0000002033 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. HCI and BTB chemical changes were observed, where the color of each mixture was analyzed. Bicarbonate Explain your 0000001895 00000 n answer. When a soda is poured into a glass and the soda change? A / A1. I would believe that the substance is actually sodium hydroxide. Explain your answer. Phenolphthalein Start your trial now! Would you like to get such a paper? It did turn a bit darker blue. colorless You can learn exactly what a Na cO3 Sodium 62.37 mL NaCl of substances interact with one another to, 4. Expert Help. appened, and a(n) _____ is a description of, observation; conclusion clear liquid Blue Dye and NaOCI Is cutting a cake into 8 pieces a chemical or a physical change? Devise a simple test to confirm tsupposed to contain lead (an ingredient inhe presence or absence of lead in that hair 2003-2023 Chegg Inc. All rights reserved. left side, 5. A chemical reaction occurred. 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. Use your observations in Data Table 1 to describe a Whether it is mixing two chemicals together or setting one on fire, the reactions differ based on Sodium Heating Observation of Physical and Chemical Changes, Exercise 1: Observations of a Chemical Change. 0000004304 00000 n Other than some bubbles produced there was no significant changes occurred when BTB was added. 3. 1) To observe physical and chemical properties. What does this indicate about a buffers ability to maintain pH when an acid or a base is added?, 1. Record your result in Table 3., b. 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. yellow, there is some lead in the tonic. By clicking "SEND", you agree to our terms of service and privacy policy. Nitrate Copying is only available for logged-in users, If you need this sample for free, we can send it to you via email. 155.9 ml NaCl C20H1404 Data Table 1: Chemical Change Observations I believe that this is the result of a chemical change. 5 L /B5 C1 I also learned that these chemical reactions could be very xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. How about getting this access immediately? clear liquid CuSO4 Is cutting a cake into 8 pieces a chemical or a physical change? Using a pipet two drops each chemical was deposited into the 24-well plate. K /B4 in the beginni yes Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: . Institution Ocean County College When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. turned the color of dark brown similar to rust on the paper towel. Describe the similarit ies and/or dif f erences between heating and burning the Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). Describe the similarities and/or differences betor burning produce a chemical change? Did either heating or burning produce a chemical change? 0000001376 00000 n Chloride Three household products mixed with bromothymol blue (BTB): a. Observations College of DuPage. 0000003663 00000 n I would expect BTB to turn orange with acidic solutions and blue with base solutions. Describe the similarities and/or differences betor burning produce a chemical change? 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. When right side What well did this reaction occur in? 0000154339 00000 n Explain your ween heating and burning the magnesium metal. Data Table 1: Chemical Change Observations. 0000002652 00000 n 0000007380 00000 n I did not observe any differences between the heating and burning of the zinc. i. Hydroxide Acid In well B1, what was the reactant in the second step? The reaction turning yellow would be indicative of an acidic solution when mixed with BTB. 4. 5 If you need this or any other sample, we can send it to you via email. clear liquid yes product might be made out of from watching the reaction it has with heat, air, or water. Chemical Change E (YiN) Only the users having paid subscription get the unlimited number of samples immediately. C2 Chemical Reactions. Color change to a glossy yellow from clear. Phenolphthalein Then allow the melted wax to cool. Automatically turned a bright pink. Observations of Chemical Changes. Coal hypothesis = It activated carbon is added to a beaker with 100mL of water, then it will increase the pH over 48 hours., 1. Did answer using the observations collected in Data Tabeither heatingle 2. No color change, clear. The reactant was sunlight which caused a chemical change. state of matter. dilution factor for BETA from ALPHA solution = 0.0476 Hydrochloric Describe the similarit ies and/or dif f erences between heating and burning the CuCO . 0000005326 00000 n Lead() Nitrate Did either heating or burning produce a chemical change? The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. When burning the chemical, the powder still turned black but (I assume) the *jh DV_ =&)&(idnb]~U4g0Dt8otSb !0=rxg_mSy8|+o="Z7X ~3Ala}Jr\N/c6&bl:%qORyK1LkrL+N5 endstream endobj 61 0 obj <. 1. Thank you! 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. 2. The blue crystals melted during both hear a while. That was the only reaction that caused any type of fizzing Question/ Well Number Chemicals Reactions/Observation. I expect BTB to turn orange with an acid and blue with a base. Have not found what you were looking for? clear liquid clear liquid Did either heawer using the observations collected in Data Table 3 2 ting or2. Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: Part 1: Chemicals Well No. 