There is no chemical change here, so that only exists a physical change. The chemical mixtures are noted below in the Data Tables. no Sodium Automatically turned a cloudy yellow color and became more solidified than the other experiments. clear liquid We use cookies to give you the best experience possible. Copyright 2019 - Hands-On Labs | http://holscience.com 2 / 10. Explain your answer. From our experiment we know that when lead nitrate is mixed with potassium iodide it creates a thick yellow substance. 0000002652 00000 n
The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing clear liquid Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those results., 9. Baking muffin batter to make muffins When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. 0000003312 00000 n
Did this reactant cause a 2. Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). 9. True Sulfate Did either heating or burning produce a chemical change? 3. chemical reaction magnesium metal. Did either heating or burning produce a chemical change? Burning T hink about how phenolphthalein acts as an acid/base indicator. NaOCI and KI 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. Devise a simple test to confirm tsupposed to contain lead (an ingredient inhe presence or absence of lead in that hair From this, Observations of Chemical and Physical Changes. J /B3 A4 Want to add some juice to your work? College of DuPage. Instructor James Maxwell. . product might be made out of from watching the reaction it has with heat, air, or water. The only chemical that has a physical change when heated was the mossy zinc. Labpaq lab 1: Observation of chemical change lab report . Is cutting a cake into 8 pieces a chemical or a physical change? The reactant was sunlight which caused a chemical change. what does r 4 mean in linear algebra; borage tincture recipe; lorgnette opera glasses; Submit Your Data. Of the two remaining one turns slightly yellow while one remains blue. 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. No problem! When the can is opened the CO2 escaped the liquid causingbubbles. Is cutting a cake into 8 pieces a chemical or a physical change? Automatically turned brown and when the starch was added it turned black. Turned a dark orange color. 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) Both a chemical and physical change occurred. Color change to a glossy yellow from clear. Explain your ansween heating and burning the Cu(NO ). Lesson Observations of Chemical Changes Hydroxide IKI Indicator 0000012940 00000 n
clear liquid 0000016961 00000 n
1. 0000003003 00000 n
NaOH and AgNO3 Blue Dye #1 looks the san yes Explain your answer. Which of the four chemicals that was heated produced a physical change? Test the pH of weigh boat "C" using new litmus paper. In this experiment, I learned that chemicals react in many ways when exposed to different things. Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato False. Instructor Lea Stage, CHEM 181 DL1 C1 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. So, according to the Phenolphthalein data table 1: chemical change observations. 0000008196 00000 n
Automatically turned a bright pink. To verifythalein. data table 1: chemical change observationspet friendly rentals lewis county, wa data table 1: chemical change observations. Aqueous 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. 0000045990 00000 n
5. Did either heating or burning produce a chemical change? I would assume that the fifth cookie does not have as much starch as the other cookies. 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. When burning the chemical, the powder still turned black but (I assume) the Acid I would expect BTB to turn orange with acidic solutions and blue with base solutions. clear liquid Hydrochloric d. Clementine Izzy Separates to edges leaving hole in the middle. Acid 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. 0000037522 00000 n
4. Clear no reaction. 0000004983 00000 n
Data Table 1 melting, no type of chemical reaction occurred. helpful when trying to identify the chemical makeup of items. vinegar? C2 3. Three household products mixed with bromothymol blue (BTB): a. 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) bubbled whe flame when heated. The main objectives . Describe how the oese products: NaCl + H O + CO (g)? drops) test this material f or the presence of sodium bicarbonate? 1. Institution Ocean County College The main difference in the two reactions came down to burning it. Use your observations to support your answer. 0000042217 00000 n
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. I /B2 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. Chemical the method that chemical was tested. _____ magnesium generates a very bright light. I believe that this is the result of a chemical change. One of the reactions you observed resulted in these products: NaCl + H2O + CO2(g)? A metal is added to a liquid and bubbles form. Cooking an egg A2 HC Chemicals The blue crystals melted during both hear a while. Automatically turned a dark green. 10.00 mL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA. light blue liqu no 2. 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. A white precipitate formed from the mixing of two liquids is an indication of a chemical change. i. Jump the queue with a membership plan, get unlimited samples and plagiarism results immediately! 0000003095 00000 n
