Homework Answers
Answer
4. The dissolution of ZnCO3 is facilitated by the decomposition of carbonic acid to CO2 and H2O
Explanation
The balanced equation for the reaction is
ZnCO3(aq) + 2H+ (aq) -------> Zn2+ (aq) + H2CO3(aq)
H2CO3(aq) --------> H2O(l) + CO2(g)
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Which statement is not true for the dissolution of ZnCO3(s) in acid: 1. The dissolution of...
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The excess hydroxide ions must be neutralized with oxalic acid. The oxalic acid will also neutralize the hydroxide ions of the iron (III) hydroxide precipitate, releasing the iron(III) ion back into solution. Oxalic acid is chosen so that no additional anions will be present to interfere with the formation of the complex. The excess oxalate ions convert all iron present into a soluble complex ion with three oxalate ions attached to the iron(III) ion. Fe(OH)3 (s) + (aq) → _()...
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What is the general class of each test reaction in the introduction? Precipitation? Acid-Base? Oxidation eduction?...
What is the general class of each test reaction in the introduction? Precipitation? Acid-Base? Oxidation eduction? anoina to aizy ona svidstils Reaction Class 1 2 iliw 15 TO15192do art sshommua bns nosgol rond dass 101 12575 gbubnium oY noi de lo enor Som 10 910 w II woy Xd on abian aningstid on naloga uzib 3 OOH 4 5 DHET 6 7 SET adus 00 9 Complex ion formation 10 11 No reaction 12 13 14 Combination 15 16 17...
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Carbon dioxide dissolves in water to form carbonic acid, which is primarily dissolved CO2. Dissolved CO2...
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The excess hydroxide ions must be neutralized with oxalic acid. The oxalic acid will also neutralize the hydroxide ions of the iron (III) hydroxide precipitate, releasing the iron(III) ion back into solution. Oxalic acid is chosen so that no additional anions will be present to interfere with the formation of the complex. The excess oxalate ions convert all iron present into a soluble complex ion with three oxalate ions attached to the iron(III) ion. Fe(OH)3 (s) + (aq) → _()...
Question 46 1 pts Pick the TRUE statement about the cardiovascular system. O In an ECG trace, atrial repolarization isn't seen due to the QRS 'covering" it up The venous valves contract to push blood back to the heart In a person at rest, most of the blood volume is within the elastic arteries The diastolic blood pressure is the ventricular pressure when the heart is relaxed Question 45 1 pts In venous blood, most of the CO2 is transported.......
Which statement(s) is(are) true about carbonic anhydrase enzyme? A. Carbonic anhydrase enzyme is involved in the production of chemicals that are important for controlling the blood pH of humans, B. Coordination site of the metal in carbonic anhydrase aquires a square planar geometry C. Histidine groups attached to the metal get polarized during the catalytic process. A and B A and C Band C B A QUESTION 7 Determine the d electron configuration of [Fe(NH 3) 61 3* complex (tag)Pleglo...
21. What are the characteristics of the carbonic acid-bicarbonate buffer system (select all that apply? a CO2 is eliminated by the lungs b. Neutralizes HCl acid to yield carbonic acid and salt c. H2CO3 formed by neutralization dissociates into H2O and CO2 d. Shifts H+ in and out of cell in exchange for other cations such as potassium and sodium e. Free basic radicals dissociate into ammonia and OH-, which combines with Ho to form water 22. What are characteristics...
What is the general class of each test reaction in the introduction? Precipitation? Acid-Base? Oxidation eduction? anoina to aizy ona svidstils Reaction Class 1 2 iliw 15 TO15192do art sshommua bns nosgol rond dass 101 12575 gbubnium oY noi de lo enor Som 10 910 w II woy Xd on abian aningstid on naloga uzib 3 OOH 4 5 DHET 6 7 SET adus 00 9 Complex ion formation 10 11 No reaction 12 13 14 Combination 15 16 17...
→ AN MOVIY ante questi IT WIJ Question 1 Which statement is true? According to the Arrhenius definition, O a base is a proton acceptor O a base is a proton donor an acid produces H ions in aqueous solutions an acid produces OH ions in aqueous solutions a base acts as a solvent A Moving to another question will save this response. rch o Bi e Ê ta ai ở do N ssions » A Moving to another question...
vols " statement about hemoglobin is not true? A) it is globular b) it contains helix- loop-helix c) it has three subunits d) it has heme groups 3. The molecule which binds in the central cavity of hemoglobin when it is deoxygenated is: a) CO2 b) heme c) BPG d) all of these 4. The transition of hemoglobin from its T-form to its R-form results in: a) Loss of BPG b) Does not result in release of CO2 c) cooperative...
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