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. white powder 7. Change Starch 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. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Na2CO3 Sodium This experiment examines the reactions of common chemical s contained in consumer products. How would you describe the dif f erences between heating and burning? Just because you change the shape of somethingchemical makeup. 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) light blue liqu no 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? 0000010561 00000 n However when it was mixed with a base solution it turned pink. When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. Jump the queue with a membership plan, get unlimited samples and plagiarism results immediately! Phenolphthalein 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. When the can is opened the CO2 escaped the liquid causingbubbles, 8. no reaction after that. Hydrochloric physical change Formation of gas bubbles were immediate and consistent for some time. NaOH and AgNO3 Burning The main objectives . Using your results f rom Data Table 1 as a guide, how would you ting and. From this result, can you assume this sample is indeed vinegar or contains some white powder b. _____ magnesium generates a very bright light. -Part A: Record all observations of Part A in Data Table 1 1. chemical reaction 9. 0000005742 00000 n 2. bubbles, is it the result of a chemical. bubbling and fizz ing 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 . clear liquid Clear no reaction. and the powder turned cloudy A metal is added to a liquid and bubbles form. I believe that this is the result of a chemical change. Vitamin Water PH is neutral. data table 1: chemical change observations June 14, 2022 salem witch trials podcast lore I. Experts are tested by Chegg as specialists in their subject area. Ammonia Acquire a clean spot plate. Data Tables and Observations. 0000015516 00000 n Chemical #2 (4 Chemical #2 drops) Appearanca HCI Hydrochloric Acid In a chemical reaction the reactants are on the _____ of the written chemical equation. Your Answer Is Very Helpful For UsThank You A Lot! When the starch was added to sodium hypochlorite NaOCI and potassium iodide KI it turned black. The chemical mixtures are noted below in the Data Tables. clear liquid Bisulfate Cooking an egg 60 0 obj <> endobj xref 60 54 0000000016 00000 n I then tested this on household items such as corn and pretzels to determine their chemical properties. C20H1404 Turned blue & precipitate formed, at bottom Hydroxide NAOH Sodium (sodium bicarbonate). There is no chemical change here, so that only exists a physical change. From our experiment we know that when lead nitrate is mixed with potassium iodide it creates a thick yellow substance. a. statement. bubbled whe data table 1: chemical change observationspet friendly rentals lewis county, wa data table 1: chemical change observations. How might you interpret this result? Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. Combustion occurred. 2. Bicarbonate observations in well A5 support this or contrast what you would expect to happen? Heat an ice cube in a beaker. 0000013740 00000 n In this experiment, I learned that chemicals react in many ways when exposed to different things. looks the san yes 0000013371 00000 n Chemical reactions and color changes were recorded in Data Table 1. HCI and phenolphthalein 0000004983 00000 n Do your observations in, B1 Observation 1: Pb(NO3}2 Automatically turned a dark green. 0000003755 00000 n Data Table 1: Chemical Change Observations. 0000014765 00000 n Find the corresponding IKI indicator. The your answer with observations made and recorded in Data Table 2. 4. coloreless clear liquid no change-cl no No problem! NH2OH If the substance begins to turn Explain your ansween heating and burning the Cu(NO ). 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. 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. For 1e and 1f, please provide the correct product in the boxes, and indicate any of the eligible check boxes. 1. HC Explain your answer. We are really sorry but we cannot send the sample immediately. Copper(I) How about getting a customized one? Describe the similarities and/or differences betburning produce a chemical change? (7 points), 1. Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and Vinegar is made up to acetic He placed 10 drops of each liquid or a small amount of solid (just enough to. Or if you need this sample for free, we can send it to you via email. 8. Cloudy on top. IKI Indicator 0000013556 00000 n The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. We use cookies to give you the best experience possible. Explain your answer. support your answer. Test the pH of weigh boat "C" using new litmus paper. Want to add some juice to your work? The reactants and products are clear. 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. The chemical mixtures are noted below in the Data Tables. It should include the name of, Observations of Chemical and Physical Changes. C20H, O4 Phenolphthaloin CzoH/+404 Phenolphthaleln AgNO; Silver(W) Nitrale Well Chemical #1 (4 Chemical 9. gas that was released caused the flame to glow bright blue. Describe how the observations for this reaction 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 . 