Homework Answers
Here Zn is being oxidized by NH4Cl from oxidation state of 0 in Zn in reactants to oxidation state of+2 in ZnCl2 in products so NH4Cl is oxidizing agent.
Option b is answer
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In a acid dry cell battery for which the reaction is Zn +2 NH CI+ 2...
Question 1 1 pts In the dry cell battery below, what element is being reduced during...
Question 1 1 pts In the dry cell battery below, what element is being reduced during use? Zn(s)+2 MnO2(s) + 2 NH4 (aq)Zn2* (aq) + Mn2O3 (s) + 2 NH3 (aq) + H20(l) hydrogen manganese oxygen nitrogen zinc
Question 1 1 pts In the dry cell battery below, what element is being reduced during...
Question 1 1 pts In the dry cell battery below, what element is being reduced during use? Zn(s)+2 MnO2(s) + 2 NH4 (aq)Zn2* (aq) + Mn2O3 (s) + 2 NH3 (aq) + H20(l) hydrogen manganese oxygen nitrogen zinc
6. Write the equilibrium expression for the reaction Zn" (aq) + 2 NH3(aq) Sny Zn(NH) (aq)...
6. Write the equilibrium expression for the reaction Zn" (aq) + 2 NH3(aq) Sny Zn(NH) (aq) a. K = [Zn**] + 2ỊNH,]+[Zn(NH, [Zn(NH,) d. K = [ZnJINH, [Znº1+ 2ỊNH,] [Zn(NH, e. K = [Zn(NH, 1-[Zn - 2(NH, J [Zn” JINH 1 c. K [Zn(NH, 1.
please answer all of the questions!! 1. Which substance is reduced in the following reaction (1...
please answer all of the questions!!
1. Which substance is reduced in the following reaction (1 point): 2Al(s) + 3C12(g) → 2AlCl3(s) a. Al b. Cl2 c. AICI: d. None 2. Which substance is the reducing agent in the following reaction (1 point): 8H+ (aq) + MnO4 (aq) + 5Fe2+ (aq) → 5Fe3+ (aq) + Mn2+ (aq) + 4H2O(1) a. Fe2+ b. Mn04 c. H+ d. H20 3. Which substance is oxidized in the following reaction (1 point): Fes(s) +...
7) For the chemical reaction NH3(aq) + HCl(aq) → NH- (aq) + CH(aq) the acid and...
7) For the chemical reaction NH3(aq) + HCl(aq) → NH- (aq) + CH(aq) the acid and conjugate buse are a) NH3 (acid); NHÀ (Conjugate base) b) NH, (acid), CI (conjugate base) c) HCI (acid); NH; (conjugate base) d) HCI (acid); NHA (conjugate base) e) HCI (acid), CI (conjugate base)
Which of the following is true for reaction Cu + ZnCl2 —> CuCl2 + Zn ?...
Which of the following is true
for reaction Cu + ZnCl2 —> CuCl2 + Zn ? Write the oxidation
numbers of each species above their formula and write a
half-reaction showing what happens to both the Cu and Zn2+. Please
show work, I want to learn how to do this!
Which of the following is true for reaction Cu + ZnCl2 - numbers of each species above their formula, and write a half-reaction showing what happens to CuCl2 + Zn?...
The overall reaction of a mercury cell is Zn(s) + HgO(s) + H2O(l) → Zn(OH)2(s) +...
The overall reaction of a mercury cell is Zn(s) + HgO(s) + H2O(l) → Zn(OH)2(s) + Hg(l) If a mercury cell contains 0.100 g of HgO, and the HgO is the limiting reagent, the time (days) for which a current of 1.00 × 10-5 A could flow from the cell is A. 103 B. 20.6 C. 309 D. 51.2 E. 6.9
6 Which of the following chemical equations is an example of an acid-base reaction? ed Select...
6 Which of the following chemical equations is an example of an acid-base reaction? ed Select one: a. 2 HCl (aq) +Po(NO)2 (aq) PbC2 (s)+2 HNOs (aq) b. HF (aq) NH3 (ag) NH&F (aq) c. 2 HCl (aq) + Zn (s) → H2 (g) + ZnCl2 (aq) d. Ba(OH)2 (aa) + K2S04 (aq) → Baso, (s) + 2 KOH (aq) e. 3 NaOH (aq) + AIClg (aa)-Al(OH)3 (s) + 3 NaCl (aq) out of ag ion
1. For the oxidation-reduction reaction Zn(s) + 2HNO3 (aq) → H2(g) + Zn(NO3)2 (aq) Hint: HNO3...
1. For the oxidation-reduction reaction Zn(s) + 2HNO3 (aq) → H2(g) + Zn(NO3)2 (aq) Hint: HNO3 a) provide equation for the oxidation half-reaction: b) provide equation for the reduction half-reaction: In the given equation above or in your answers to a) and b): c) label the substance which is oxidizing agent, d) label the substance which is reducing agent.
help with these 3 please? 18. Of the reactions below, which one is a precipitation reaction?...
help with these 3 please?
