All the following are oxidation–reduction reactions except:
a.) H2(g) + F2(g) → 2HF(g).
b.) Ca(s) + H2(g) → CaH2(s).
c.) 2K(s) + 2H2O(l) → 2KOH(aq) + H2(g).
d.) 6Li(s) + N2(g) → 2Li3N(s).
e.) Mg3N2(s) + 6H2O(l) → 3Mg(OH)2(s) + 2NH3(g).
All the following are oxidation–reduction reactions except: a.) H2(g) + F2(g) → 2HF(g). b.) Ca(s) +...
4. Which of the following reactions involves neither oxidation nor reduction? a. N2(g) + 3H2(g) - 2NH3(8) b. NH.NO(s) - N2(g) + 2H2O(1) c. Cu(s) + 2Ag (aq) → Cu²+(aq) + 2Ag(s) d. 2 Cro. (aq) + 2H*(ag) - Cr2O72- (aq) + H:0() e. CH:(8) + H2(g) - CH (8) 5. The oxidation number of nitrogen given for all the following species is correct except a. NH4 (-2). b. N30 (+1). c. NH2OH (-1). d. HNO, (+3). e. HN; (-1)....
Classify the half‑reactions as reduction half‑reactions or oxidation half‑reactions. H2(g)⟶2H+(aq)+2e−H2(g)⟶2H+(aq)+2e− 12O2(g)+2H+(aq)+2e−⟶H2O(g)12O2(g)+2H+(aq)+2e−⟶H2O(g) Cd(s)+2OH−(aq)⟶Cd(OH)2(s)+2e−Cd(s)+2OH−(aq)⟶Cd(OH)2(s)+2e− 2NiO(OH)(s)+2H2O(l)+2e−⟶2Ni(OH)2(s)+2OH−(aq)2NiO(OH)(s)+2H2O(l)+2e−⟶2Ni(OH)2(s)+2OH−(aq) Fe(s)⟶Fe2+(aq)+2e−Fe(s)⟶Fe2+(aq)+2e− oxidation reduction reduction oxidation reduction
Which of the following reactions are redox reactions? In those that are, identify the oxidation and reduction processes. (a) N2 + 3Mg = Mg3N2 (b) N2 + O2 → 2NO (c) 2N02-N2040 (d) SbFz + F2 SbF5b (e) 6HCl + As2O3 2AsCl3 + 3H2O (f) 2CO + 02 - 2002 (g) MnO2 + 4HCI MnCl2 + Cl2 + 2H,0 (h) (Cr,0,12- + 2(OH) = 2(CrO2]2- + H2O
Identify which of the following equations are balanced. Check all that apply. SF4(g)+2F2(g)→SF6(g)SF4(g)+2F2(g)→SF6(g) 6Li(s)+N2(g)→2Li3N(s)6Li(s)+N2(g)→2Li3N(s) Mg(s)+N2(g)→Mg3N2(s)Mg(s)+N2(g)→Mg3N2(s) PCl3(l)+Cl2(g)→PCl5(s)
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)
What is the enthalpy change, ΔH∘rxn , for each of the following reactions? 1.2.3.Ag+(aq)+Li(s)Fe(s)+2Na+(aq)2K(s)+2H2O(l)→→→Ag(s)+Li+(aq)Fe2+(aq)+2Na(s)2KOH(aq)+H2(g) Express your answers in kilojoules to four significant figures separated by commas.
(10 pts) Balance the following redox reactions by first separating the oxidation and reduction half-reactions. a. Cut (aq) + Fe (s) Fe3+ (aq) + Cu(s) b. Cu(s) + HNO3 (aq) Cu2+ (aq) + NO (g) (basic solution) c. NH(aq) + O2(g) → N03 (aq) + H2O(l) (acidic solution) d. Cd(s) + NiO(OH)(s) + Ca(OH)2(s) + Ni(OH)2(s) (Nicad battery) e. The oxidation of iodide ion (1) by permanganate ion (MnO4) in basic solution to yield molecular iodine (12) and manganese(IV) oxide...
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)...
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) →...
(6 points) Calcium hydride reacts with water as follows: CaH2(s) + H2O(l) → Ca(OH)2(aq) + H2(g) How many grams of CaH2 are needed to produce 4.1 L H2(g) at 0.97 atm and 12 °C?