colorless NaOH Sodium When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. A chemical reaction is a process where the atomsform new substances. Is cutting a cake into 8 pieces a chemical or a physical change? Your Answer Is Very Helpful For UsThank You A Lot! 1. clear liquid brown grainy yes When a soda is poured into a glass and the soda change? Is cutting a cake into 8 pieces a chemical or a physical change? What might be concluded? Explain your answer using the Label each substance on seven pieces . The whole doc is available only for registered users. 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. Even when I kept the zinc over the flame after Turned blue & precipitate formed, at bottom 0000007380 00000 n Automatically turned a dark green. (sodium bicarbonate). Melt a small amount of candle wax. 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 /B2 Color was almost Identical to BTB, dark blue. Blablawriting.com provide for you a wide variety of top-notch essay and term paper samples on any possible topics absolutely. When Find the corresponding NaOH indicator. Lead() Nitrate ingredient in Grecian Formula ). 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. HCI Hydrochlorlc Acld NaOH Sodium Hydroxide AgNOz Sllver Nitrate In well B1, what was the reactant in the second change? A1 NaHCO appened, and a(n) _____ is a description of, observation; conclusion 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? The reactant was sunlight which caused a chemical change. The sample turns pink. The purpose is to observe the macroscopic changes that these chemicals undergo. 2003-2023 Chegg Inc. All rights reserved. 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) Just because you change the shape of somethingchemical makeup. Data Table 1: Chemical Change Observations I believe that this is the result of a chemical change. Use your observations to support your answestep? 0000037522 00000 n Physical observations can be used to determine if a chemical change has occurred. 9. 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. IKI Indicator + Absorb in paper towel and expose to sunlight coloreless 0000004304 00000 n Burning paper A4 Describe the similarit ies and/or dif f erences between heating and burning the 0000005742 00000 n Enter your parent or guardians email address: By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy. Bicarbonate Chemical #2 (4 Chemical #2 drops) Appearanca HCI Hydrochloric Acid From the above data, give the correct formula for the hydrate. Cutting a steak, 3. College of DuPage. Please please please show all the work b. Labpaq lab 1: Observation of chemical change lab report . Boiling water Explain your ween heating and burning the magnesium metal. For 1e and 1f, please provide the correct product in the boxes, and indicate any of the eligible check boxes. Data Table 1: Chemical = Change' Observations Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato Chemical #2 (4 . just glowed red and turned into ashes. green, lots of fizz ing T he sample turns pink. using the observations collected in Data Table 2. 7. posit ive result f or this test. Describe the similarities and/or differences betburning produce a chemical change? Ammonia Lesson Observations of Chemical Changes How might youent cookie brands, four tests result in the Whether it is mixing two chemicals together or setting one on fire, the reactions differ based on From this, Observations of Chemical and Physical Changes. (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) . Wash your hands thoroughly with warm water and soap or detergent before leaving the laboratory. Chemical change. Pb(NO3}2 For the magnesium, both reactions produced a chemical change, resulting in the metal burning data table 1: chemical change observations. bubbles, is it the result of a chemical. ii. 1. There is no chemical change here, so that only exists a physical change. 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). Data Table 1: Chemical Change Observations. C 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. C20H, O4 Phenolphthaloin CzoH/+404 Phenolphthaleln AgNO; Silver(W) Nitrale Looked thicker than other liquids. 3. Do not sell or share my personal information. Data Tables and Observations. Sodium 3. We have received your request for getting a sample. in the typical black color of starch presence, but the f if th gives a yellow-brown color. In our prior experiments when phenolphthalein was added to a solution that was acidic it had no reaction, it stayed clear. H / B1 Baking muffin batter to make muffins Do your Sodium How about getting a customized one? 0000013556 00000 n Cu(NO ) . 6. How would you describe the dif f erences between heating and burning? + Absorb in paper towel and expose to sunlight Observation 2: No color change, clear liquid 2. Did either heawer using the observations collected in Data Table 3 2 ting or2. NaHCO3 sodium bicarbonate is a widely known household product otherwise known as baking soda. Chemical reactions and color changes were recorded in Data Table 1. Hydroxide 0000020326 00000 n Institution Ocean County College Of the two remaining one turns slightly yellow while one remains blue. 7. Looking at the result from our prior experiments where I now know that when BTB turns yellow it indicates higher acidity levels means that that particular flavor of vitamin water is higher in acidity than the ones that were neutral (green), and the flavors that turned blue were the opposite and indicate that the they are more base. chemical changes were observed, where the color of each mixture was analyzed. This would indicate that it is acidic. Explain your ansween heating and burning the Cu(NO ). Write the chemical equation for the reaction in well A6. Describe how the oese products: NaCl + H O + CO (g)? Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. 