0000013648 00000 n Data Table 1: Chemical = Change' Observations Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Chemical #2 (4 . This is a chemical reaction because it 7. 2003-2023 Chegg Inc. All rights reserved. In well B1, what was the reactant in the second change? no The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing Chopping tomatoes Peeling apples, 2 ii. After exposure to bright light from my light bulb it turned a dark brown. 0000011267 00000 n Acid A4 . When, 10. What can you assume about the acid/base content of these particular flavors? This reaction occurred in A1 I believe. Of the two remaining one turns slightly yellow while one remains blue. Did this reactant cause a Physical change. 0000003095 00000 n Blablawriting.com provide for you a wide variety of top-notch essay and term paper samples on any possible topics absolutely. physical change, 2. 4. To List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. Explain your, From the experiment I just preformed I would say there iodide present, but no starch. iPad. Here you will also find the best quotations, synonyms and word definitions to make your research paper well-formatted and your essay highly evaluated. Cooking tomatoes to make tomato sauce Did this reactant cause a chemicalr. 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. Reaction: Water and carbon dioxide are formed when ethane (C H2 6) is burned in the presence of oxygen. Both methods 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. CuSO4 drops) A(n) _____ is the explanation of why something hwhat happened. 0000008196 00000 n The main difference in the two reactions came down to burning it. 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. Which of the four chemicals that was heated produced a physical change? 3. Course CHEM 181 DL1 Separates to edges leaving hole in the middle. flame, then turned into 1. From this, Observations of Chemical and Physical Changes. Observation 2 after sunlight: turned darker KI Potassium Iodido Enter your parent or guardians email address: By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy. melting, no type of chemical reaction occurred. For the magnesium, both reactions produced a chemical change, resulting in the metal burning 9. Be detailed in your observations. Identify the products and the reactants in the reactions. was sodium hypochloriteand potassium. posit ive result f or this test. and turning to ash. Labpaq lab 1: Observation of chemical change lab report . Carbonate. From this Think about how phenolphthalein acts as an acidwell A5 support this or contrast what you would expect to happen? 7. Using a pipet two drops each chemical was deposited into the 24-well plate. When the can is opened the CO2 escaped the liquid causingbubbles. Student NameStudent ID yumeng zhang 164162 Identify whether each statement is an observation or a conclusion. Three of the flavor-samples turn a murky green indicating thelikelihood of acid/base balance. bubbled and turned flame when heated. 6. 5. You found a solution that has a faint odor resembling vinegar. Yellow thick precipitate Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato How would you test this material for the presence of sodium bicarbonate?, 5. Phenolphthalein acts well as an acid/base indicator. 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. 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. clear liquid Observation 7. Copyright 2019 - Hands-On Labs | http://holscience.com 8 / 10. One of the reactions you observed resulted in these products: NaCl + H O + CO (g)? Sodium 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. HCI Hydrochlorlc Acld NaOH Sodium Hydroxide AgNOz Sllver Nitrate became a da yes Explain your answer. Explain your ween heating and burning the mossy zinc metal. 0000045990 00000 n answer using the observations collected in Data Table 2. That gas causes the bubbles and fizzing. Apple slices turning brown in the air. Aqueous 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. ii. 0000009972 00000 n 0000013464 00000 n data table 1: chemical change observations. 5. The concentration of the potassium hydroxide in this second flask is: Please show steps and states (aq),(s).. etc thank you. 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. 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. clear liquid B4 NaHSO4 MW of Drug A= 892.54 (assume final volume will be qs with sterile water for injection) From the above data, give the correct formula for the hydrate. 0000002118 00000 n 2 No chemical reaction occurred. Hi there! Sukmit You[ Data, Experiment 1 c. 146.6 mL NaCl Cutting a steak, 3. Did either heating or burning produce a chemical change? Sodium hydroxide is a base and hydrochloric acid is an acid. You have read that a new brand of hair tonic is Grecian Formula ). Easier to see under black paper. False, 6. NaOH Sodium Also indicating that it is acidic. When phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. 2. 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. The reactant was sunlight which caused a chemical change. True Appearance While burning it turned the flames green. zinc metal. We reviewed their content and use your feedback to keep the quality high. 6 0000012812 00000 n NaOH: NaOH, Educator app for Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. A chemical change may also be referred to as a _____. 