Beyond Labz 2.0 Assessment (1) (1)

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Dallas County Community College *

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1411

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Chemistry

Date

Jan 9, 2024

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pdf

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12/10/23, 4:35 PM Beyond Labz 2.0 Assessment https://worksheets.beyondlabz.com/multiembedq.php?id=5425-5427-5428-5429-5430-5431 1/3 Click here to erase all data entry on this page

12/10/23, 4:35 PM Beyond Labz 2.0 Assessment https://worksheets.beyondlabz.com/multiembedq.php?id=5425-5427-5428-5429-5430-5431 2/3 Writing Balanced Precipitation Reactions In this activity, you will go into the virtual laboratory and perform a series of precipitation reactions using Ag + , Pb 2+ , and Sb 3+ . After observing the reactions, you will write the net ionic equations representing these reactions and then balance them. In this video we'll show you how to use the inorganic lab: If at any point you need to exit the lab and come back at another time, click the Save Lab button below. That will save your progress. Then when you re-enter the lab, open the Presets menu and click on My Saved Labs. You can click the latest link there to start at the point where you left off. 1. To start this activity, click this link for Writing Balanced Precipitation Reactions . The lab will load in a new tab. Click back to this tab to read further instructions and complete the questions below. You can follow along with the instructions below in the Procedures tab in the lab. 2. Drag a test tube from the box and place it in the clamp on the ring stand (or you can double click it to move it into position). You can then click on the bottle of Ag + ion solution (it is AgNO 3 ) on the shelf to add it to the test tube. Then drag the test tube to the blue test tube rack. Repeat for Pb 2+ (Pb(NO 3 ) 2 and Sb 3+ (Sb(OH) 3 ). 3. Moving your mouse over each test tube in the test-tube rack will allow you to identify it in the Live Data display. You can also click in the box at the top of the image of a test tube in Live Data in order to add a label to the test tube. Place the test tube containing the Ag + solution in the clamp on the ring stand. Click on the Na 2 CO 3 reagent bottle to add it to the test tube in the clamp. What color is the precipitate? Red/Pinkish 02:22 ↑

12/10/23, 4:35 PM Beyond Labz 2.0 Assessment https://worksheets.beyondlabz.com/multiembedq.php?id=5425-5427-5428-5429-5430-5431 3/3 Write a correct balanced net ionic equation for the reaction. Use the _ symbol to create a subscript and ^ for superscripts. You can see a preview of your equation as you type it. 2Ag + (aq)+CO 3 2− (aq)→Ag 2 CO 3 (s) When you have finished writing the equation and making your observations, place the test tube containing the precipitate in the red disposal bucket. 4. Place the test tube containing the Pb 2+ solution in the clamp in the ring stand. Click on the NaCl reagent bottle to add it to the test tube in the stand. What color is the precipitate? white Write a correct balanced net ionic equation for this reaction. Use the _ symbol to create a subscript and ^ for superscripts. You can see a preview of your equation as you type it. Pb 2+ (aq)+2Cl − (aq)→PbCl 2 (s) When you have finished writing the equation and making your observations, place the test tube containing the precipitate in the red disposal bucket. 5. Place the test tube containing the Sb 3+ solution in the clamp. Click on the Na 2 S reagent bottle to add it to the test tube. Note that the antimony is not soluble and you will have a double displacement reaction. What color is the precipitate? orange Write a correct balanced net ionic equation for the reaction. Use the _ symbol to create a subscript and ^ for superscripts. You can see a preview of your equation as you type it. 4Sb3+(aq)+5S2−(aq)→2Sb2S5(s)

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