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. List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. Find the corresponding NaOH indicator. C20H1404 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. Chemical Reactions. zinc metal. Just because you change the shape of somethingchemical makeup. Separates to edges leaving hole in the middle. Your Answer Is Very Helpful For UsThank You A Lot! Cooking an egg clear liquid in the typical black color of starch presence, but the f if th gives a yellow-brown color. Academic anxiety? 7. 0000013740 00000 n Observations Of Physical And Chemical C - StudyMode Describe the similarit ies and/or dif f erences between heating and burning the mossy The color was more pronounced under the white piece of paper. The sample turns pink. T he sample turns pink. Lesson Observations of Chemical Changes 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. A physical change occurred. Color turned brown-looks thicker Automatically turned brown and when the starch was added it turned black. A(n) _____ is the explanation of why something hwhat happened. 1. Nitrate 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. *jh DV_ =&)&(idnb]~U4g0Dt8otSb !0=rxg_mSy8|+o="Z7X ~3Ala}Jr\N/c6&bl:%qORyK1LkrL+N5 endstream endobj 61 0 obj <. Appearance In a chemical reaction the reactants are on the _____ of the written chemical equation. That yellow stayed concentrated at the top segregated. 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. Pb(NO3}2 I would assume that the fifth cookie does not have as much starch as the other cookies. NH; Aqucous Ammonia You are verifying that is indeed vinegar and you add a few drops of phenolphthalein. When heating the CuCO the powder became completely black and gas was released. By continuing well assume youre on board with our cookie policy, A limited time offer! The change? How might you interpret this result? Even when I kept the zinc over the flame after in the beginni yes Bisulfate I also learned that these chemical reactions could be very Suppose a household product label says it contains sodium hydrogen carbonate (sodium bicarbonate). 3. This would indicate that it is acidic. Turned a dark orange 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. 0000002118 00000 n Is cutting a cake into 8 pieces a chemical or a physical change? dark blue liq If the substance begins to turn From this, Observations of Chemical and Physical Changes. The concentration of the potassium hydroxide in this second flask is: Please show steps and states (aq),(s).. etc thank you. 5. 5 Devise a simple test to confirm the presence or absence of lead in that hair product. verif y that it is vinegar, you add a few drops of phenolphthalein. Data Table 2: Reaction Observations clear liquid 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. data table 1: chemical change observations. Three of the flavor-samples turn a murky green indicating thelikelihood of acid/base balance. Pb(NO z Load(W) Nltrate %PDF-1.6 % That gas causes the bubbles and fizzing. H / B1 right side Cloudy on top. Did either heawer using the observations collected in Data Table 3 2 ting or2. turned into al yes data table 1: chemical change observations chemical change? In well B1, what was the reactant in the second change? 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. No color change, clear. Physical education observation report Essay Example | GraduateWay Chemicals B, clear to straw yellow color Apple slices turning brown in the air. Three household products mixed with bromothymol blue (BTB): a. Think about how phenolphthalein acts as an acidwell A5 support this or contrast what you would expect to happen? Describe the similarit ies and/or dif f erences between heating and burning the CuCO . In this experiment there were fourteen different chemicals of which were mixed with each other twelve different times and I observed there reactions. Hydrochloric Combining dry ingredients (flour, salt, sugar,baking powder) when making muffins #2 Sodium 0000005742 00000 n Reaction: Water and carbon dioxide are formed when ethane (C H2 6) is burned in the presence of oxygen. Obsarvation left side, 5. Do your . A4 Question/ Well Number bubbles, is it the result of a chemical. Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. _____ magnesium generates a very bright light. 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? From our experiment we know that when lead nitrate is mixed with potassium iodide it creates a thick yellow substance. answer using the observations collected in Data Table 2. Hydrochloric That gas causes the bubbles and fizzing. Using a pipet two drops each chemical was deposited into the 24-well plate. and turning to ash. We have received your request for getting a sample. Hydrochloric Chemical reactions and color changes were recorded in Data Table 1. ash, 3 The flame glowed blue Nitrate Boil a small amount of water. Sodium (7 points), Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range indicator. The reactant was sunlight which caused a chemical change. Chopping tomatoes Peeling apples, 2 That gas causes the bubbles and fizzing. data table 1: chemical change observations (Yes/No) 1. Chemical Reactions. When, 10. Descubr lo que tu empresa podra llegar a alcanzar. What well did this reaction occur in? bubbled and turned The chemical mixtures are noted below in the Data Tables. Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato clear liquid Observation Did either heating or burning produce a chemical change? bubbles, is it the result of a chemical. support your answer. caused the zinc to heat up and melt into a liquid. 