Is this balanced? ZnS + 4 O2 = 3 ZN + 3 SO
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Complete lonic Net lonic: 2. Using the balanced chemical equation below... 4 Zns) + 10 HNO3(aq) → 4 Zn(NO3)2 (aq) + N2O(g) + 5 H2O a. Calculate the theoretical yield of H2O, if 10.45 g of Zn are reacted with 18.5 g of HNO3. (4 pts) b. If 2.15 g of H2O was collected, what is the percentage yield? (2 pts)
Zn2+(aq) + 4Cn-(aq) ---> [Zn(CN-)4]2-(aq) Kf=2.1x1019 Given that the Ksp for ZnS is 2.0x10-25, use the Kf from the previous to find the equilibrium constant for the following reaction: ZnS(s) + 4CN-(aq) ---> [Zn(CN-)4]2-(aq) + S-2(aq)
2/3 correct answers are required for credit
Consider the insoluble compound zinc sulfide , ZnS. The zinc ion also forms a complex with hydroxide ions. Write a balanced net ionic equation to show why the solubility of ZnS (s) increases in the presence of hydroxide ions and calculate the equilibrium constant for this reaction. For Zn(OH)42. , K,-29x1015 . Use the pull-down boxes to specify states such as (aq) or (s). 1 1
The Kp for ZnS(8) is 2.4 x 10-22 at a certain temperature. The solubility of Zn() in water at this temperature is
For the balanced equation shown below, how many moles of O2 be produced by 0.7236 moles of ZnS? 2ZnS(s) + 3O2 (g) --> 2ZnO(s) + 2SO2 (g)
balancing equation Zn(s) +HCl(aq) HCl+ Na2SO3 HCl +ZnS Pb(NO3) +HCl
Based on the balanced reaction 4 Fe + 3 O2 → 2 Fe2O3, a student starts this reaction with these amounts of chemicals: 12 mol Fe, 15 mol O2, and 0 mol Fe2O3. What chemical is the limiting reactant?
Based on the balanced reaction 4 Fe + 3 O2 → 2 Fe2O3, a student starts this reaction with these amounts of chemicals: 12 mol Fe, 15 mol O2, and 0 mol Fe2O3. What chemical is the excess reactant? SHOW WORK
1. For the balanced chemical reaction: 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(ℓ), how many moles of H2O are produced when 0.669 mol of NH3 react? 2.For the balanced chemical reaction: 4 KO2(s) + 2 CO2(g) → 2 K2CO3(s) + 3 O2(g) determine the number of moles of each of the products that are formed when 6.88 mol of KO2 react. Please explain, thanks!
4) Consider the following balanced conventional equation. (21 pts) Zn(s) + H2SO, (aq) → Znso. (aq) + H2 (9) Individual oxidation numbers: a. Assign oxidation numbers to each element as indicated by the boxes in H SO, Zn in ZnSOS in Znso. O in ZnSO, and H in H2) (6 pts) b. Write the total ionic equation for the reaction above. (9 pts) ndicated by the boxes above. (i.e. Zn in Zn(s), H c. Write the net ionic equation for...