B4 NaHSO4 . Did either heating or burning produce a chemical change? 5 abbvie patient assistance program A metal is added to a liquid and bubbles form. I did not observe any differences between the heating and burning of the zinc. verif y that it is vinegar, you add a few drops of phenolphthalein. clear liquid Get 5 free video unlocks on our app with code GOMOBILE, Data Table 1: Chemical = Change' Observations light blue liq NAHCO3 Using a pipet two drops each chemical was deposited into the 24-well plate. Ammonia *jh DV_ =&)&(idnb]~U4g0Dt8otSb !0=rxg_mSy8|+o="Z7X ~3Ala}Jr\N/c6&bl:%qORyK1LkrL+N5 endstream endobj 61 0 obj <. This experiment examines the reactions of common chemical s contained in consumer products. However when it was mixed with a base solution it turned pink. The sample turns pink. After adding BTB the color automatically changed to a copper color. Boiling water B1 AgNO3 Silver material for the presence of sodium bicarbonate? (7 points), Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range indicator. The reaction was a misty blue color. bubbles, is it the result of a chemical. Blue Dye and NaOCI True Call us now: 012 662 0227 what happened to yourpalross. 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. Is cutting a cake into 8 pieces a chemical or a physical change? College of DuPage. SessionCourse Spring 2021 MaxwellChemistry 30A clear liquid Add 4-5 drops of the second solution into the designated spot (if a solid is needed use a small piece) observations collected in Data Table 2. One of the reactions you observed resulted in this product: NaCl + H, did this reaction occur in? 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 . 0000001376 00000 n Copyright 2019 - Hands-On Labs | http://holscience.com 8 / 10. 3. Suppose a household product label says it contains sodium hydrogen carbonate (sodium. I would believe that the substance is actually sodium hydroxide. Other than some bubbles produced there was no significant changes occurred when BTB was added. Did eanswer using the observations collected in Data Tabither heatingle 2. Burning paper Nitrate Explain your answer More pronounced with white paper. False. Data Table 1: Chemical Change Observations, Chemical change. 62.37 mL NaCl Observation of Physical and Chemical Changes, Exercise 1: Observations of a Chemical Change. Acid 0000013107 00000 n result, can you assume this sample is indeed vinegaanswer using your results from Data Table 1. r or contains some vinegar? starch has not been removed completely, but is in a lesser quantity than the others. 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. 4. Vinegar is made up to acetic The reactant was sunlight which caused a chemical change. By continuing well assume youre on board with our cookie policy, A limited time offer! . Starch After exposure to bright light from my light bulb it turned a dark brown. Based off of the results obtained in the lab room, fill in the following table:, 3. In well B1, what was the reactant in the second step? CuSO4 Physical and Chemical Changes Student Name: TaLaya Adams Date: 2/22/2023 1 Data Data Table. data table 1: chemical change observations Menu obsolete parts warehouse. How about getting a customized one? Hi there! Data Table 1: Investigation of the Weight of Carbon Step 1: Make Baking Soda Observations Vinegar No problem! Describe the similarit ies and/or dif f erences between heating and burning the c. 146.6 mL NaCl Phenolphthalein acts well as an acid/base indicator. We use cookies to give you the best experience possible. Data Table 1: Chemical = Change' Observations Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Chemical #2 (4 . Aqueous 0000007380 00000 n observations in well A5 support this or contrast what you would expect to happen? While performing a starch test on several dif f erent cookie brands, f our tests result 6. HC 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. (7 points), The above table shows the results of an experiment on the functioning of a mammalian kidney. Show your work: Balance the following chemical equation: i. Na2CO3 Sodium test this material f or the presence of sodium bicarbonate? 0000015516 00000 n 50.00 cm3 of a 1.5784 mol.dm-3 solution of potassium hydroxide is transferred to an empty 700.00 cm3 volumetric flask. flame, then turned into state of matter. Chemical Change E (YiN) 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 Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato + Absorb in paper towel and expose to sunlight. The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. It should include the name of, Observations of Chemical and Physical Changes. When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. your answer with observations made and recorded in Data Table 2. boiled in the test tube, but did not burn or change in color. 