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20 Question (3 points) a See page 181 A method for determining the quantity of dissolved...
A method for determining the quantity of dissolved of oxygen in natural waters requires a series...
A method for determining the quantity of dissolved of oxygen in natural waters requires a series of redox reaction. Balance the following chemical equations in that series under the conditions indicated: a. In basic solution; Mn^2+(aq) + O_2(g) rightarrow MaO_2(g) b. In acidic solution; Mn^+2 O_2(s) + 2I^- rightarrow Mn^2+(aq) + I_2(s) c. In neutral solution; I_2(s) + S_2 O_3^2-(aq) rightarrow2I^-(a) + S_4O_6^2-(aq)
01 Question (2 points) See page 181 If a nail made of elemental iron [Fe(s) is...
01 Question (2 points) See page 181 If a nail made of elemental iron [Fe(s) is placed in an aqueous solution of a soluble palladium(II) salt [Pd?"all, the nail will gradually disappear as the iron enters the solution as Fed(aq) and palladium metal [Pd(s) forms. 1st attempt Part 1 (1 point) IW See Periodic Table O See Hint Is this a redox equation? Choose one: Yes No Part 2 (1 point) See Hi Balance and show the net ionic equation...
03 Question (3 points) See page 181 Ifa nail made of elemental iron [Fe() is placed...
03 Question (3 points) See page 181 Ifa nail made of elemental iron [Fe() is placed in an aqueous solution of a soluble palladium(II) salt[Pdad, the nail will gradually disappear as the iron enters the solution Ferlag and palladium metal [Pda] forms. 1st attempt Part 1 (1.5 points) See Periodic Table Is this a redox equation? se one o Yes O No Part 2 (1.5 points) Balance and show the net ionic equation that describes this reaction
3rd attempt See Periodic Table See Hint Fe(I) can be precipitated from a slightly basic aqueous...
3rd attempt See Periodic Table See Hint Fe(I) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the solution, which converts Fe(I) to insoluble Fe(II): 4Fe (OH) (aq)40H (aq) +0,(g) +2H,0(1) » 4Fe (OH)2(s) How many grams of O2 are consumed to precipitate all of the iron in 55.0 mL of 0.0950 MFe(II)? 2nd attempt <13/27 4 VIEW SOLUTION 18 OF 27 QUESTIONS COMPLETED SUBMIT ANSWER
10/31/19 See page 289 15 Question (1 point) Chromium(II)oxide reacts with silicon as indicated by the...
10/31/19 See page 289 15 Question (1 point) Chromium(II)oxide reacts with silicon as indicated by the balanced equation below. 2Cr,0,(s) +3Si(s) 4Cr(s) +3510,(s) When 155.0 g Cryog is reacted with 153.0 g Si, it is determined that Croy is the limiting reagent. 2nd attempt u See Periodic Table See Hint If the reaction begins with 155.0 grams of Cr2O3 and 153.0 grams of silicon, how many grams of the excess reactant will be used? gor Si used 35 OF 40...
01 Question (4 points) e See page 778 Answer the four questions below related to the...
01 Question (4 points) e See page 778 Answer the four questions below related to the spontaneous redox reaction that occurs when Cr(OH)3 reacts with NO3 to produce CrO4 and NO2 under basic conditions. 3rd attempt Part 1 (1 point) See Periodic Table See Hint Write the balanced equation, including states of matter, for the oxidation half-reaction.
no attempt penalty 4 Question (1point) e See page 584 When 1,3-pentadiene is protonated, a resonance-stabilized sec...
no attempt penalty 4 Question (1point) e See page 584 When 1,3-pentadiene is protonated, a resonance-stabilized secondarry allylic carbocation is formed. Draw the curved arrow notation below that shows the movement of electrons between the two major resonance structures. 1st attempt Jed See Periodic Table See Hint Feedback C TRY AGAIN VIEW SOLUTION <04/12 1 OF 12 QUESTIONS COMPLETED MacBook Pro
23 Question (1 point) See page 330 2nd attempt See Periodic Table See Hint Feedback Balance...
23 Question (1 point) See page 330 2nd attempt See Periodic Table See Hint Feedback Balance the neutralization reaction of phosphoric acid with magnesium hydroxide. States of matter are not needed. х. Не X х) Mg(он), — н,о H2PO43 23/27 C TRY AGAIN VIEW SOLUTION 20 OF 27 QUESTIONS COMPLETED
See page 665 17 Question 15 points) Draw an alkylbromide with proper stereochemistry that can be...
See page 665 17 Question 15 points) Draw an alkylbromide with proper stereochemistry that can be used to synthesize the given alkene as the exclusive product via an E2 reaction HCYCH 2nd attempt Feedback cht See Periodic Table See Hint Please draw all four bonds at chiral centers. < 1720 > + VIEW SOLUTION C TRY AGAIN Please draw all four bonds at chiral centers, Edit the structure below to be the precursor alkyl bromide to this alkene: C TRY...