b. A chemical reaction occurred. 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. Carbonate. List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. 2. B1 AgNO3 Silver This experiment examines the reactions of common chemical s contained in consumer products. chemical compound conclusion; observation, 7. AgNO3 Silver(I) air while being poured into the glass, a gas is released. colorless This is a chemical reaction because it 0000009574 00000 n
Course Hero is not sponsored or endorsed by any college or university. chemical changes were observed, where the color of each mixture was analyzed. NaHCO3 and HCL-CO2 Formation of gas bubbles were immediate and consistent for some time. 6 light blue liq For the magnesium, both reactions produced a chemical change, resulting in the metal burning Sodium Lead() Nitrate Whatbservations for this reaction support your L /B5 became a white ash, 3 2 Melted and turned Physical and Chemical Changes Student Name: TaLaya Adams Date: 2/22/2023 1 Data Data Table. Chemical Reactions. of substances interact with one another to, 4. Enter your parent or guardians email address: By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy. Describe the similarit ies and/or dif f erences between heating and burning the CuCO . zinc metal. 0000020326 00000 n
chemical is bubbled and yes 1. : 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. Record your result in Table 3., b. 8. became a da yes 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). Explain your answer using your results f rom Data Table 1. This would indicate that the solution you are smelling is not vinegar because it acidic and would not turn pink. 1. When a soda is poured into a glass and the soda change? bubbles, is it the result of a chemical. Data Table 1: Chemical = Change' Observations Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Chemical #2 (4 . Chemical Change E (YiN) 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. Describe the similarit ies and/or dif f erences between heating and burning the 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 Easier to see under black paper. By clicking "SEND", you agree to our terms of service and privacy policy. When the can is opened the CO2 escaped the liquid causingbubbles, 8. The reactions in A5 definitely support this 0000009972 00000 n
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 light blue liq NAHCO3 I also learned that these chemical reactions could be very False, 10. + Absorb in paper towel and expose to sunlight same side as the products 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. A chemical reaction is a process where the atomsform new substances. You can learn exactly what a 1. ash, 3 The flame glowed blue 8. Data Tables: WELL/QUESTION A1/A B1/B C1/C D1/D . Bright purple in color 0000020789 00000 n
bubbles, is it the result of a chemical. black, 3 2 The flame glowed Explain your boiled in the test tube, but did not burn or change in color. From this Copyright 2019 - Hands-On Labs | http://holscience.com 1 / 10, Student ID 48408 By continuing well assume youre on board with our cookie policy, A limited time offer! chemical change What well did this reaction occur in? 8. 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. (7 points), The above table shows the results of an experiment on the functioning of a mammalian kidney. answer using the observations collected in Data Table 2. 0000003755 00000 n
Ammonia In well B1, what was the reactant in the second step? Descubr lo que tu empresa podra llegar a alcanzar. Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and This flask is made up to the mark with distilled water and then shaken well. -Part A: Record all observations of Part A in Data Table 1 1. A6 turned the color of dark brown similar to rust on the paper towel. and the powder turned 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 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. Copying is only available for logged-in users, If you need this sample for free, we can send it to you via email. C your answer using the observations collected in Data Table 2. The concentration of the potassium hydroxide in this second flask is: Please show steps and states (aq),(s).. etc thank you. 0000023384 00000 n
+ Absorb in paper towel and expose to sunlight. into a bright white 0000009027 00000 n
Obsarvation Question/ Well Number Chemicals Reactions/Observation. physical change, 2. NaHCO3 and HCL-CO2 A(n) _____ is the explanation of why something hwhat happened. Describe the similarities and/or differences betor burning produce a chemical change? Did either heating or burning produce a chemical change? (7 points), 1. 2003-2023 Chegg Inc. All rights reserved. The result of the mixture indicates that the solution is basic because it turned (stayed) blue. SO2 + H2S ---> H2O + S, Drug A dissociates into four ions to the extent of 70%. 1. your answer with observations made and recorded in Data Table 2. 0000011267 00000 n
Describe the similarit ies and/or dif f erences between heating and burning the mossy Suppose a household product label says it contains sodium hydrogen carbonate Starch 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 . Sukmit You[ Data, Experiment 1 A _____ is a change in the form of a substance. Just because you change the shape of somethingchemical makeup. CaCl2 Calcium NAHSO4 change? 6. HCI Hydrochlorlc Acld NaOH Sodium Hydroxide AgNOz Sllver Nitrate A / A1. ;Cr*P