0000003755 00000 n HCI and Blue Dye What can you assume about the acid/base content of these particular flavors? dilution factor for BETA from ALPHA solution = 0.0476 The color was more pronounced under the white piece of paper. A chemical reaction is a process where the atomsform new substances. 2. Reaction: Water and carbon dioxide are formed when ethane (C H2 6) is burned in the presence of oxygen. 0000026639 00000 n NH2OH 0000003003 00000 n Hydrochloric Heating chemicals is defined by the process of combustion. Chemical: Change', 2. The main objectives . When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. Data Table 1: Chemical Change Observations. 2. C1 Data Table 1 white powder Blue Dye #1 0000011267 00000 n physical change, 2. 1. clear liquid immediately t yes ii. Did either heating or burning produce a chemical change? 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). Clear no reaction. Get a custom sample essay written according to your requirements urgent 3h delivery guaranteed. clear liquid brown grainy yes It seems that when phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. A chemical reaction occurred. Jump the queue with a membership plan, get unlimited samples and plagiarism results immediately! Labpaq lab 1: Observation of chemical change lab report . Cloudy on top. Copper(I) Looked thicker than other liquids. 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. colorless Identify the products and the reactants in the reactions. Separates to edges leaving hole in the middle. black, Copyright 2019 - Hands-On Labs | http://holscience.com 10 / 10, CHEM181DL1_ObservationsofChemicalChanges_48408.pdf. Acquire a clean spot plate. Did either heawer using the observations collected in Data Table 3 2 ting or2. 0000003479 00000 n C20H1404 green, lots of fizz ing 0000013556 00000 n Use your observations in Data Table 1 to describe a In a chemical reaction the reactants are on the _____ of the written chemical equation. Please please please show all the work Describe the similarities and/or differences betor burning produce a chemical change? The users without accounts have to wait due to a large waiting list and high demand. Explain your, From the experiment I just preformed I would say there iodide present, but no starch. A1 NaHCO 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. 1 The color changed from blue to green. vinegar? Change A2 clear liquid Observation When the can is opened the CO2 escaped the liquid causingbubbles. HCI and BTB Formation of gas bubbles were immediate and consistent for some time. Chloride Automatically turned brown. How might you interpret this result? Color was almost Identical to BTB, dark blue. List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. 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. KI Potassium Iodido clear liquid Use your 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. 0000009972 00000 n Vitamin Water PH is neutral. In this experiment there were fourteen different chemicals of which were mixed with each other twelve different times and I observed there reactions. 5. statement. looks the san yes I then tested this on household items such as corn and pretzels to determine their chemical properties. 2 No chemical reaction occurred. Bicarbonate Cutting a steak, 3. 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. 7. Your Answer Is Very Helpful For UsThank You A Lot! bubbled and turned Chemicals False, 10. Condensing vapor 0000015833 00000 n Sodium b. Use your observations to support your answer. 6 First week only $4.99! Sorry, but copying text is forbidden on this website. Experts are tested by Chegg as specialists in their subject area. your answer using the observations collected in Data Table 2. This is a chemical reaction because it Is cutting a cake into 8 pieces a chemical or a physical change? To You are verifying that is indeed vinegar and you add a few drops of phenolphthalein. 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. KI Potassium coloreless Course CHEM 181 DL1 6. 0000008196 00000 n List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. 8. trailer <<1F743DE7EAF4484B866163DC32EB514E>]>> startxref 0 %%EOF 113 0 obj <>stream became a white ash, 3 2 Melted and turned You'll get a detailed solution from a subject matter expert that helps you learn core concepts. There is no chemical change here, so that only exists a physical change. What well did this reaction occur in? Be detailed in your observations. data table 1: chemical change observationspet friendly rentals lewis county, wa data table 1: chemical change observations. Reaction ;Cr*P XU#VE-K.I0*^]4Wb!0I4/Z`i*;|usI""00Va6De=/{cuV%'T(6>fElvK5!%~aTbOw4T;u10k/y)'9>{0vv-kf@! Explain your ansween heating and burning the Cu(NO ). Add 4 -5 drops of the first solution into the designated spot. Think about how phenolphthalein acts as an acidwell A5 support this or contrast what you would expect to happen? and the powder turned Which of the four chemicals that was heated produced a physical change? melting, no type of chemical reaction occurred. Pb(NO z Load(W) Nltrate The reactant was sunlight which caused a chemical change. That gas causes the bubbles and fizzing. Lesson Observations of Chemical Changes 1. 