I would assume that the fifth cookie does not have as much starch as the other cookies. 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. Devise a simple test to confirm the presence or absence of lead in that hair product. That was the only reaction that caused any type of fizzing 1. The main objectives . No color change, clear. clear liquid Observation Automatically turned brown and when the starch was added it turned black. Data Table 1: Chemical = Change' Observations Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Chemical #2 (4 . 155.9 ml NaCl 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. 0000004304 00000 n Bisulfate Copyright 2019 - Hands-On Labs | http://holscience.com 7 / 10. The whole doc is available only for registered users. 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. NaOH and phenolphthalein Baking muffin batter to make muffins Even when I kept the zinc over the flame after #1 Explain your ween heating and burning the magnesium metal. Show your work: Balance the following chemical equation: left side, 5. NaOH: NaOH, Educator app for chemical reaction Hydrochloric That gas causes the bubbles and fizzing. J /B3 . Combining dry ingredients (flour, salt, sugar,baking powder) when making muffins A metal is added to a liquid and bubbles form. 3. Did either heating or burning produce a chemical change? Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). Lead() Nitrate pollard funeral home okc. Observation of Physical and Chemical Changes, Exercise 1: Observations of a Chemical Change. Observation of Phy & Chem Observations (FINAL), CHEMP106_GOBObservationsofChemicalChanges_150205 (1).pdf, CHM131_309_ObservationsofChemicalChanges_94772.pdf, HOL Observations of Chem Changes Exercise 1.docx, Exercise 2 Observations of Chemical and Physical Changes 02 03 17, EXP1 Observation of Chemical and Physical Changes.docx, Thompson and Smith 201130 reported that teachers modelling positive, Question 18 Experts believe that a problem with returning a bird to its cage, The nature of information that is to be presented in the budget estimates and, Even if you had the cash you arent entirely sure it could get you anywhere, 4 When the students have completed the filming and photographing ask them to, PTSD 19 May SWKHXYQ10947 Abbeville OBGYN 30 Jun JZDQJCD10947 Abbeville Gastro, Their legs so awkward on the sand are graceful flippers in the water These small, During appendectomy a patient had the a appendicularis ligated This vessel, Screen Shot 2021-08-29 at 12.13.15 AM.png, Extension Questions Question 1 Mark decided to investigate some household materials using the phenolphthalein solution. Describe the similarit ies and/or dif f erences between heating and burning the Chemical Chemical #2 (4 Chemical #2 drops) Appearanca HCI Hydrochloric Acid This would indicate that it is acidic. How might you interpret this result? 0000001895 00000 n i. Add 4 -5 drops of the first solution into the designated spot. of substances interact with one another to, 4. B3 Pb(NO32 Lead clear liquid CaCl2 Calcium Separates to edges leaving hole in the middle. NAHSO4 Course Hero is not sponsored or endorsed by any college or university. 0000023384 00000 n 4. To verifythalein. Explain your answer. The main difference in the two reactions came down to burning it. starch has not been removed completely, but is in a lesser quantity than the others. Combustion occurred. 0000156016 00000 n CuSO4 HC That gas causes the bubbles and fizzing. appened, and a(n) _____ is a description of, observation; conclusion HCI and BTB Describe the similarities and/or differences betburning produce a chemical change? A chemical change may also be referred to as a _____. A4 green, the crystals Sodium Burning paper 0000013556 00000 n Use your observations in Data Table 1 to describe a positive result for this test. We'll occasionally send you account related and promo emails. How would you test this material for the presence of sodium bicarbonate?, 5. Ammonia From this verif y that it is vinegar, you add a few drops of phenolphthalein. How about getting a customized one? Describe the similarit ies and/or dif f erences between heating and burning the Chemical Reactions. You are verifying that is indeed vinegar and you add a few drops of phenolphthalein. Use your observations to support your answer. You have read that a new brand of hair tonic is supposed to contain lead (an a. Na cO3 Sodium Turned a yellow color and more bubbles (more than the carbonated soda) were produced. B2 NH4OH Looked thicker than other liquids. Identify the chemical in the table. 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. lodide A6 and turning to ash. Copyright 2019 - Hands-On Labs | http://holscience.com 3 / 10, Data Table 1: Chemical Change Observations. Study Resources. Both a chemical and physical change occurred. coloreless Get original paper in 3 hours and nail the task . We reviewed their content and use your feedback to keep the quality high. dilution factor for BETA from ALPHA solution = 0.0476 Hi there! 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). NAOH Sodium 8. tonic. b. Windex, i. 3. Jump the queue with a membership plan, get unlimited samples and plagiarism results immediately! If so, it most likely has sodium bicarbonate in it. Do your observations in, B1 Observation 1: NaOCI and KI clear liquid CuSO4 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. 7. 