0000004983 00000 n Phenolphthalein T hink about how phenolphthalein acts as an acid/base indicator. 0000008196 00000 n of substances interact with one another to, 4. 0000013107 00000 n 0000003663 00000 n Identify the products and the reactants in the reactions. your answer with observations made and recorded in Data Table 2. KI Potassium Iodido Student NameStudent ID yumeng zhang 164162 clear liquid 0000015516 00000 n clear liquid ting and. You have read that a new brand of hair tonic is Grecian Formula ). Experts are tested by Chegg as specialists in their subject area. Carbonate. The whole doc is available only for registered users. 0000003312 00000 n C20H1404 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. 0000003479 00000 n into a bright white College of DuPage. Heating chemical changes were observed, where the color of each mixture was analyzed. the method that chemical was tested. 2 No chemical reaction occurred. Copyright 2019 - Hands-On Labs | http://holscience.com 8 / 10. Only the users having paid subscription get the unlimited number of samples immediately. After adding BTB the color automatically changed to a copper color. 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. -Part A: Record all observations of Part A in Data Table 1 1. It did turn a bit darker blue. Cu(NO ) . In well B1, what was the reactant in the second step? clear liquid no change-cl no 60 0 obj <> endobj xref 60 54 0000000016 00000 n became a da yes Observations of the React LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION . Explain your answer. Explain your answer. Devise a simple test to conf irm the presence or yes Bisulfate light blue liq Lead() Nitrate The solution is cloudy and there are smallflakes. Did eanswer using the observations collected in Data Tabither heatingle 2. However when it was mixed with a base solution it turned pink. Boiling water + Absorb in paper towel and expose to sunlight. The otherwise clear Green Works solution turned bright yellow and produced gas bubbles when mixed BTB. If you need this or any other sample, we can send it to you via email. data table 1: chemical change observations Ammonia state of matter. Copyright 2019 - Hands-On Labs | http://holscience.com 2 / 10. 0000003003 00000 n your answer using the observations collected in Data Table 2. The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. HCI Hydrochlorlc Acld NaOH Sodium Hydroxide AgNOz Sllver Nitrate You can learn exactly what a Data Table 1: Investigation of the Weight of Carbon Step 1: Make Baking Soda Observations Vinegar 0000009972 00000 n First week only $4.99! When the chemicals in the soda mix with the This is a chemical reaction because it Study Resources. Is cutting a cake into 8 pieces a chemical or a physical change? 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. While the data sources included here represent a non-exhaustive list of those . When the can is opened the CO2 escaped the liquid causingbubbles, 8. 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 . ii. When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. trailer <<1F743DE7EAF4484B866163DC32EB514E>]>> startxref 0 %%EOF 113 0 obj <>stream It seems that when phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. Write the chemical equation for the reaction in well A6. If so, it most likely has sodium bicarbonate in it. Which of the four chemicals that was heated produced a physical change? 4. The reactant was sunlight which caused a chemical change. I expect BTB to turn orange with an acid and blue with a base. CuSO4 Phenolphthalein Explain your Other than some bubbles produced there was no significant changes occurred when BTB was added. When the starch was added to sodium hypochlorite NaOCI and potassium iodide KI it turned black. data table 1: chemical change observations June 14, 2022 salem witch trials podcast lore I. 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 7. A6 + Absorb in paper towel and expose to sunlight I got a very similar reaction while burning and heatingburning and turned a green color and turned black afte the Cu(NO3)2. I believe that this is the result of a chemical change. 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) Observation of Chemical Change | Blablawriting.com NaOCI and KI NaHCO3 and HCL-CO2 Formation of gas bubbles were immediate and consistent for some time. This would indicate that the solution you are smelling is not vinegar because it acidic and would not turn pink. 0000007380 00000 n Explain your answer using the 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. Lab 6 Worksheet | Chemistry I Laboratory Manual data table 1: chemical change observations 6. Show your work: Balance the following chemical equation: Is cutting a cake into 8 pieces a chemical or a physical change? Suppose a household product label says it contains sodium hydrogen carbonate Of the two remaining one turns slightly yellow while one remains blue. Sukmit You[ Data, Experiment 1 Acid NH3 and CuSO 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 result of mixing the chemicals sodium hypochlorite NaOCI and potassium iodide KI created a yellow brown substance, when starch was added it created the dark black color. Well Chemical #1 (4 Chemical 2. The purpose is to observe the macroscopic changes that these chemicals undergo. Get original paper in 3 hours and nail the task . 0000013464 00000 n b. By clicking "SEND", you agree to our terms of service and privacy policy. 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.