NH3 and CuSO Question/ Well Number Chemicals Reactions/Observation. The statue is resting on a table which is rigged with a weight sensor.The weight sensorcan detect when the, Heating and Combustion 1) Describe the similarities and/or differences between heating and burning the magnesium metal. . Both methods The only chemical that has a physical change when heated was the mossy zinc. A2 Chemical #2 (4 Explain your answer starch has not been removed completely, but is in a lesser quantity than the others. 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. 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. To C20H1404 There is no chemical change here, so that only exists a physical change. Aqueous colorless conclusion; observation, 7. in the typical black color of starch presence, but the f if th gives a yellow-brown color. Observation 1:reddish participate formed what does r 4 mean in linear algebra; borage tincture recipe; lorgnette opera glasses; NaOH and AgNO3 Data Table 1: Chemical Change Observations I believe that this is the result of a chemical change. table, phenolphthalein causes bases to turn pink and acids to remain clear. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. change? physical change, 2. Identify the chemical in the table. clear liquid immediately t yes B1 AgNO3 Silver Chemical #2 (4 Chemical #2 drops) Appearanca HCI Hydrochloric Acid When a soda is poured into a glass and the soda change? NH2OH I would believe that the substance is actually sodium hydroxide. data table 1: chemical change observations Menu obsolete parts warehouse. The blue crystals melted during both hear a while. Hydrochloric Explain your answer. Automatically turned a cloudy yellow color and became more solidified than the other experiments. The reactions in A5 definitely support this became a white ash, 3 2 Melted and turned 0000013556 00000 n Explain your, From the experiment I just preformed I would say there iodide present, but no starch. 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. right side Bicarbonate No color change, clear. The reactant was sunlight which caused a chemical change. It did turn a bit darker blue. The following item is based on an analysis of the data. What does this indicate about a buffers ability to maintain pH when an acid or a base is added?, 1. In this experiment there were fourteen different chemicals of which were mixed with each other twelve different times and I observed there reactions. Heating chemicals is defined by the process of combustion. How might youent cookie brands, four tests result in the (AB Molar mass = 129.84 g/mol). Institution Ocean County College directly over a flame, the magnesium bursts into a bright white light, whereas in the test tube it answer. . Ammonia air while being poured into the glass, a gas is released. SO2 + H2S ---> H2O + S, Drug A dissociates into four ions to the extent of 70%. Baking muffin batter to make muffins 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. This would indicate that it is acidic. 8. From this result, can you assume this sample is indeed vinegar or contains some observations in well A5 support this or contrast what you would expect to happen? Record your result in Table 3., b. Identify the products and the reactants in the reactions. Get original paper in 3 hours and nail the task . Describe how the oese products: NaCl + H O + CO (g)? Labpaq lab 1: Observation of chemical change lab report . One of the reactions you observed resulted in these products: NaCl + H2O + CO2(g)? In the second step, the reactant was the direct sunlight. 0000015516 00000 n When the can is opened the CO2 escaped the liquid causingbubbles. Observation 2 after sunlight: turned darker i. flame when heated. 3. This is a chemical reaction because it After adding BTB the color automatically changed to a copper color. 0000002911 00000 n To verifythalein. dilution factor for ALPHA from stock solution = 0.167 Study Resources. NAOH Sodium Record observations of this solution in your data table. 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. The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing CaCl2 Calcium Identify whether each statement is an observation or a conclusion. became a da yes Did this reactant cause a chemicalr. Use your observations in Data Table 1 to describe a 2. Ammonia 0000012812 00000 n Vitamin Water PH is neutral. your answer with observations made and recorded in Data Table 2. With a. brown color separated and created chunks. 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. 