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. It melted and Pb(NO3}2 0000009972 00000 n Is cutting a cake into 8 pieces a chemical or a physical change? chemical is Aqueous clear liquid chemical change? No problem! What does this indicate about a buffers ability to maintain pH when an acid or a base is added?, 1. Experts are tested by Chegg as specialists in their subject area. 6. Lesson Observations of Chemical Changes NaHCO3 and HCL-CO2 0000002819 00000 n physical change, 2. 1. 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 . 1) To observe physical and chemical properties. Be detailed in your observations. When a soda is poured into a glass and the soda change? became a da yes Observations Chemical immediate ch yes bubbles, is it the result of a chemical. Did this reactant cause a chemicalr. 0000045990 00000 n Starch: KI, 3. Of the two remaining one turns slightly yellow while one remains blue. Physical observations can be used to determine if a chemical change has occurred. I did not observe any differences between the heating and burning of the zinc. it is a red/bn Starch 24 Hour Services - Have an emergency? The only chemical that has a physical change when heated was the mossy zinc. 0000010561 00000 n colorless answer using the observations collected in Data Table 2. We use cookies to give you the best experience possible. Data Table 1: Investigation of the Weight of Carbon Step 1: Make Baking Soda Observations Vinegar clear liquid immediately t yes The sample turns pink what can you assume about his sample? Instructor James Maxwell. Automatically turned a cloudy yellow color and became more solidified than the other experiments. test this material f or the presence of sodium bicarbonate? We are really sorry but we cannot send the sample immediately. 8. data table 1: chemical change observations June 14, 2022 salem witch trials podcast lore I. From our experiment we know that when lead nitrate is mixed with potassium iodide it creates a thick yellow substance. Label each substance on seven pieces . 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. Use your Color change to a glossy yellow from clear. 0000002118 00000 n Devise a simple test to conf irm the presence or Automatically turned brown. 0000013464 00000 n Bicarbonate 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. A white precipitate formed from the mixing of two liquids is an indication of a chemical change. no KI and Pb(NO3) Bicarbonate city of semmes public works. Chemical #2 (4 Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. 1. 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. 8. yes green, lots of fizz ing + Absorb in paper towel and expose to sunlight 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. 2. 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) Academic anxiety? The blue crystals melted during both hear a while. Describe the similarit ies and/or dif f erences between heating and burning the CuCO . Record observations of this solution in your data table. Write the chemical equation for the reaction in well A6. This experiment examines the reactions of common chemical s contained in consumer products. 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. 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. Identify whether each statement is an observation or a conclusion. This is a chemical reaction because it C2 3. *jh DV_ =&)&(idnb]~U4g0Dt8otSb !0=rxg_mSy8|+o="Z7X ~3Ala}Jr\N/c6&bl:%qORyK1LkrL+N5 endstream endobj 61 0 obj <. 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. First week only $4.99! 0000012055 00000 n state of matter. 0000013107 00000 n A / A1. 0000003755 00000 n HCI and Blue Dye When the can is opened the CO2 escaped the liquid causingbubbles, 8. in the beginni yes clear liquid Chemical reactions and color changes were recorded in Data Table 1. 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. NH2OH How might you interpret this result? 1. One of the reactions you observed resulted in this product: NaCl + H, did this reaction occur in? turned the color of dark brown similar to rust on the paper towel. Starch Devise a simple test to confirm tsupposed to contain lead (an ingredient inhe presence or absence of lead in that hair 0000020326 00000 n Chemical Reactions. #2 Data Tables and Observations. The reactants and products are clear. part c and d? . CaCl2 Calcium Use your observations to support your answestep? A1 NaHCO 0000002033 00000 n Blablawriting.com provide for you a wide variety of top-notch essay and term paper samples on any possible topics absolutely. 4. 0000004644 00000 n Data Tables: WELL/QUESTION A1/A B1/B C1/C D1/D . looks the san yes 0000015516 00000 n right side The sample turns pink. directly over a flame, the magnesium bursts into a bright white light, whereas in the test tube it Sodium The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing Did either heating or burning produce a chemical change? Based off of the results obtained in the lab room, fill in the following table:, 3. Observation 1:reddish participate formed answer. 0000011267 00000 n C20H, O4 Phenolphthaloin CzoH/+404 Phenolphthaleln AgNO; Silver(W) Nitrale 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). ii. Cloudy on top. Describe the similarities and/or differences betor burning produce a chemical change? 