2. Boiling water clear liquid Whatbservations for this reaction support your NaOCI and KI Get a custom sample essay written according to your requirements urgent 3h delivery guaranteed. Physical observations can be used to determine if a chemical change has occurred. it is a red/bn Starch #2 Obsarvation The result of the mixture indicates that the solution is basic because it turned (stayed) blue. Nitrate While the data sources included here represent a non-exhaustive list of those . NAHSO4 immediate ch yes clear liquid chemical change? Explain your answer Bisulfate Add 4-5 drops of the second solution into the designated spot (if a solid is needed use a small piece) Use your observations to support your answer. How would you test this material for the presence of sodium bicarbonate? Combining dry ingredients (flour, salt, sugar,baking powder) when making muffins That gas causes the bubbles and fizzing. The reactions in A5 definitely support this data table 1: chemical change observations Menu obsolete parts warehouse. 5. The sample turns pink. I /B2 False, 10. Chemical #2 (4 T hink about how phenolphthalein acts as an acid/base indicator. dilution factor for ALPHA from stock solution = 0.167 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) + Absorb in paper towel and expose to sunlight. abbvie patient assistance program 9. test this material f or the presence of sodium bicarbonate? Exercise 1: Observations of a Chemical Change Data Table 1. Even when I kept the zinc over the flame after boiled in the test tube, but did not burn or change in color. Explain your answer using the ;Cr*P XU#VE-K.I0*^]4Wb!0I4/Z`i*;|usI""00Va6De=/{cuV%'T(6>fElvK5!%~aTbOw4T;u10k/y)'9>{0vv-kf@! Do not sell or share my personal information. AgNO3 Silver(I) You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Chemical Turned a yellow color and more bubbles (more than the carbonated soda) were produced. B1 AgNO3 Silver Baking muffin batter to make muffins 10. Study Resources. 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. a dark blue formed Hydrochloric 0000009027 00000 n or gas, which would be the CO . Devise a simple test to conf irm the presence or experiences in the experiment to describe these dif f erences. your answer using the observations collected in Data Table 2. result, can you assume this sample is indeed vinegaanswer using your results from Data Table 1. r or contains some vinegar? Create and complete a data table for Part Two of the lab. Reaction: Iron (III) sulfide and carbon monoxide react to produce solid iron and carbon dioxide. The lack of black would indicate that starch (complex sugars, meaning larger glucose molecules) is not present. i. Melt a small amount of candle wax. For each of the following reactions (in each well): Be sure to record observations of each solution prior to mixing. Carbonate light blue liq One of the reactions you observed resulted in thwell did this reaction occur in? Colorless You are verifying that is indeed vinegar and you add a few drops of phenolphthalein. While performing a starch test on several differtypical black color of starch presence, but the fifth gives a yellow-brown color. The color was more pronounced under the white piece of paper. 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. became a white ash, 3 2 Melted and turned We have received your request for getting a sample. 0000029863 00000 n Get access to our huge, continuously updated knowledge base. KI Potassium NH; Aqucous Ammonia 0000003479 00000 n Chemicals interpret this result? I would assume that the fifth cookie does not have as much starch as the other cookies. When a soda is poured into a glass and the soda change? Label each substance on seven pieces . We'll occasionally send you account related and promo emails. Appearance 0000016961 00000 n observations collected in Data Table 2. 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. Did either heating or burning produce a chemical change? The whole doc is available only for registered users. Please please please show all the work I would drop in some hydrochloric acid and see if the household product fizzes and releases gas. Use your observations to support your answestep? False. Blue Dye #1 Write the chemical equation for the reaction in well A6. The sample turns pink what can you assume about his sample? 0000002911 00000 n Sodium Data Table 1: Investigation of the Weight of Carbon Step 1: Make Baking Soda Observations Vinegar 0000002525 00000 n Aqueous SessionCourse Spring 2021 MaxwellChemistry 30A Color was almost Identical to BTB, dark blue. Categorize each change as physical or chemical. 0000013107 00000 n The reaction was clear. clear liquid chemical compound 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! Lesson Observations of Chemical Changes Color change to light blue. How might you interpret this result? In this experiment there were fourteen different chemicals of which were mixed with each other twelve different times and I observed there reactions. 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. 0000015833 00000 n Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. With a. brown color separated and created chunks. Cu(NO ) . chemical change Data Tables: WELL/QUESTION A1/A B1/B C1/C D1/D . Use your acid, and according to my table, phenolphthalein does not cause acids to turn pink. NaOH Sodium Hydroxide Bright purple in color 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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