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What would the KMnO4 reaction be?
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- Write the balanced NET ionic equation for the reaction when aqueous KBr and aqueous AGC2H3O2 are mixed in solution to form aqueous KC:H3O2 and solid AgBr.2. Do you need an oxidising agent or reducing agent in order for the following reactions to i. ii. homb Hydrazine occur? iv. i. ii. N₂H4 C103™ CIO3 - C1O2 SO4²--S²- 2+ Mn²+ → MnO₂2 Zn → ZnCl₂ 3. Given the following redox reaction: Zn²+ (aq) + 2Al(s) → 3Zn(s) + 2A1³+ (aq) Identify, and write the half reaction for oxidation and the half reaction for reduction. Name the reducing agent and the oxidizing agent for the reaction 2How would you prepare 10ppm Mn2+ from KMnO4? Show calculations.
- 3. Write balanced formula equations for each of the following reactions. Physicai states of reactants and products need not be shown. (i) The combustion of ethane gas, C2H6, in excess air to form carbon dioxide and water. (ii) oxide andcarbon dioxide. The decomposition of solid całcium carbonate by heat to form calcium (iii) The decomposition of hydrogen peroxide to form water and oxygen(iv) The reaction of iron with chlorine to form iron(III) chloride.(3) äg الفصل الأول 120 مقررالي الدراسية Phosphorous acid upon thermal decomposition yields phosphoric acid Phosphorus pentoxide a O Phosphine .b O Phosphorus.c Water da) What is the pH of water in equilibrium with 0.040 ppm SO2 gas? The total air pressure is 1.02 atm. Assume that no further oxidation occurs in the air or water. KH = 1.0; Ka1 = 1.7 x 10-2; Ka2 = 1.2 x 10-7 b) Would the resulting pH be higher or lower than the pH from (3a) if further oxidation did occur in the air? Explain. please answer both and show work.
- 3.12 g of the coal sample was Kjehldahlized and NH3 gas was absorbed in 50 mL of 0.1N H2SO4. After absorption, the excess (residual) acid required 12.5 mL of 0.1 N NaOH for exact neutralization. Determine the percentage of nitrogen in the coal sample.Predict the volume of oxygen (at 25oC and 743 mm Hg) that will be liberated if 1.00g of sodium peroxide reacts with excess water via the following: 2Na2O2 (s) + 2 H2O (l) --> O2 (g) + 4 NaOH (aq).What is the purpose of the hexane in the halogen displacement? Intowhich layer (water or hexane) would the following species reside?Cl‐, I2, Cl2, Br‐, I‐, Br2