Which of the following elements is capable of oxidizing Fe2+1aq2 ions to Fe3+1aq2 ions: chlorine, bromine, iodine? (a) I2 (b) Cl2 (c) Cl2 and I2 (d) Cl2 and Br2 (e) all three elements

Q2

What element is oxidized in the following chemical reaction? 3Cu + 8HNO3 → 3Cu(NO3)2 + 2NO + 4H₂O OH ΟΝ O Cu O H₂O X 5

Which of the metals (Fe, Zn, Mg) will react in an aqueous solution of AL(NO3)3 to produce aluminum meatal?

Balance the following chemical equation (if necessary): BF;(s) + Li,So;(s) → LiF(s) + B2(So;); (s)

Consider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)) Assuming an excess of the other reagents, from one mole of aluminum Al (s), how many moles of alum will be produced?

21. Nitric acid is manufactured in the Oswald process, which involves the catalytic oxidation of ammonia according to the following equations: (i) 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) (ii) 2 NO(g) + O2(8) 2 NO2(g); (iii) 3 NO2(g) + H2O(1) → 2 HNO3(aq) + NO(g); (NO is fed back into the second reactor) (a) The above equations may be combined to yield the following equation. Balance this equation. NH3(g) +_O2(g) + _H2O(1) _HNO3(1) + _H,O(1) + NO(g) (b) What is the mole fraction of NH3 that becomes nitric acid in one reaction cycle? (c) How many kilograms of HNO3 will be produced in one reaction cycle from 1.00 m³ of NH3, measured at STP, if the overall yield is 92.0%? (d) If concentrated nitric acid contains 70.0% (by mass) of HNO3 and the solution has density of 1.48 g/mL, how many litters of concentrated nitric acid is produced in this process at the above reaction yield? (Answers: (b) 2/3; (c) 1.73 kg of HNO3; (d) 1.67 L)

How many grams of aluminum metal would react with 17.48g Fe2 O3 in the following reaction? Al (s) + Fe2O3 (s) -> Fe (s) +Al2O3(s)