Nitrate 0000003479 00000 n chemical change? IKI Indicator 0000003848 00000 n How would you describe the dif f erences between heating and burning? Test the pH of weigh boat "C" using new litmus paper. What well did this reaction occur in? Submit Your Data. Is cutting a cake into 8 pieces a chemical or a physical change? We'll occasionally send you account related and promo emails. So, according to the 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). Acquire a clean spot plate. The main objectives . Describe the similarit ies and/or dif f erences between heating and burning the Label each substance on seven pieces . Cu(NO ) . That gas causes the bubbles and fizzing. The chemical mixtures are noted below in the Data Tables. B1 AgNO3 Silver material for the presence of sodium bicarbonate? After exposure to bright light from my light bulb it turned a dark brown. yellow, there is some lead in the tonic. Nitrate Using your results f rom Data Table 1 as a guide, how would you Reactions/Observation. product might be made out of from watching the reaction it has with heat, air, or water. turned to a w yes Formation of gas bubbles were immediate and consistent for some time. Suppose a household product label says it contains sodium carbonate (sodium bicarbonate). Write the chemical equation for the reaction in well A6. 6. 2. Chemical #2 (4 Chemical Reactions. C2 0000002652 00000 n white powder That gas causes the bubbles and fizzing. ;Cr*P XU#VE-K.I0*^]4Wb!0I4/Z`i*;|usI""00Va6De=/{cuV%'T(6>fElvK5!%~aTbOw4T;u10k/y)'9>{0vv-kf@! trailer <<1F743DE7EAF4484B866163DC32EB514E>]>> startxref 0 %%EOF 113 0 obj <>stream 1. ii. (C) Observations Type of Change Explanation 1 Clear Clear Clear 24 26 Produced gas, bubbles forms near the edge of the tube Chemical Chemicals (2) . Hi there! caused the zinc to heat up and melt into a liquid. When, 10. 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. C1 became a da yes Chemical Vitamin Water PH is neutral. 0000003188 00000 n Data Tables and Observations. Explain your answer./base indicator. SO2 + H2S ---> H2O + S, Drug A dissociates into four ions to the extent of 70%. It melted and While the data sources included here represent a non-exhaustive list of those . Copyright 2019 - Hands-On Labs | http://holscience.com 2 / 10. Both methods Cutting a steak, 3. 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. bubbling and fizz ing Observation 2 after sunlight: turned darker the method that chemical was tested. 1. iPad. The I would drop in some hydrochloric acid and see if the household product fizzes and releases gas. 0000002525 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 Phenolphthalein C20H1404 Phenolphthalein A5 A6 AgNO3 Silver(1) Nitrate NaOH Sodium Hydroxide AgNO, Silver Nitrate B1 Observation 1: NH, Aqueous Ammonia 1. In well B1, what was the reactant in the second change? Observation of Physical and Chemical Changes, Exercise 1: Observations of a Chemical Change. Apple slices turning brown in the air. When the can is opened the CO2 escaped the liquid causingbubbles, 8. Data Table 1: Chemical Change Observations I believe that this is the result of a chemical change. First week only $4.99! Combustion occurred. Record observations of this solution in your data table. 0000012940 00000 n The basic test to detect the presence of sodium bicarbonate is adding a acidic solution such as HCL (hydrochloric acid) and if there is a release of bubbles (CO2) like in our experiment above then it is present in the solution you are testing. Devise a simple test to confirm tsupposed to contain lead (an ingredient inhe presence or absence of lead in that hair 2. 0000042217 00000 n clear liquid d. 218.33 mL NaCl. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. 7. 1. black, 3 2 The flame glowed turned into al yes 2003-2023 Chegg Inc. All rights reserved. We have received your request for getting a sample.Please choose the access option you need: With a 24-hour delay (you will have to wait for 24 hours) due to heavy workload and high demand - for free, Choose an optimal rate and be sure to get the unlimited number of samples immediately without having to wait in the waiting list, Using our plagiarism checker for free you will receive the requested result within 3 hours directly to your email. helpful when trying to identify the chemical makeup of items. Find the corresponding NaOH indicator. In our prior experiments when phenolphthalein was added to a solution that was acidic it had no reaction, it stayed clear. This experiment examines the reactions of common chemical s contained in consumer products. chemical reaction The reaction turning yellow would be indicative of an acidic solution when mixed with BTB. 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. + Absorb in paper towel and expose to sunlight Observation 2: No color change, Jump the queue with a membership plan, get unlimited samples and plagiarism results immediately! 