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Which of the following reactions is a redox reaction? (A) NH3(g) + H2O(l) NH4OH(aq) (B) 2...
Which one of the following reactions is NOT a redox reaction? A. 3 Hg(l) + 2 Cr(NO3)3(aq) → 3 Hg(NO3)2(aq)+ 2 Cr(s) B. 2Ag(s) + 2HNO3(aq) → 2AgNO3 (aq) + H2 (g) C. 2 HClO4(aq) + CaCO3(s) → Ca(ClO4)2(aq) + H2O(l) + CO2(g) D. Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) E. CH4(g) + 2 O2(g) → CO2(g) + 2 H2O(l)
Part A. Which of the following is not a redox reaction?
H2O(l) + NH3(g) NH4+(aq) + OH–(aq)
2H2(g) + O2(g) 2H2O(l)
Zn(s) + H2SO4(aq) ZnSO4(aq) + H2(g)
FeSO4(aq) + K2Cr2O7(aq) + 7H2SO4(aq) Cr2(SO4)3(aq) + 3Fe2(SO4)3(aq) + K2SO4(aq)
+ 7H2O(l)
Cl2(g) + 2KBr(aq) Br2(l) + 2KCl(aq)
Part B. A 43.46 mL sample of Na2SO3 was titrated with 68.99 mL
of 0.128 M K2Cr2O7 solution in the presence of H2SO4. Calculate the
molarity of the Na2SO3 solution. Enter to 3 decimal...
Which of the following reactions has a net lonic equation of H^+ (aq)+OH^- (aq)-> H20(l) a) 2NaOH(s)+CO2(g)-> Na2CO3 (s)+ H2O (l) b) NH3 (aq)+H2O(l)-> NH4OH(aq) c) KOH(aq)+ HClO4 (aq)-> H2O (l) +KClO4 (aq) d) MgH2 (s)+ 2H2O (l)->2H2(g)+Mg(OH)2 (aq) e) none of the above
Which of the reactions below does not represent a redox reaction? 2 NaI (aq) + Br2 (l) → 2 NaBr (aq) + I2 (g) 2 NaCl (aq) + Pb(NO3)2 (aq) → PbCl2 (s) + 3 NaNO3 (aq) 3 Al (s) + 6 HCl (aq) → 3 H2 (g) + AlCl3 (aq) 2 H2O (l) → 2 H2 (g) + O2 (g) None of these
Which of the following reactions is a neutralization reaction? A. NH3(aq) NH2 - + H+ B. NaCl(aq) + AgNO3(aq) NaNO3(aq) + AgCl(s) C. HCl(aq) + NaOH(aq) NaCl(aq) + H2O (l) D. H2SO4(aq) + Zn (s) H2(g) + ZnSO4(aq)
1. Determine if each of the following reactions is a redox reaction, or is not a redox reaction. a. C4H8 (g) + O2 + H20 (g) + CO2 (g) b. HCl (aq) + NaOH (aq) → H20 (1) + NaCl (aq) c. Fe2O3 + H2 → Fe + H2O d. Cu (s) + HNO3 (aq) → Cu(NO3)2 (aq) + NO2 (g) + H20 (1) e. CzHe(g) + 5 O2 (g) → 3 CO2 (g) + 4 H20 (g)
Which of the following are redox reactions?
CO2(g) + 2H2O(l)
H3O+(aq) +
HCO3-(aq)
2CuS(s) + O2(g)
Cu(s) + SO2(g)
2AgNO3(aq) + Cu(s)
Cu(NO3)2(aq) + 2Ag(s)
2AgNO3(aq) +
Na2SO4(aq)
2NaNO3(aq) +
Ag2SO4(s)
CO(g) + H2O(g)
CO2(g) + H2(g)
* Balance and characterize the following reactions HCl + Mg(OH)2 ===> MgCl2 + H2O Na3PO4 + CaCl2====> Ca3(PO4)2 + H2O N2 + H2 ====> NH3 C8H18 + O2===> CO2 + H2O CuCl2 + NaOH===> Cu(OH)2 + NaCl NaHCO3 ===> CO2 + Na2CO3
Which of the following are redox reactions? 2AgNO3(aq) + Cu(s) + Cu(NO3)2(aq) + 2Ag(s) 2Cus(s) + O2(g) + Cu(s) + SO2(g) 2AgNO3(aq) + Na2SO4(aq) + 2NaNO3(aq) + Ag2SO4(s) CO(g) + H2O(g) + CO2(g) + H2(g) CO2(g) + 2H20(1) + H30+(aq) + HCO3(aq)
2. Classify each of the following reactions as precipitation, gas forming, redox, acid/base, combination, decomposition, double displacement or single displacement. Each reaction will have at least two classifications. a. Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s) b. H2SO3(aq) → SO2(g) + H2O(1) C. N2(g) + H2(g) → NH3(g) d. AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) ii. e. HCl(aq) + Ba(OH)2(aq) + H2O(l) + BaCl2(aq)