Which of the following chemical equations show oxidation-reduction reactions?
Select the oxidation-reduction reaction(s)? 1. Pb(ClO4)2(aq) + 2 KI(aq) → PbI2(s) + 2 KClO4(aq) 2. Cl2(g) + CuI2(aq) → CuCl2(aq) + I2(aq) 3. CaCO3(s) → CO2(g) + CaO(s) Group of answer choices 1 only 3 only 2 only 1 and 3
46. Which species in the reaction below undergoes reduction? H2O(g) + CO(g) -H2(g) + CO2(g) a. H20 b.CO CH2 d. co2 e. None 47. Which species is reduced in the reaction below? (aq) + CIO (aq) + 10 (aq) + C (aq) a. b. H20 c.cr d. 10 e. CIO 48. Which of the following elements generally acts as an oxidizing agent? a. Br2 b.H2 c. Fed . C e. Li 49. What is the oxidation number of Fe in...
Predict the products of the following reactions and balance the chemical equations. 1. Synthesis Reactions a) 2Na(s) + Cl2(g) → 2NaCl (s) b) 3Mg(s) + N2(g) → Mg3N2 (8) 2. Decomposition Reactions a) 2HgO(s) → 2Hg (s)+ O2(g) b)Li2O(s)2Li (g)+ 0-2 (g) 3. Single Displacement Reactions a) Al(s) + Pb(NO3)2 (aq) → Al(NO3)2 + Pb b) Ca(s) + HNO3(aq) → 4. Double Displacement Reactions Remember to include state symbols to show if a precipitate forms. a) CaCl2(aq) +_ Li2SO4(aq) →...
Classify the following as acid-base reactions or oxidation-reduction reactions. (a) 3 HClO4(aq) + Fe(OH)3(s) → Fe(ClO4)3(aq) + 3 H2O(l) (b) HC2H3O2(aq) + NaHCO3(aq) → NaC2H3O2(aq) + CO2(g) + H2O(l) (c) 4 H2O(l) + 2 KMnO4(aq) → 2 MnO2(s) + 2 KOH(aq) + 3 H2O2(aq) (d) Cl2(g) + KOH(aq) → KClO(aq) + HCl(aq) (e) 2 Fe(s) + 3 NaOCl(aq) → Fe2O3(s) + 3 NaCl(aq) (f) CaC2(s) + 2 H2O(l) → C2H2(g) + Ca(OH)2(s) Explain your reasoning
Calculate ΔHrxn for the following reaction: Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g) Use the following reactions and given ΔH′s. 2Fe(s)+3/2O2(g)→Fe2O3(s), ΔH = -824.2 kJ CO(g)+1/2O2(g)→CO2(g), ΔH = -282.7 kJ
Calculate ΔHrxn for the following reaction: Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g) Use the following reactions and given ΔH′s. 2Fe(s)+3/2O2(g)→Fe2O3(s), ΔH = -824.2 kJ CO(g)+1/2O2(g)→CO2(g), ΔH = -282.7 kJ
Determine whether each of the following equations for precipitation reactions is correct. If not, write the correct equation. If no reaction occurs, choose NO REACTION. Ba(NO3)2(aq)+(NH4)2SO4(aq)→BaSO4(s)+2NH4NO3(aq)Ba(NO3)2(aq)+(NH4)2SO4(aq)→BaSO4(s)+2NH4NO3(aq) correct incorrect no reaction BaS(aq)+2KCl(aq)→BaCl2(s)+K2S(aq)BaS(aq)+2KCl(aq)→BaCl2(s)+K2S(aq) correct incorrect no reaction 2KI(aq)+Pb(NO3)2(aq)→PbI2(s)+2KNO3(aq)2KI(aq)+Pb(NO3)2(aq)→PbI2(s)+2KNO3(aq) correct incorrect no reaction Pb(NO3)2(aq)+2LiCl(aq)→2LiNO3(s)+PbCl2(aq)Pb(NO3)2(aq)+2LiCl(aq)→2LiNO3(s)+PbCl2(aq) correct incorrect no reaction
Study this chemical reaction: FeI2(aq) +Mg(s)→ MgI2(aq) +Fe(s) Then, write balanced half-reactions describing the oxidation and reduction that happen in this reaction. Oxidation: Reduction:
Which is the correct balanced reaction for the combustion of octane? Given the following reactions Fe203 (s) + 3CO (s)2Fe (s)+ 3CO2 (g) AH=-28.0 kJ 3Fe (s) +4CO2 (s) 4CO (g) +Fe304 (s) AH = +12.5 kJ the enthalpy of the reaction of Fe2O3 with CO 3Fe203 (s) + CO (g) CO2 (g) + 2 Fe304 (s)
Balancing Oxidation–Reduction Reactions (Section)Complete and balance the following equations, and identify the oxidizing and reducing agents:(a) Cr2O72-(aq) + I-(aq)→Cr3+(aq) + IO3-(aq) (acidic solution)(b) MnO4-(aq) + CH3OH(aq) →Mn2+(aq) +HCO2H(aq) (acidic solution)(c) I2(s) + OCl-(aq)→IO3-(aq) + Cl-(aq) (acidic solution)(d) As2O3(s) + NO3-(aq)→H3AsO4(aq) + N2O3(aq) (acidic solution)(e) MnO4-(aq) + Br-(aq)→MnO2(s) + BrO3-(aq) (basic solution)(f) Pb(OH)42-(aq) + ClO-(aq)→PbO2(s) + Cl-(aq) (basic solution)