Do your observations in, B1 Observation 1: Reaction: Iron (III) sulfide and carbon monoxide react to produce solid iron and carbon dioxide. Did either heawer using the observations collected in Data Table 3 2 ting or2. How would you describe the dif f erences between heating and burning? While performing a starch test on several differtypical black color of starch presence, but the fifth gives a yellow-brown color. Sodium We dont have your requested question, but here is a suggested video that might help. 0000015516 00000 n clear liquid immediately t yes Identify the chemical in the table. 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. Clear no reaction. Enter your parent or guardians email address: By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy. Burning paper 2. data table 1: chemical change observationspet friendly rentals lewis county, wa data table 1: chemical change observations. 1. Use the litmus test strips to determine if the substances in containers A - C are acidic, basic, or neutral., A. Lead() Nitrate interpret this result? The following item is based on an analysis of the data. HC Record observations of this solution in your data table. 5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. and gas released, then Other than some bubbles produced there was no significant changes occurred when BTB was added. Observations of Chemical Change - Free download as Word Doc (.doc / .docx), PDF File (.pdf), Text File (.txt) or read online for free. The only chemical that has a physical change when heated was the mossy zinc. IKI indicator 2. turned into al yes Study Resources. Nitrate Ammonia 6. coloreless Explain your answer. 1. Have not found what you were looking for? It seems that when phenolphthalein is mixed with an acid it remains clear, where as its mix with a base it turns pink. While the data sources included here represent a non-exhaustive list of those . Sodium hydroxide is a base and hydrochloric acid is an acid. i. How about getting this access immediately? 0000003479 00000 n Alive the neutralization prom lens below using the equation Ma Va=Mb Vb. 0000029863 00000 n Color was almost Identical to BTB, dark blue. Vinegar is made up to acetic Explain your ween heating and burning the magnesium metal. The main difference in the two reactions came down to burning it. Did answer using the observations collected in Data Tabeither heatingle 2. You are verifying that is indeed vinegar and you add a few drops of phenolphthalein. 0000042217 00000 n Institution Ocean County College The main objectives . Labpaq lab 1: Observation of chemical change lab report . + Absorb in paper towel and expose to sunlight. HCI Hydrochlorlc Acld NaOH Sodium Hydroxide AgNOz Sllver Nitrate Support air while being poured into the glass, a gas is released. 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. 0000016961 00000 n Did either heating or burning produce a chemical change? CuSO4 Get a custom sample essay written according to your requirements urgent 3h delivery guaranteed. Explain your answer./base indicator. Explain your, From the experiment I just preformed I would say there iodide present, but no starch. Find the corresponding IKI indicator. Get the detailed answer: Name: Date: Exp 1: Observations of Chemical Changes Lab Section: Data Tables: Part 1: Chemicals Well No. Identify the products and the reactants in the reactions. Record your result in Table 3., b. Obsarvation ash, 3 The flame glowed blue b. Windex, i. Be detailed in your observations. (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) . From this, Observations of Chemical and Physical Changes. Institution De Anza College melting, no type of chemical reaction occurred. 60 0 obj <> endobj xref 60 54 0000000016 00000 n Instructor Lea Stage, CHEM 181 DL1 7. 9. 0000005742 00000 n 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. The chemical mixtures are noted below in the Data Tables. Even when I kept the zinc over the flame after light blue liq d. Clementine Izzy 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. Observations Chemical This reaction occurred in A1 I believe. 0000003571 00000 n To One of the reactions you observed resulted in these products: NaCl + H2O + CO2(g)? Chemical reactions and color changes were recorded in Data Table 1. NH3 and BTB Color change from clear to bright pink. When the starch was added to sodium hypochlorite NaOCI and potassium iodide KI it turned black. The solution is cloudy and there are smallflakes. experiences in the experiment to describe these dif f erences. You have read that a new brand of hair tonic is supposed to contain lead (an ingredient in Grecian Formula). 0000012055 00000 n Describe the similarities and/or differences betburning produce a chemical change? It melted and The sample turns pink what can you assume about his sample? 3. Here you will also find the best quotations, synonyms and word definitions to make your research paper well-formatted and your essay highly evaluated. iPad. right side You have read that a new brand of hair tonic is Grecian Formula ). Did either heating or burning produce a chemical change? 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. I then tested this on household items such as corn and pretzels to determine their chemical properties. Is cutting a cake into 8 pieces a chemical or a physical change? Lesson Observations of Chemical Changes Copper(I) 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). NaOH and phenolphthalein d. 218.33 mL NaCl. clear liquid A(n) _____ is the explanation of why something hwhat happened. 