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Redox Reactions

Q. For the balanced redox reaction 2 Cr(s) + 3 Cl2(g) -> 2 CrCl3(s), determine the number of electrons transferred in the overall reaction.

Solved • Jul 11, 2019

Redox Reactions

Q. Is this a redox reaction? CaCO3 → CaO + CO2

Solved • Jul 8, 2019

Redox Reactions

Q. Which of the following are oxidation-reduction reactions? I. PCl 3 + Cl 2 → PCl 5 II. Cu + 2AgNO 3 → Cu(NO 3) 2 + 2Ag III. CO 2 + 2LiOH → Li 2CO 3 + H 2O IV. FeCl 2 + 2NaOH → Fe(OH) 2 + 2NaCl A. IV B. I and II C. I, II, III, and IV D. III E. I, II, and III

Solved • Jun 24, 2019

Redox Reactions

Q. Part A Which of the following are redox reactions? CH3CH2OH(l)+3O2(g)→3H2O(l)+2CO2(g) P4(s)+10HClO(aq)+6H2O(l)→4H3PO4(aq)+10HCl(aq) Br2(l)+2K(s)→2KBr(s) ZnCl2(aq)+2NaOH(aq)→Zn(OH)2(s)+2NaCl(aq)

Solved • Jun 23, 2019

Redox Reactions

Q. On the complete burning of methane, inform the correct alternative? A) The burning of methane is not a REDOX type reaction. B) Carbon is reduced in methane burning. C) The oxygen NOX between the products is -2. D) Carbon is not reduced in methane burning. E) Hydrogen is the reducing agent of the process.

Solved • Jun 19, 2019

Redox Reactions

Q. Based on the reactions below, determine the true statement: 1) Only b) is redox. And the oxidizing and reducing agents are respectively Br and Ca. 2) a) and c) are REDOX, in the first the oxidizing agent is magnesium and in the second the Iron (II). 3) a) is REDOX, its oxidizing agent is molecular magnesium. 4) a) and c) are REDOX, in the first the oxidizing agent is the magnesium and the reducer the molecular oxygen. 5) a) and c) are REDOX, in the former the oxidizing agent is molecular oxygen

Solved • Jun 19, 2019

Redox Reactions

Q. What is the oxidation half reaction in the following chemical reaction? Zn(s) + 2 H+(aq) → Zn2+(aq) + H2(g)

Solved • May 28, 2019