Which of the following reactions is an oxidation-reduction reaction?
A) NH4HS(s) → NH3(g) + H2S(g)
B) 2 NaHCO3(s) → Na2CO3(s) + H2O(g) + CO2(g)
C) N2O4(g) → 2 NO2(g)
D) 2 SO2(g) + O2(g) → 2 SO3(g)
E) 2 HC2H3O2(aq) + Ba(OH)2(aq) → Ba(C2H3O2)2(aq) + 2 H2O(l)
Which of the following reactions is an oxidation-reduction reaction? A) NH4HS(s) → NH3(g) + H2S(g) B)...
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
for each reaction- classify as oxidation-reduction,acid-base or precipitation Classify each of the following reactions as oxidation-reduction, acid-base, or Note that in order to be a redox reaction, the oxidation number of an element must be different when it is a reactant than when it is a product. (1 point each) precipitation. Classification Reaction Number 24 Ca (s) +2 H2O ()- Ca(OH)2 (s) + H2 (g) 25 CdCl2 (aq)+ Na2S (aq)CdS (s) +2 NaCl (aq) Zn(OH)2 (s) + H2SO4 (aq)ZnSO4 (aq)...
Ammonium bisulfide, NH4HS, forms ammonia, NH3, and hydrogen sulfide, H2S, through the reaction NH4HS(s)⇌NH3(g)+H2S(g) This reaction has a Kp value of 0.120 at 25 ∘C. What are the partial pressures of NH3 and H2S at equilibrium, that is, what are the values of PNH3and PH2S, respectively? Enter the partial pressure of ammonia followed by the partial pressure of hydrogen sulfide numerically in atmospheres separated by a comma. What is the mole fraction, χ, of H2S in the gas mixture at...
Ammonium bisulfide, NH4HS, forms ammonia, NH3, and hydrogen sulfide, H2S, through the reaction NH4HS(s)?NH3(g)+H2S(g) This reaction has a Kp value of 0.120 at 25 ?C. P = 6.46
any oxidation-reduction reactions can be balanced by i spection. Try to balance the following reactions by inspection In each reaction, identify the substance reduced and the sub stance oxidized. a. Al(s) + HCl(aq)→AICI3(aq) 12(g) b. CH4(g) + S(s) → CS2(l) + H2S(g) c. C3H8(g) + O2(g) → CO2(g) + H2O(1) d. Cu(s) + Ag+(aq) → Ag(s) + Cu2+ (aq)
Use data given below to calculate ΔrS∘ΔrS∘ for each of the reactions. Standard Thermodynamic Quantities for Selected Substances at 25 ∘C∘C Substance ΔrS∘ΔrS∘, JK−1mol−1JK−1mol−1 Cr(s)Cr(s) 23.8 Cr2O3Cr2O3(s)(s) 81.2 CO(g)CO(g) 197.7 CO2(g)CO2(g) 213.8 H2(g)H2(g) 130.7 H2O(g)H2O(g) 188.8 H2O(l)H2O(l) 70.0 HNO3(aq)HNO3(aq) 146.0 N2(g)N2(g) 191.6 N2O4(g)N2O4(g) 304.4 NO(g)NO(g) 210.8 NO2(g)NO2(g) 240.1 O2(g)O2(g) 205.2 SO2(g)SO2(g) 248.2 SO3(g)SO3(g) 256.8 A) 4NO2(g)+2H2O(l)+O2(g)→4HNO3(aq) B) Cr2O3Cr2O3(s)(s) +3CO(g)→2Cr(s)+3CO2(g) C) SO2(g)SO2(g) +12O2(g)→SO3(g) D) N2O4(g)+4H2(g)→N2(g)+4H2O(g)
Consider the reaction: NH4HS (s) <--> NH3 (g) + H2S (g). An equilibrium mixture of this reaction at a certain temperature was found to have [NH3] = 0.278 M and [H2S] = 0.355 M. What is the value of the equilibrium constant (Kc) at this temperature? a. 0.126 b. 0.355 c. 0.783 d. 0.0987 e. 0.278
Oxidation-Reduction -- Balance the following reactions by oxidation number 1. H2S + HNO3 ---> S8 + NO + H2O 2. H2SO4 + HBr ---> SO2 + Br2 + H2O 3. N2O + H2. ---> H2O + NH3 4. HClO4 + ClO2 + H2O ----> HClO3 5. P4 + H2O + HNO3 ---> H3PO4 + NO
Consider the following reaction: NH4HS(s)⇌NH3(g)+H2S(g) An equilibrium mixture of this reaction at a certain temperature was found to have [NH3]= 0.280 M and [H2S]= 0.355 M . What is the value of the equilibrium constant (Kc) at this temperature?
Which of the following reactions is a redox reaction? (A) NH3(g) + H2O(l) NH4OH(aq) (B) 2 H2O(l) → H30* (aq) + OH- (aq) (C) Mg(OH)2(s) Mg* (aq) + 2 OH- (aq) (E) CO(g) + H2O(g) + CO2(g) + H2(g) (E) 3 HCl(aq) + Na3PO4(aq) H3PO4(aq) + 3 NaCl(aq)