Question 6 (1 point) Given: Zn(s) + OH(aq) + H2O(l) + NO3- (aq) --> Zn(OH)42-(aq) +...
Given: 1-(aq) + MnO4 (aq) + H2O(1) --> 12(s) + MnO2(s) + OH(aq) If the coefficient of MnO4 in the balanced equation is 2, what are the coefficients of l- and OH, respectively? O 6 and 8 06 and 12 06 and 6 03 and 4 O3 and 12
Question 10 (1 point) Given: MnO4 (aq) + H*(aq) + CI (aq) --> Mn2*(aq) + Cl2(g) + H2O(1) If 10 electrons are transferred in the balanced equation, what is the coefficient of CI-? ООООО
Question 5 (1 point) Given: MnO4 (aq) + H+(aq) + Cl (aq) --> Mn2+(aq) + Cl2(g) + H2O(1) If the coefficient of MnO4 in the balanced equation is 2, what are the coefficients of H+, Cl- and Cl2, respectively? 8,5,5 0 16, 10,5 010, 10,5 o 4, 8, 4 08, 10,5
5. (12 points) For the following oxidation reduction reaction: Zn(s)+NO3 (aq) > Zn2*(aq) + N2(g) + H20 a. What are the oxidation numbers of the reactants and products? Oxidation Number in products Element Oxidation Number in reactants Zn N b. Write the balanced oxidation half-reaction and the reduction half-reaction. (in acid medium) Balanced oxidation half-reaction: Balanced reduction half-reaction: Write the balanced full reaction c.
When the reaction below is balanced, how many electrons are transferred? O2(g) + H2O(l) + Fe(s) --> Fe(OH)3(s) Oo 04 • 12 8
Q.8. Balance the following equation. _Co (NO3)2 (aq) +_(NH4)2S(aq) => _Co2S3() + _NH4NO3(aq)
is thos correct? Question 1 (1 point) Saved Given: NO3(aq) --> NH3(aq), basic solution. How many electrons appear in the balanced half-reaction? 8 02 O 10 06 04
Question 1 (1 point) Given: Br" (aq) -->BrO3- (aq), basic solution. How many electrons appear in the balanced half-reaction? 06 o o o o
1. Which substance is being oxidized in the following reaction? Zn(s) + 4 CN (aq) + AgaCrO4(s) ----> Zn (CN) 42- + 2 Ag(s) + CrO42-(aq) a CN (aq) ions b) Zn(s) c) Ag(s) d) Ag (aq) ions e) H2(g)
The reaction of sodium(s) with water(l) to form sodium hydroxide(aq) and hydrogen(g) proceeds as follows: 2Na(s) + 2H2O(1)—>2NaOH(aq) + H2(g) When 5.91 g Na(s) reacts with sufficient H2O(1), 47.4 kJ is evolved. Calculate the value of A,H for the chemical equation given. kJ/mol Submit Show Approach Show Tutor Steps