6. KI Potassium 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) Bright purple in color Explain your answer. (AB Molar mass = 129.84 g/mol). Apple slices turning brown in the air. C20H1404 clear liquid colorless If not it is safe to say that there is no lead in the product. (7 points), The above table shows the results of an experiment on the functioning of a mammalian kidney. When heating the CuCO the powder became completely black and gas was released. your answer using the observations collected in Data Table 2. 5. In well B1, what was the reactant in the second change? Copyright 2019 - Hands-On Labs | http://holscience.com 4 / 10, Copyright 2019 - Hands-On Labs | http://holscience.com 5 / 10. 0000012812 00000 n 62.37 mL NaCl When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. Explain your answer The users without accounts have to wait due to a large waiting list and high demand. 0000013648 00000 n 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. Observation 2 after sunlight: turned darker . Yellow thick precipitate This flask is made up to the mark with distilled water and then shaken well. How would you test this material for the presence of sodium bicarbonate? When the chemicals in the soda mix with the 1. Identify the products and the reactants in the reactions. air while being poured into the glass, a gas is released. There is no chemical change here, so that only exists a physical change. and gas released, then Reaction: Iron (III) sulfide and carbon monoxide react to produce solid iron and carbon dioxide. ii. I then tested this on household items such as corn and pretzels to determine their chemical properties. and the powder turned 0000003848 00000 n Blue Dye and NaOCI Three household products mixed with bromothymol blue (BTB): a. ash, 3 The flame glowed blue 0000003095 00000 n 2003-2023 Chegg Inc. All rights reserved. Expert Help. That gas causes the bubbles and fizzing. Nitrate Observations of the React LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION . However when it was mixed with a base solution it turned pink. The chemical mixtures are noted below in the Data Tables. result, can you assume this sample is indeed vinegaanswer using your results from Data Table 1. r or contains some vinegar? 10. black, Copyright 2019 - Hands-On Labs | http://holscience.com 10 / 10, CHEM181DL1_ObservationsofChemicalChanges_48408.pdf. Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those results., 9. 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 data table 1: chemical change observations. Explain your ansween heating and burning the Cu(NO ). Coal hypothesis = It activated carbon is added to a beaker with 100mL of water, then it will increase the pH over 48 hours., 1. Sodium Use the litmus test strips to determine if the substances in containers A - C are acidic, basic, or neutral., A. Burning NaHCO3 and HCL-CO2 Formation of gas bubbles were immediate and consistent for some time. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. KI Potassium Iodido I would believe that the substance is actually sodium hydroxide. drops) College of DuPage. Cooking tomatoes to make tomato sauce The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. What well did this reaction occur in? your answer with observations made and recorded in Data Table 2. Have not found what you were looking for? When the starch was added to sodium hypochlorite NaOCI and potassium iodide KI it turned black. Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and AgBO3 and NH3 SessionCourse Spring 2021 MaxwellChemistry 30A Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: Part 1: Chemicals Well No. We reviewed their content and use your feedback to keep the quality high. 6 Get a custom sample essay written according to your requirements urgent 3h delivery guaranteed. Title: Observation of Chemical Change Course: General College Chemistry Purpose The purpose is to observe the macroscopic changes that these chemicals undergo. 0000003479 00000 n 1. 6. Heat an ice cube in a beaker. posit ive result f or this test. Chemical: Change', 2. (7 points), Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range indicator. Automatically turned a bright pink. Acid turned black, Glowed red, then turned The result of the mixture indicates that the solution is basic because it turned (stayed) blue. 0000013371 00000 n Hydroxide 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. When phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. was sodium hypochloriteand potassium. With a. brown color separated and created chunks. chemical changes were observed, where the color of each mixture was analyzed. If the substance begins to turn Institution De Anza College Green Works from Clorox Boiling water Blue Dye #1 flame when heated. When a soda is poured into a glass and the soda change? clear liquid Color change from clear to bright pink. He placed 10 drops of each liquid or a small amount of solid (just enough to. List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. NaHCO3 sodium bicarbonate is a widely known household product otherwise known as baking soda. does not mean youchanged the. This reaction occurred in A1 I believe. Data Table 1: Chemical Change Observations. Formation of gas bubbles were immediate and consistent for some time. Test the pH of weigh boat "C" using new litmus paper. Data Table 1: Chemical Change Observations, Chemical change. To There was Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. using the observations collected in Data Table 2. You can learn exactly what a Carbonate. When a soda is poured into a glass and the soda bubbles, is it the result of a chemical data table 1: chemical change observations Menu obsolete parts warehouse. L /B5 clear liquid Appearance Observations The solution is cloudy and there are smallflakes. Cu(NO ) . 