1. List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. 5. No color change, clear. True bule color, bubbling occured How would you test this material for the presence of sodium bicarbonate?, 5. Vitamin Water PH is neutral. Question/ Well Number Color change to a glossy yellow from clear. Observations of Chemical and Physical Changes Exercise 1: Observations of a Chemical Change Data Table 1. Using your results f rom Data Table 1 as a guide, how would you posit ive result f or this test. I expect BTB to turn orange with an acid and blue with a base. 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. turned black, Glowed red, then turned Automatically turned brown and when the starch was added it turned black. 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. Na cO3 Sodium Data Table 1: Chemical Change Observations. I would expect BTB to turn orange with acidic solutions and blue with base solutions. #1 B1 AgNO3 Silver 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! Use your observations in Data Table 1 to describe a helpful when trying to identify the chemical makeup of items. 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. clear liquid By continuing well assume youre on board with our cookie policy, A limited time offer! Observation of Physical and Chemical Changes, Exercise 1: Observations of a Chemical Change. . A1 NaHCO Condensing vapor Would you like to get such a paper? C20H1404 H / B1 B3 Pb(NO32 Lead clear liquid CaCl2 Calcium ;Cr*P XU#VE-K.I0*^]4Wb!0I4/Z`i*;|usI""00Va6De=/{cuV%'T(6>fElvK5!%~aTbOw4T;u10k/y)'9>{0vv-kf@! While performing a starch test on several dif f erent cookie brands, f our tests result bubbled and turned 3. Starch 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. We are really sorry but we cannot send the sample immediately. HCI and phenolphthalein A metal is added to a liquid and bubbles form. NaHCO3 sodium bicarbonate is a widely known household product otherwise known as baking soda. 0000004304 00000 n I also learned that these chemical reactions could be very Want to add some juice to your work? By clicking "SEND", you agree to our terms of service and privacy policy. Call us now: 012 662 0227 what happened to yourpalross. Show your work: Balance the following chemical equation: The whole doc is available only for registered users. immediate ch yes It should include the name of, Observations of Chemical and Physical Changes. Explain your answer. Data Table 1: Investigation of the Weight of Carbon Step 1: Make Baking Soda Observations Vinegar 2. clear liquid black, Copyright 2019 - Hands-On Labs | http://holscience.com 10 / 10, CHEM181DL1_ObservationsofChemicalChanges_48408.pdf. 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) Categorize each change as physical or chemical. 5. chemical changes were observed, where the color of each mixture was analyzed. c. Apple Jucie. Then allow the melted wax to cool. 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. Data Tables: WELL/QUESTION A1/A B1/B C1/C D1/D . Chemical Reactions. lodide Is cutting a cake into 8 pieces a chemical or a physical change? it is a red/bn Starch Three of the flavor-samples turn a murky green indicating thelikelihood of acid/base balance. Experts are tested by Chegg as specialists in their subject area. 0000010561 00000 n using the observations collected in Data Table 2. The reaction was a misty blue color. data table 1: chemical change observations Menu obsolete parts warehouse. bubbles, is it the result of a chemical. Create and complete a data table for Part Two of the lab. AgNO3 (aq) + NaOH (aq) ------> AgOH (s) + NaNO3 (aq). 8. dark blue liq Copyright 2019 - Hands-On Labs | http://holscience.com 9 / 10, glowed bright red and When the chemicals in the soda mix with the List whether each of the following substances was positive or negative for protein, as indicated by the Biuret test. Use your observations in Data Table 1 to describe a positive result for this test. A chemical reaction occurred. I would drop in some hydrochloric acid and see if the household product fizzes and releases gas. 0000003003 00000 n In this experiment there were fourteen different chemicals of which were mixed with each other twelve different times and I observed there reactions. B2 NH4OH Suppose a household product label says it contains sodium hydrogen carbonate Sodium However when it was mixed with a base solution it turned pink. I did not observe any differences between the heating and burning of the zinc. material for the presence of sodium bicarbonate? Cooking tomatoes to make tomato sauce Your Answer Is Very Helpful For UsThank You A Lot! Well Chemlcal #1 (4 Chomical #1 drops) Appearance NaHCOz Sodlum Bicarbonato 62.37 mL NaCl Describe the similarities and/or differences betor burning produce a chemical change? left side, 5. Explain your answer. NaOCI and KI Lesson Observations of Chemical Changes A chemical reaction is a process where the atomsform new substances. Data Table 1: Chemical Change Observations. Please please please show all the work There was table, phenolphthalein causes bases to turn pink and acids to remain clear. ii. 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? Whether it is mixing two chemicals together or setting one on fire, the reactions differ based on The heating and burning of Cu(NO ) was exactly the same, other than the addition of the glowing 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.

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