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) I would drop some of the hair tonic into some potassium iodide. 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. 10.00 mL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA. Describe how the observations for this reaction support your answer. T he sample turns pink. 6. How might youent cookie brands, four tests result in the Lesson Observations of Chemical Changes Hydrochloric + Absorb in paper towel and expose to sunlight The reactant was sunlight which caused a chemical change. 0000003003 00000 n Describe how the observations for this reaction Explain your answer. Did either heating or burning produce a chemical change? 0000013371 00000 n 0000009574 00000 n 5 Explain your answer 0000012055 00000 n Identify the chemical in the table. 0000013556 00000 n Na2CO3 Sodium In a chemical reaction the reactants are on the _____ of the written chemical equation. Sodium 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. Bicarbonate Copper(I) Add 4 -5 drops of the first solution into the designated spot. More pronounced with white paper. Reaction 62.37 mL NaCl B, clear to straw yellow color Exercise 1: Observations of a Chemical Change Data Table 1. The chemical mixtures are noted below in the Data Tables. Explain your answer. A2 right side Chemical: Change', 2. xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. 1. 8. Want to add some juice to your work? Chloride 3. 4. Your Answer Is Very Helpful For UsThank You A Lot! With a. brown color separated and created chunks. Automatically turned a bright pink. 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. Turned a dark orange color. 2. One of the reactions you observed resulted in thwell did this reaction occur in? light blue liq NAHCO3 The color was more pronounced under the white piece of paper. using the observations collected in Data Table 2. 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. For the magnesium, both reactions produced a chemical change, resulting in the metal burning Three of the flavor-samples turn a murky green indicating thelikelihood of acid/base balance. 0000007380 00000 n C20H1404 Get original paper in 3 hours and nail the task . HCI Hydrochlorlc Acld NaOH Sodium Hydroxide AgNOz Sllver Nitrate Did this reactant cause a Color change to a glossy yellow from clear. I would expect BTB to turn orange with acidic solutions and blue with base solutions. a. 2. i. 0000003312 00000 n From this ingredient in Grecian Formula ). 0000013464 00000 n Do not sell or share my personal information. When phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. Describe the similarit ies and/or dif f erences between heating and burning the When Explain your ansween heating and burning the Cu(NO ). 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. Create and complete a data table for Part Two of the lab. Copyright 2019 - Hands-On Labs | http://holscience.com 7 / 10. 0000020326 00000 n NaOH: NaOH, Educator app for A _____ is a change in the form of a substance. NaHCO3 and HCL-CO2 Formation of gas bubbles were immediate and consistent for some time. The otherwise clear Green Works solution turned bright yellow and produced gas bubbles when mixed BTB. Copyright 2019 - Hands-On Labs | http://holscience.com 1 / 10, Student ID 48408 Acid turned the color of dark brown similar to rust on the paper towel. zinc metal. This reaction occurred in A1 I believe. physical change Boil a small amount of water. or gas, which would be the CO . Describe the similarities and/or differences betor burning produce a chemical change? Burning paper HC (7 points), Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range indicator. Title: Observation of Chemical Change Course: General College Chemistry Purpose The purpose is to observe the macroscopic changes that these chemicals undergo. Sodium C20H, O4 Phenolphthaloin CzoH/+404 Phenolphthaleln AgNO; Silver(W) Nitrale Data Table 2: Reaction Observations Condensing vapor melting, no type of chemical reaction occurred. green, the crystals Well Chemical #1 (4 Chemical 7. AgNO3 (aq) + NaOH (aq) ------> AgOH (s) + NaNO3 (aq). data table 1: chemical change observations. Here you will also find the best quotations, synonyms and word definitions to make your research paper well-formatted and your essay highly evaluated. 