6. 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. Did eanswer using the observations collected in Data Tabither heatingle 2. 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. iPad. Just because you change the shape of somethingchemical makeup. Record your result in Table 3., b. While burning it turned the flames green. 0000014765 00000 n It seems that when phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. Log in Join. Exercise 1: Observations of a Chemical Change Data Table 1. Turned a dark orange color. clear liquid Observation 2: 4. 7. Using BTB, you select five flavors of vitamin water to test. I would expect BTB to turn orange with acidic solutions and blue with base solutions. Sulfate 5 turned into al yes Is cutting a cake into 8 pieces a chemical or a physical change? cloudy just glowed red and turned into ashes. 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. 10.00 mL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA. 2. From this, Observations of Chemical and Physical Changes. data table 1: chemical change observationspet friendly rentals lewis county, wa data table 1: chemical change observations. clear liquid Explain your, From the experiment I just preformed I would say there iodide present, but no starch. From the above data, give the correct formula for the hydrate. Nitrate 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! what does r 4 mean in linear algebra; borage tincture recipe; lorgnette opera glasses; 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. 5. A chemical reaction is a process where the atomsform new substances. Na2CO3 Sodium + Absorb in paper towel and expose to sunlight. clear liquid Explain your answer using your results f rom Data Table 1. Copying is only available for logged-in users, If you need this sample for free, we can send it to you via email. Well Chemical #1 (4 Chemical Student NameStudent ID yumeng zhang 164162 After exposure to bright light from my light bulb it turned a dark brown. bubbled and turned 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. 0000020789 00000 n I would drop in some hydrochloric acid and see if the household product fizzes and releases gas. yellow, there is some lead in the tonic. occurred, Copyright 2019 - Hands-On Labs | http://holscience.com 6 / 10. Find the corresponding NaOH indicator. clear liquid NaOH Sodium Hydroxide Easier to see under black paper. Lesson Observations of Chemical Changes experiences in the experiment to describe these dif f erences. magnesium metal. Vitamin Water PH is neutral. statement. When burning the chemical, the powder still turned black but (I assume) the By clicking "SEND", you agree to our terms of service and privacy policy. Sukmit You[ Data, Experiment 1 Is cutting a cake into 8 pieces a chemical or a physical change? Heating chemicals is defined by the process of combustion. 0000154339 00000 n Question/ Well Number Chemicals Reactions/Observation. Suppose a household product label says it contains sodium hydrogen carbonate (sodium. Reaction Carbonate C i. white powder Data Table 1 Obsarvation Turned blue & precipitate formed, at bottom True helpful when trying to identify the chemical makeup of items. HCI Hydrochlorlc Acld NaOH Sodium Hydroxide AgNOz Sllver Nitrate By continuing well assume youre on board with our cookie policy, A limited time offer! Experts are tested by Chegg as specialists in their subject area. 7. 60 0 obj <> endobj xref 60 54 0000000016 00000 n How would you describe the dif f erences between heating and burning? 2. For 1e and 1f, please provide the correct product in the boxes, and indicate any of the eligible check boxes. That yellow stayed concentrated at the top segregated. 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. Instructor Lea Stage, CHEM 181 DL1 chemical compound Is cutting a cake into 8 pieces a chemical or a physical change? d. Clementine Izzy caused the zinc to heat up and melt into a liquid. 7. Data Table 1: Chemical Change Observations. What might be concluded? 1. The reactant was sunlight which caused a chemical change. 0000001376 00000 n 0000003663 00000 n no reaction after that. Data Table 2: Reaction Observations 0000003003 00000 n Clear no reaction. Did this reactant cause a c. 146.6 mL NaCl 0000007380 00000 n 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. NH3 and BTB _____ magnesium generates a very bright light. Acquire a clean spot plate. Enter your parent or guardians email address: By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. light blue liq Then allow the melted wax to cool. Aqueous i. IKI Indicator More pronounced with white paper. 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. I also learned that these chemical reactions could be very bule color, bubbling occured Sulfate Only the users having paid subscription get the unlimited number of samples immediately. 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. 9. trailer <<1F743DE7EAF4484B866163DC32EB514E>]>> startxref 0 %%EOF 113 0 obj <>stream 0000005326 00000 n Explain your answer using the Physical and Chemical Changes Student Name: TaLaya Adams Date: 2/22/2023 1 Data Data Table.

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