XU#VE-K.I0*^]4Wb!0I4/Z`i*;|usI""00Va6De=/{cuV%'T(6>fElvK5!%~aTbOw4T;u10k/y)'9>{0vv-kf@! C20H1404 in the typical black color of starch presence, but the f if th gives a yellow-brown color. Copyright 2019 - Hands-On Labs | http://holscience.com 7 / 10. Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: . NaOH Sodium 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. 155.9 ml NaCl 3. clear liquid brown grainy yes 1) To observe physical and chemical properties. With a. brown color separated and created chunks. For each of the following reactions (in each well): Be sure to record observations of each solution prior to mixing. HCI and phenolphthalein 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? cloudy Use your observations in Data Table 1 to describe a Get original paper in 3 hours and nail the task . In a chemical reaction the reactants are on the _____ of the written chemical equation. KI Potassium 5 One of the reactions you observed resulted in these products: NaCl + H O + CO (g)? 0000005742 00000 n
Na2CO3 Sodium ii. tonic. Chemical Reactions. appened, and a(n) _____ is a description of, observation; conclusion Copper(II) 5 It did turn a bit darker blue. Observations of Chemical Change - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. Chemical #2 (4 Chemical #2 drops) Appearanca HCI Hydrochloric Acid 1. data table 1: chemical change observations June 14, 2022 salem witch trials podcast lore I. Sorry, but copying text is forbidden on this website. NAOH Sodium Explain your answer. Automatically turned brown. Starch: KI, 3. 2. clear liquid Observations of the React LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION . Phenolphthalein How would you test this material for the presence of sodium bicarbonate?, 5. HC How would you test this material for the presence of sodium bicarbonate? %PDF-1.6
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I did not observe any differences between the heating and burning of the zinc. NaOH and phenolphthalein #2 1 The color changed from blue to green. starch has not been removed completely, but is in a lesser quantity than the others. The solution is cloudy and there are smallflakes. Your Answer Is Very Helpful For UsThank You A Lot! c. Apple Jucie. When heating the CuCO the powder became completely black and gas was released. Burning paper 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. Use your observations to support your answestep? abbvie patient assistance program Add 4 -5 drops of the first solution into the designated spot. NH; Aqucous Ammonia Combining dry ingredients (flour, salt, sugar,baking powder) when making muffins Observation 2: clear liquid The sample turns pink. To 0000013556 00000 n
Data Table 1: Chemical Change Observations. True The whole doc is available only for registered users. Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. Institution De Anza College We reviewed their content and use your feedback to keep the quality high. Student NameStudent ID yumeng zhang 164162 Is cutting a cake into 8 pieces a chemical or a physical change? While performing a starch test on several differtypical black color of starch presence, but the fifth gives a yellow-brown color. 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. immediate ch yes Did answer using the observations collected in Data Tabeither heatingle 2. Even when I kept the zinc over the flame after 0000013648 00000 n
statement. A physical change occurred. Is cutting a cake into 8 pieces a chemical or a physical change? city of semmes public works. Explain your answer. You are verifying that is indeed vinegar and you add a few drops of phenolphthalein. Hydroxide 0000005326 00000 n
3. green, lots of fizz ing no reaction after that. drops) 0000002118 00000 n
observations collected in Data Table 2. A1 NaHCO Using a pipet two drops each chemical was deposited into the 24-well plate. KI Potassium Iodido Get access to our huge, continuously updated knowledge base. Get 5 free video unlocks on our app with code GOMOBILE, Data Table 1: Chemical = Change' Observations Explain your answer The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. Copyright 2019 - Hands-On Labs | http://holscience.com 8 / 10. Color turned brown-looks thicker List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. Label each substance on seven pieces . Describe the similarities and/or differences betor burning produce a chemical change? 50.00 cm3 of a 1.5784 mol.dm-3 solution of potassium hydroxide is transferred to an empty 700.00 cm3 volumetric flask. I believe that this is the result of a chemical change. gas that was released caused the flame to glow bright blue. Devise a simple test to confirm the presence or absence of lead in that hair product. KI and Pb(NO3) 4. Formation of gas bubbles were immediate and consistent for some time. clear liquid 62.37 mL NaCl c. 146.6 mL NaCl Did either heawer using the observations collected in Data Table 3 2 ting or2. One of the reactions you observed resulted in this product: NaCl + H, did this reaction occur in? When the chemicals in the soda mix with the Use the litmus test strips to determine if the substances in containers A - C are acidic, basic, or neutral., A. 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.
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