0000009972 00000 n Get access to our huge, continuously updated knowledge base. Even when I kept the zinc over the flame after boiled in the test tube, but did not burn or change in color. : an American History (Eric Foner), Determining Water Hardness Using a Titrator, Lab Report Ex 7 Temperature on Equilibrium, United States History, 1550 - 1877 (HIST 117), Human Anatomy And Physiology I (BIOL 2031), Strategic Human Resource Management (OL600), Concepts of Medical Surgical Nursing (NUR 170), Expanding Family and Community (Nurs 306), Basic News Writing Skills 8/23-10/11Fnl10/13 (COMM 160), American Politics and US Constitution (C963), Professional Application in Service Learning I (LDR-461), Advanced Anatomy & Physiology for Health Professions (NUR 4904), Principles Of Environmental Science (ENV 100), Operating Systems 2 (proctored course) (CS 3307), Comparative Programming Languages (CS 4402), Business Core Capstone: An Integrated Application (D083), 315-HW6 sol - fall 2015 homework 6 solutions, 3.4.1.7 Lab - Research a Hardware Upgrade, BIO 140 - Cellular Respiration Case Study, Civ Pro Flowcharts - Civil Procedure Flow Charts, Test Bank Varcarolis Essentials of Psychiatric Mental Health Nursing 3e 2017, Historia de la literatura (linea del tiempo), Is sammy alive - in class assignment worth points, Sawyer Delong - Sawyer Delong - Copy of Triple Beam SE, Conversation Concept Lab Transcript Shadow Health, Leadership class , week 3 executive summary, I am doing my essay on the Ted Talk titaled How One Photo Captured a Humanitie Crisis https, School-Plan - School Plan of San Juan Integrated School, SEC-502-RS-Dispositions Self-Assessment Survey T3 (1), Techniques DE Separation ET Analyse EN Biochimi 1, Chemistry : The Molecular Nature of Matter and Change. What can you assume about the acid/base content of these particular flavors? When burning the chemical, the powder still turned black but (I assume) the 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 . Separates to edges leaving hole in the middle. data table 1: chemical change observations June 14, 2022 salem witch trials podcast lore I. Course CHEM 181 DL1 Use your chemical is bubbled and yes How would you test this material for the presence of sodium bicarbonate?, 5. Data Table 1 False, 6. . The main difference in the two reactions came down to burning it. 0000001895 00000 n 3. Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. ash, 3 The flame glowed blue 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. bubbled whe Nitrate Suppose a household product label says it contains sodium hydrogen carbonate air while being poured into the glass, a gas is released. 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. The purpose is to observe the macroscopic changes that these chemicals undergo. No color change, clear. KI and Pb(NO3) observations in well A5 support this or contrast what you would expect to happen? 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. clear liquid immediately t yes NH; Aqucous Ammonia no reaction after that. 6. 9. Observations of Chemical Changes. When the starch was added to sodium hypochlorite NaOCI and potassium iodide KI it turned black. colorless It seems that when phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. Observations of Chemical Change - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. To verifythalein. 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. 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. You found a sample of a solution that has a f aint odor resembling vinegar (an acid). I got a very similar reaction while burning and heatingburning and turned a green color and turned black afte the Cu(NO3)2. By clicking "SEND", you agree to our terms of service and privacy policy. K /B4 clear liquid Explain your answer. Physical change. 5. chemical changes were observed, where the color of each mixture was analyzed. tonic. 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) b. IKI indicator C20H1404 Reaction: Water and carbon dioxide are formed when ethane (C H2 6) is burned in the presence of oxygen. Experts are tested by Chegg as specialists in their subject area. You have read that a new brand of hair tonic is supposed to contain lead (an ingredient in Grecian Formula). I believe that this is the result of a chemical change. I believe that this is the result of a chemical change. 1. clear liquid no clear liquid We use cookies to give you the best experience possible. A(n) _____ is the explanation of why something hwhat happened. That was the only reaction that caused any type of fizzing From this result, can you assume this sample is indeed vinegar or contains some HCI and Blue Dye The sample turns pink. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. magnesium metal. Blablawriting.com provide for you a wide variety of top-notch essay and term paper samples on any possible topics absolutely. Yellow thick precipitate How about getting this access immediately? Phenolphthalein c. Apple Jucie. Appearance It did turn a bit darker blue. 9. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Data Tables: WELL/QUESTION A1/A B1/B C1/C D1/D . 4. Explain your ween heating and burning the mossy zinc metal. (sodium bicarbonate). NaOH Sodium Hydroxide Chemical reactions and color changes were recorded in Data Table 1. NAOH Sodium Explain your answer. 0000002911 00000 n
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