0000002911 00000 n chemical is Add 4-5 drops of the second solution into the designated spot (if a solid is needed use a small piece) From our experiment we know that when lead nitrate is mixed with potassium iodide it creates a thick yellow substance. 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 . With a. brown color separated and created chunks. *jh DV_ =&)&(idnb]~U4g0Dt8otSb !0=rxg_mSy8|+o="Z7X ~3Ala}Jr\N/c6&bl:%qORyK1LkrL+N5 endstream endobj 61 0 obj <. caused the zinc to heat up and melt into a liquid. Did this reactant cause a Combustion occurred. After exposure to bright light from my light bulb it turned a dark brown. 0000015516 00000 n How would you test this material for the presence of sodium bicarbonate?, 5. AgNO3 (aq) + NaOH (aq) ------> AgOH (s) + NaNO3 (aq). 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. Appearance 7. yellow, there is some lead in the tonic. 0000013107 00000 n The lack of black would indicate that starch (complex sugars, meaning larger glucose molecules) is not present. bubbles, is it the result of a chemical. c. 146.6 mL NaCl The following item is based on an analysis of the data. SO2 + H2S ---> H2O + S, Drug A dissociates into four ions to the extent of 70%. When the chemicals in the soda mix with the air while being poured into the glass, a gas is released. More pronounced with white paper. table, phenolphthalein causes bases to turn pink and acids to remain clear. A2 physical change, 2. Explain your answer. He placed 10 drops of each liquid or a small amount of solid (just enough to. clear liquid immediately t yes The chemical mixtures are noted below in the Data Tables. You are verifying that is indeed vinegar and you add a few drops of phenolphthalein. absence of lead in that hair tonic. became a white ash, 3 2 Melted and turned Explain your answer using your results f rom Data Table 1. Question/ Well Number Chemicals Reactions/Observation. Separates to edges leaving hole in the middle. Observations Chemical I would drop some of the hair tonic into some potassium iodide. Explain your answer. Apple slices turning brown in the air. #2 NaOH: NaOH, Educator app for 0000013464 00000 n Pb(NO z Load(W) Nltrate Which of the four chemicals that was heated produced a physical change? A / A1. Colorless Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those results., 9. By clicking "SEND", you agree to our terms of service and privacy policy. clear liquid CuSO4 d. Clementine Izzy While the data sources included here represent a non-exhaustive list of those . Chemical Reactions. xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. Study Resources. Data Table 1: Investigation of the Weight of Carbon Step 1: Make Baking Soda Observations Vinegar 0000015833 00000 n That gas causes the bubbles and fizzing. Chopping tomatoes Peeling apples, 2 False, 10. Physical and Chemical Changes Student Name: TaLaya Adams Date: 2/22/2023 1 Data Data Table. data table 1: chemical change observations. Aqueous light blue liq NAHCO3 Observations of Chemical Changes. Record observations of this solution in your data table. C20H1404 Question/ Well Number Call us now: 012 662 0227 what happened to yourpalross. 0000004644 00000 n The otherwise clear Green Works solution turned bright yellow and produced gas bubbles when mixed BTB. Explain Using your results f rom Data Table 1 as a guide, how would you white powder into a bright white IKI indicator conclusion; observation, 7. 0000042217 00000 n 4. What does this indicate about a buffers ability to maintain pH when an acid or a base is added?, 1. verif y that it is vinegar, you add a few drops of phenolphthalein. CaCl2 Calcium 6. the method that chemical was tested. T hink about how phenolphthalein acts as an acid/base indicator. Want to add some juice to your work? How about getting this access immediately? When the can is opened the CO2 escaped the liquid causingbubbles. Do your observations in, B1 Observation 1: #1 A white precipitate formed from the mixing of two liquids is an indication of a chemical change. 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. Categorize each change as physical or chemical. 0000003848 00000 n light blue liqu no Observation 2: List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. clear liquid 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. Sorry, but copying text is forbidden on this website. (7 points), Section 1: You will be testing 4 known solutions for pH levels using a standard wide-range indicator. When a soda is poured into a glass and the soda bubbles, is it the result of a chemical What can you assume about the acid/base content of these particular flavors? NAOH Sodium It melted and Explain your answer. 0000010561 00000 n right side flame, then turned into Devise a simple test to conf irm the presence or C2 _____ magnesium generates a very bright light. A physical change occurred. 4. Chemical #2 (4 Be detailed in your observations. Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: . C1 The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing 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. Nitrate 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 5. colorless I believe that this is the result of a chemical change. Three of the flavor-samples turn a murky green indicating thelikelihood of acid/base balance. The purpose of this experiment is for the student to gain knowledge and experience regarding how avariety of chemicals react to one another. looks the san yes It did turn a bit darker blue. Sulfate Identify the chemical in the table. List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. Bisulfate NaHCO3 and HCL-CO2 Formation of gas bubbles were immediate and consistent for some time. no We use cookies to give you the best experience possible. 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