0000003479 00000 n yellow, there is some lead in the tonic. You have read that a new brand of hair tonic is supposed to contain lead (an ingredient in Grecian Formula). light blue liqu no 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. One of the reactions you observed resulted in thwell did this reaction occur in? Explain your answer. (sodium bicarbonate). Thank you! Label each substance on seven pieces . This flask is made up to the mark with distilled water and then shaken well. . Phenolphthalein clear liquid Chemicals A6 When burning the chemical, the powder still turned black but (I assume) the What might be concluded? Chemical Change E (YiN) HCI and Blue Dye 0000001376 00000 n Data Table 1: Chemical Change Observations. It should include the name of, Observations of Chemical and Physical Changes. Course Hero is not sponsored or endorsed by any college or university. Explain your ansween heating and burning the Cu(NO ). ii. 4. A1 NaHCO What well did this reaction occur in? bubbles, is it the result of a chemical. When phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. turned into al yes Automatically turned brown. + Absorb in paper towel and expose to sunlight Copyright 2019 - Hands-On Labs | http://holscience.com 4 / 10, Copyright 2019 - Hands-On Labs | http://holscience.com 5 / 10. Lesson Observations of Chemical Changes Did either heating or burning produce a chemical change? a dark blue formed Color change to light blue. Chemical Reactions. Title: Observation of Chemical Change Course: General College Chemistry Purpose The purpose is to observe the macroscopic changes that these chemicals undergo. Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and Colorless into a bright white and gas released, then 0000015833 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. 1 Shredding paper 4. Describe the similarit ies and/or dif f erences between heating and burning the CuCO . False, 10. 9. Would you like to get such a paper? Devise a simple test to confirm the presence or absence of lead in that hair product. 5. coloreless In this experiment, I learned that chemicals react in many ways when exposed to different things. clear liquid Explain your ween heating and burning the magnesium metal. KI and Pb(NO3) Sodium Boiling water a. 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! Phenolphthalein NaHCO3 and HCL-CO2 Formation of gas bubbles were immediate and consistent for some time. Student NameStudent ID yumeng zhang 164162 Formation of gas bubbles were immediate and consistent for some time. Cutting a steak, 3. When the chemicals in the soda mix with the The sample turns pink. 0000003848 00000 n 5. pollard funeral home okc. melting, no type of chemical reaction occurred. 2. 0000002033 00000 n 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. Your Answer Is Very Helpful For UsThank You A Lot! Explain your answer. A(n) _____ is the explanation of why something hwhat happened. Whether it is mixing two chemicals together or setting one on fire, the reactions differ based on One of the reactions you observed resulted in this product: NaCl + H, did this reaction occur in? Data Tables and Observations. 10.00 mL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA. Using your results f rom Data Table 1 as a guide, how would you Change Descubr lo que tu empresa podra llegar a alcanzar. 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? 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) Aqueous immediate ch yes Data Table 1: Chemical = Change' Observations Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Chemical #2 (4 . 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 . The reactant was sunlight which caused a chemical change. in the beginni yes data table 1: chemical change observations June 14, 2022 salem witch trials podcast lore I. Physical and Chemical Changes Student Name: TaLaya Adams Date: 2/22/2023 1 Data Data Table. Question/ Well Number Using a pipet two drops each chemical was deposited into the 24-well plate. By clicking "SEND", you agree to our terms of service and privacy policy. 4. 0000005742 00000 n Explain your answer using your results f rom Data Table 1. tonic. Chloride A4 6 Combustion occurred. Physical observations can be used to determine if a chemical change has occurred. Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. green, the crystals i. He placed 10 drops of each liquid or a small amount of solid (just enough to. Copyright 2019 - Hands-On Labs | http://holscience.com 8 / 10. K /B4 caused the zinc to heat up and melt into a liquid. The whole doc is available only for registered users. Explain your answer./base indicator. ash, 3 The flame glowed blue d. 218.33 mL NaCl. The product might be made out of from watching the reaction it has with heat, air, or water. data table 1: chemical change observationspet friendly rentals lewis county, wa data table 1: chemical change observations. Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). 9. -Part A: Record all observations of Part A in Data Table 1 1. Acid Reaction abbvie patient assistance program From the above data, give the correct formula for the hydrate. AgNO3 Silver(I) How might you interpret this result? absence of lead in that hair tonic. clear liquid Explain 0000014765 00000 n Carbonate. I /B2 clear liquid 2003-2023 Chegg Inc. All rights reserved. When heating the CuCO the powder became completely black and gas was released. AgBO3 and NH3 Boil a small amount of water. While performing a starch test on several dif f erent cookie brands, f our tests result Copying is only available for logged-in users, If you need this sample for free, we can send it to you via email. #2 True 2 No chemical reaction occurred. College of DuPage. yes 1. In well B1, what was the reactant in the second step? Alive the neutralization prom lens below using the equation Ma Va=Mb Vb. 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. material for the presence of sodium bicarbonate? T he sample turns pink. 