01 Question (2 points) Below we see two representations of solutions: one that contains HFlad and...
01 Question (2 points) Below we see two representations of solutions: one that contains HFlad and the other that contains both HFlag and NaFlagl. To simplify the images, only the predominant species are shown. The solvent water molecules are not shown 2nd attempt Part 1 (1 point) See Periodic Table See Hint This solution contains only HF (ac). Write the proton transfer equilibrium reaction. Include states of matter. O OF 13 QUESTIONS COMPLETED 01/13 > + VIEW SOLUTION SUBMIT ANSWER...
A method for determining the quantity of dissolved of oxygen in natural waters requires a series of redox reaction. Balance the following chemical equations in that series under the conditions indicated: a. In basic solution; Mn^2+(aq) + O_2(g) rightarrow MaO_2(g) b. In acidic solution; Mn^+2 O_2(s) + 2I^- rightarrow Mn^2+(aq) + I_2(s) c. In neutral solution; I_2(s) + S_2 O_3^2-(aq) rightarrow2I^-(a) + S_4O_6^2-(aq)
01 Question (2 points) See page 181 If a nail made of elemental iron [Fe(s) is placed in an aqueous solution of a soluble palladium(II) salt [Pd?"all, the nail will gradually disappear as the iron enters the solution as Fed(aq) and palladium metal [Pd(s) forms. 1st attempt Part 1 (1 point) IW See Periodic Table O See Hint Is this a redox equation? Choose one: Yes No Part 2 (1 point) See Hi Balance and show the net ionic equation...
03 Question (3 points) See page 181 Ifa nail made of elemental iron [Fe() is placed in an aqueous solution of a soluble palladium(II) salt[Pdad, the nail will gradually disappear as the iron enters the solution Ferlag and palladium metal [Pda] forms. 1st attempt Part 1 (1.5 points) See Periodic Table Is this a redox equation? se one o Yes O No Part 2 (1.5 points) Balance and show the net ionic equation that describes this reaction
3rd attempt See Periodic Table See Hint Fe(I) can be precipitated from a slightly basic aqueous solution by bubbling oxygen through the solution, which converts Fe(I) to insoluble Fe(II): 4Fe (OH) (aq)40H (aq) +0,(g) +2H,0(1) » 4Fe (OH)2(s) How many grams of O2 are consumed to precipitate all of the iron in 55.0 mL of 0.0950 MFe(II)? 2nd attempt <13/27 4 VIEW SOLUTION 18 OF 27 QUESTIONS COMPLETED SUBMIT ANSWER
10/31/19 See page 289 15 Question (1 point) Chromium(II)oxide reacts with silicon as indicated by the balanced equation below. 2Cr,0,(s) +3Si(s) 4Cr(s) +3510,(s) When 155.0 g Cryog is reacted with 153.0 g Si, it is determined that Croy is the limiting reagent. 2nd attempt u See Periodic Table See Hint If the reaction begins with 155.0 grams of Cr2O3 and 153.0 grams of silicon, how many grams of the excess reactant will be used? gor Si used 35 OF 40...
01 Question (4 points) e See page 778 Answer the four questions below related to the spontaneous redox reaction that occurs when Cr(OH)3 reacts with NO3 to produce CrO4 and NO2 under basic conditions. 3rd attempt Part 1 (1 point) See Periodic Table See Hint Write the balanced equation, including states of matter, for the oxidation half-reaction.
no attempt penalty 4 Question (1point) e See page 584 When 1,3-pentadiene is protonated, a resonance-stabilized secondarry allylic carbocation is formed. Draw the curved arrow notation below that shows the movement of electrons between the two major resonance structures. 1st attempt Jed See Periodic Table See Hint Feedback C TRY AGAIN VIEW SOLUTION <04/12 1 OF 12 QUESTIONS COMPLETED MacBook Pro
23 Question (1 point) See page 330 2nd attempt See Periodic Table See Hint Feedback Balance the neutralization reaction of phosphoric acid with magnesium hydroxide. States of matter are not needed. х. Не X х) Mg(он), — н,о H2PO43 23/27 C TRY AGAIN VIEW SOLUTION 20 OF 27 QUESTIONS COMPLETED
See page 665 17 Question 15 points) Draw an alkylbromide with proper stereochemistry that can be used to synthesize the given alkene as the exclusive product via an E2 reaction HCYCH 2nd attempt Feedback cht See Periodic Table See Hint Please draw all four bonds at chiral centers. < 1720 > + VIEW SOLUTION C TRY AGAIN Please draw all four bonds at chiral centers, Edit the structure below to be the precursor alkyl bromide to this alkene: C TRY...
01 Question (2 points) Below we see two representations of solutions: one that contains HFlad and the other that contains both HFlag and NaFlagl. To simplify the images, only the predominant species are shown. The solvent water molecules are not shown 2nd attempt Part 1 (1 point) See Periodic Table See Hint This solution contains only HF (ac). Write the proton transfer equilibrium reaction. Include states of matter. O OF 13 QUESTIONS COMPLETED 01/13 > + VIEW SOLUTION SUBMIT ANSWER...
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