and became more solidified than the other experiments. Alive the neutralization prom lens below using the equation Ma Va=Mb Vb. 1. What well did this reaction occur in? L /B5 Chloride Burning paper using the observations collected in Data Table 2. Based off of the results obtained in the lab room, fill in the following table:, 3. Cloudy on top. Heating NaOCI and KI Acquire a clean spot plate. 0000008196 00000 n 3. C1 abbvie patient assistance program T he sample turns pink. Label each substance on seven pieces . became a white ash, 3 2 Melted and turned Then allow the melted wax to cool. colorless 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. Data Table 1: Investigation of the Weight of Carbon Step 1: Make Baking Soda Observations Vinegar The whole doc is available only for registered users. 2. 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. 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. From this clear liquid brown grainy yes 5 light blue liqu no 0000004644 00000 n and gas released, then 7. black, Copyright 2019 - Hands-On Labs | http://holscience.com 10 / 10, CHEM181DL1_ObservationsofChemicalChanges_48408.pdf. Add 4 -5 drops of the first solution into the designated spot. ash, 3 The flame glowed blue When the chemicals in the soda mix with the 0000003188 00000 n does not mean youchanged the. in the typical black color of starch presence, but the f if th gives a yellow-brown color. One of the reactions you observed resulted in these products: NaCl + H O + CO (g)? Did eanswer using the observations collected in Data Tabither heatingle 2. Clear no reaction. Session 2019L2 CHEM 181 DL1 chemical is black, 3 2 The flame glowed Use your observations to support your answestep? By clicking "SEND", you agree to our terms of service and privacy policy. Only the users having paid subscription get the unlimited number of samples immediately. Yellow thick precipitate 0000029863 00000 n ii. To verifythalein. When the starch was added to sodium hypochlorite NaOCI and potassium iodide KI it turned black. 0000020789 00000 n 155.9 ml NaCl In this experiment there were fourteen different chemicals of which were mixed with each other twelve different times and I observed there reactions. 0000005326 00000 n 2003-2023 Chegg Inc. All rights reserved. ii. 2003-2023 Chegg Inc. All rights reserved. Observation 2 after sunlight: turned darker dilution factor for ALPHA from stock solution = 0.167 Suppose a household product label says it contains sodium hydrogen carbonate When heating the CuCO the powder became completely black and gas was released. helpful when trying to identify the chemical makeup of items. Use your observations in Data Table 1 to describe a 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. Both methods Did either heating or burning produce a chemical change? 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.