18. Of the reactions below, which one is a precipitation reaction? a. NH4Cl → NH3 + HCI b. 2Mg + O2 + 2MgO c. 2N2 + 3H2 + 2NH3 d. 2CH4 +402 2002 + 4H20 e. Ca(NO3)2 + Na2S → CSS(s) + 2NaNO3 19. In the equation, CrO42(aq) + H2O(l) → CrO2(aq) + OH-(ag), the change in the oxidation number of the chromium atom is a. decrease by six units b. decrease by three units...
Question 1 1 pts In the dry cell battery below, what element is being reduced during use? Zn(s)+2 MnO2(s) + 2 NH4 (aq)Zn2* (aq) + Mn2O3 (s) + 2 NH3 (aq) + H20(l) hydrogen manganese oxygen nitrogen zinc
Question 1 1 pts In the dry cell battery below, what element is being reduced during use? Zn(s)+2 MnO2(s) + 2 NH4 (aq)Zn2* (aq) + Mn2O3 (s) + 2 NH3 (aq) + H20(l) hydrogen manganese oxygen nitrogen zinc
6. Write the equilibrium expression for the reaction Zn" (aq) + 2 NH3(aq) Sny Zn(NH) (aq) a. K = [Zn**] + 2ỊNH,]+[Zn(NH, [Zn(NH,) d. K = [ZnJINH, [Znº1+ 2ỊNH,] [Zn(NH, e. K = [Zn(NH, 1-[Zn - 2(NH, J [Zn” JINH 1 c. K [Zn(NH, 1.
please answer all of the questions!!
1. Which substance is reduced in the following reaction (1 point): 2Al(s) + 3C12(g) → 2AlCl3(s) a. Al b. Cl2 c. AICI: d. None 2. Which substance is the reducing agent in the following reaction (1 point): 8H+ (aq) + MnO4 (aq) + 5Fe2+ (aq) → 5Fe3+ (aq) + Mn2+ (aq) + 4H2O(1) a. Fe2+ b. Mn04 c. H+ d. H20 3. Which substance is oxidized in the following reaction (1 point): Fes(s) +...
7) For the chemical reaction NH3(aq) + HCl(aq) → NH- (aq) + CH(aq) the acid and conjugate buse are a) NH3 (acid); NHÀ (Conjugate base) b) NH, (acid), CI (conjugate base) c) HCI (acid); NH; (conjugate base) d) HCI (acid); NHA (conjugate base) e) HCI (acid), CI (conjugate base)
Which of the following is true
for reaction Cu + ZnCl2 —> CuCl2 + Zn ? Write the oxidation
numbers of each species above their formula and write a
half-reaction showing what happens to both the Cu and Zn2+. Please
show work, I want to learn how to do this!
Which of the following is true for reaction Cu + ZnCl2 - numbers of each species above their formula, and write a half-reaction showing what happens to CuCl2 + Zn?...
6 Which of the following chemical equations is an example of an acid-base reaction? ed Select one: a. 2 HCl (aq) +Po(NO)2 (aq) PbC2 (s)+2 HNOs (aq) b. HF (aq) NH3 (ag) NH&F (aq) c. 2 HCl (aq) + Zn (s) → H2 (g) + ZnCl2 (aq) d. Ba(OH)2 (aa) + K2S04 (aq) → Baso, (s) + 2 KOH (aq) e. 3 NaOH (aq) + AIClg (aa)-Al(OH)3 (s) + 3 NaCl (aq) out of ag ion
1. For the oxidation-reduction reaction Zn(s) + 2HNO3 (aq) → H2(g) + Zn(NO3)2 (aq) Hint: HNO3 a) provide equation for the oxidation half-reaction: b) provide equation for the reduction half-reaction: In the given equation above or in your answers to a) and b): c) label the substance which is oxidizing agent, d) label the substance which is reducing agent.
help with these 3 please?
18. Of the reactions below, which one is a precipitation reaction? a. NH4Cl → NH3 + HCI b. 2Mg + O2 + 2MgO c. 2N2 + 3H2 + 2NH3 d. 2CH4 +402 2002 + 4H20 e. Ca(NO3)2 + Na2S → CSS(s) + 2NaNO3 19. In the equation, CrO42(aq) + H2O(l) → CrO2(aq) + OH-(ag), the change in the oxidation number of the chromium atom is a. decrease by six units b. decrease by three units...
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