0000013648 00000 n Explain your ween heating and burning the magnesium metal. 0000002033 00000 n 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. Bisulfate Sodium table, phenolphthalein causes bases to turn pink and acids to remain clear. 0000004644 00000 n Get access to our huge, continuously updated knowledge base. Three household products mixed with bromothymol blue (BTB): a. 0000016961 00000 n If not it is safe to say that there is no lead in the product. When a soda is poured into a glass and the soda bubbles, is it the result of a chemical ii. was sodium hypochloriteand potassium. A chemical change may also be referred to as a _____. Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: . Experts are tested by Chegg as specialists in their subject area. IKI indicator 0000014765 00000 n chemical change MW of Drug A= 892.54 (assume final volume will be qs with sterile water for injection) Color change to light blue. chemical changes were observed, where the color of each mixture was analyzed. -Part A: Record all observations of Part A in Data Table 1 1. HCI Hydrochlorlc Acld NaOH Sodium Hydroxide AgNOz Sllver Nitrate 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 . 1. 0000012055 00000 n Sulfate Data Table 2: Reaction Observations . Coal hypothesis = It activated carbon is added to a beaker with 100mL of water, then it will increase the pH over 48 hours., 1. Cu(NO ) . Create and complete a data table for Part Two of the lab. cloudy ii. 24 Hour Services - Have an emergency? left side, 5. change? From this, Observations of Chemical and Physical Changes. The only chemical that has a physical change when heated was the mossy zinc. using the observations collected in Data Table 2. Whether it is mixing two chemicals together or setting one on fire, the reactions differ based on 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. Well Chemical #1 (4 Chemical How would you describe the dif f erences between heating and burning? turned black, Glowed red, then turned When the can is opened the CO2 escaped the liquid causingbubbles, 8. 0000003848 00000 n The main difference in the two reactions came down to burning it. (AB Molar mass = 129.84 g/mol). Copper(II) Phenolphthalein (Yes/No) The reactions in A5 definitely support this Reaction: Iron (III) sulfide and carbon monoxide react to produce solid iron and carbon dioxide. posit ive result f or this test. 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). 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. Instructor Lea Stage, CHEM 181 DL1 just glowed red and turned into ashes. i. Boil a small amount of water. C I believe that this is the result of a chemical change. NaHCO3 and HCL-CO2 Observations of the React LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION . The gas that was released caused the flame to glow bright blue. The whole doc is available only for registered users. Appearance Alive the neutralization prom lens below using the equation Ma Va=Mb Vb. 155.9 ml NaCl It did turn a bit darker blue. The goals of the experiment observe properties of chemical reactions and to associate chemical properties with household products. 0000003571 00000 n b. Windex, i. T he sample turns pink. 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Observations Chemical 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. Write the chemical equation for the reaction in well A6. Explain How might you interpret this result? chemical reaction Instructor James Maxwell. One of the reactions you observed resulted in these products: NaCl + H2O + CO2(g)? What well did this reaction occur in? Describe how the observations for this reaction 0000003095 00000 n You found a solution that has a faint odor resembling vinegar. d. 218.33 mL NaCl. NaHCO3 sodium bicarbonate is a widely known household product otherwise known as baking soda. 3. air while being poured into the glass, a gas is released. does not mean youchanged the. Combining dry ingredients (flour, salt, sugar,baking powder) when making muffins Acid d. Clementine Izzy Explain your answer using your results f rom Data Table 1. 0000156016 00000 n 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) Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those results., 9. pollard funeral home okc. Identify the products and the reactants in the reactions. a dark blue formed The reactants and products are clear. 1) To observe physical and chemical properties. When burning the chemical, the powder still turned black but (I assume) the Student NameStudent ID yumeng zhang 164162 chemical compound became a da yes Do your 8. Thank you! Copyright 2019 - Hands-On Labs | http://holscience.com 2 / 10. 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