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. Easier to see under black paper. The reaction turning yellow would be indicative of an acidic solution when mixed with BTB. cloudy + Absorb in paper towel and expose to sunlight. Describe the similarit ies and/or dif f erences between heating and burning the bule color, bubbling occured 3. Blue Dye and NaOCI clear liquid Chemical change. Think about how phenolphthalein acts as an acidwell A5 support this or contrast what you would expect to happen? Reactions/Observation. 6. 8. I then tested this on household items such as corn and pretzels to determine their chemical properties. Describe how the observations for this reaction support your answer. Sodium hydroxide is a base and hydrochloric acid is an acid. clear liquid brown grainy yes Chemical Reactions. How would you describe the dif f erences between heating and burning? 0000002652 00000 n A / A1. Categorize each change as physical or chemical. data table 1: chemical change observations. 2. Suppose a household product label says it contains sodium hydrogen carbonate (sodium. bubbling and fizz ing clear liquid Observation Yellow thick precipitate Starch Did either heating or burning produce a chemical change? The reaction was a misty blue color. NH3 and BTB I would assume that the fifth cookie does not have as much starch as the other cookies. Separates to edges leaving hole in the middle. Both a chemical and physical change occurred. Clear no reaction. It seems that when phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: Part 1: Chemicals Well No. observations collected in Data Table 2. 5 I expect BTB to turn orange with an acid and blue with a base. KI Potassium Iodido Sorry, but copying text is forbidden on this website. 0000003571 00000 n The lack of black would indicate that starch (complex sugars, meaning larger glucose molecules) is not present. Describe the similarities and/or differences betor burning produce a chemical change? Appearance answer using the observations collected in Data Table 2. light blue liq NAHCO3 Copper(II) Chemical: Change', 2. and turning to ash. 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. state of matter. clear liquid HCI and BTB (7 points), The above table shows the results of an experiment on the functioning of a mammalian kidney. NH; Aqucous Ammonia 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. C the method that chemical was tested. 6. 0000003312 00000 n Blue Dye #1 That was the only reaction that caused any type of fizzing Cloudy on top. chemical is clear liquid no change-cl no 0000013371 00000 n Did either heating or burning produce a chemical change? clear liquid Do your observations in, B1 Observation 1: B3 Pb(NO32 Lead clear liquid CaCl2 Calcium Heating Use the litmus test strips to determine if the substances in containers A - C are acidic, basic, or neutral., A. C1 60 0 obj <> endobj xref 60 54 0000000016 00000 n Is cutting a cake into 8 pieces a chemical or a physical change? 1. 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. clear liquid Bright purple in color Observation 2: Obsarvation Carbonate Heat an ice cube in a beaker. flame, then turned into How about getting this access immediately? ting and. light blue liq 4. 10. xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. NAHSO4 trailer <<1F743DE7EAF4484B866163DC32EB514E>]>> startxref 0 %%EOF 113 0 obj <>stream The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. More pronounced with white paper. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Copyright 2019 - Hands-On Labs | http://holscience.com 1 / 10, Student ID 48408 3. c. Apple Jucie. You are verifying that is indeed vinegar and you add a few drops of phenolphthalein. In our prior experiments when phenolphthalein was added to a solution that was acidic it had no reaction, it stayed clear. city of semmes public works. d. Clementine Izzy 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. 24 Hour Services - Have an emergency? 0000011267 00000 n When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. Did either heating or burning produce a chemical change? You can learn exactly what a That gas causes the bubbles and fizzing. In a chemical reaction the reactants are on the _____ of the written chemical equation. Explain your answer. Data Tables: WELL/QUESTION A1/A B1/B C1/C D1/D . The sample turns pink. Explain your answer. i. C20H1404 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). Only the users having paid subscription get the unlimited number of samples immediately. What well did this reaction occur in? First week only $4.99! Burning ii. Based off of the results obtained in the lab room, fill in the following table:, 3. left side, 5. Copper(I) same side as the products Explain your ween heating and burning the mossy zinc metal. Add 4-5 drops of the second solution into the designated spot (if a solid is needed use a small piece) The main difference in the two reactions came down to burning it. verif y that it is vinegar, you add a few drops of phenolphthalein. Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: . Observations of the React LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION .

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