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6) For the following reaction, what is the reducing reaction? 4Cr + 302 + H+ +...
6) For the following reaction, what is the reducing reaction? 4Cr+ 302 + H+ + OH → 2Cr2O3 + H20 H+ + OH → H20 ОА. 4Cr+ 302 → 2Cr2O3 OB. + Зе Cr Cr3+ Ос. O2 + 4e → 202. Answer OD
7) For the following reaction, what is the reducing agent? 4Cr + 302 + H+ + OH à 2Cr2O3 + H20 OA. Cr 02 B. H+ ОН" D. E. Cr203
7) For the following reaction, what is the reducing agent? 4Cr + 302 + H+ + OH → 2Cr2O3 + H2O O ĄCr 02 ОВ. H+ OC OH" OD. O E. Cr2O3
or the following reaction: 4Cr(s) + 302(g) → 2Cr2O3(s) a. How many moles of oxygen (O2) would react with 0.35 moles of chrom 0.35 moles Cr x 3 mole ₂ = 0 4 moleco b. Starting with 10.4g of Oz, how many moles of Cr2O3 can be produced
a Consider the balanced chemical equation 4Cr(s) + 302(g) + 2Cr2O3(s) What mole ratio would you use to calculate how many moles of oxygen gas would be needed to react completely with a given number of moles of chromium metal? 4 mol O2 3 mol Cr 2 mol O2 3 mol Cr 3 mol O2 2 mol Cr 3 mol O2 4 mol Cr b Consider the balanced chemical equation 4Cr(s) + 302 (9) + 2Cr2O3(s) What mole ratio would...
Question 22 (4 points) Cr2O72- + 3 H2O2 + 8 H+ + 2 Cr3+ + 3 O2 + 7 H2O In the above reaction Ocrin Cr₂O7 2- is reduced. OH in H+ is oxidized. Cr₂O7 2 is the oxidizing agent and H2O2 is the reducing agent. Cr₂O7 2- is the reducing agent and H2O2 is the oxidizing agent.
Use the following half-reactions to write 3 spontaneous reactions, calculate E°cell for each reaction, what is the n number (number of electrons transferred). Au+ (aq) + e− → Au (s) E° = 1.69 V N2O (g) + 2H+ (aq) + 2 e− → N2 (g) + H2O (l) E° = 1.77 V Cr3+ (aq) + 3 e− → Cr (s) E° = -0.74 V Question 7 0.36 pts Use the following half-reactions to write 3 spontaneous reactions, calculate Eºcell for...
1. Which of the following reaction represents cathode reaction in chrom plating? a. Cr (s) → Cr6+ (aq) + 6 e¯ b. Cr (s) → Cr3+ (aq) + 3 e¯ c. Cr3+ (aq) + 3 e¯ → Cr (s) d. Cr (s) → Cr3+ (aq) + 6 e¯ 2. The molar solubility of AgBr is 6.3 × 10−7 M. What is its Ksp? 3. Co2+ (aq) + 6 H2O (l) ⇌ Co(H2O)62+ (aq) the ligand(s) is/are: a. Co2+ b. Co(H2O)62+...
answer both questions 11.(4pt) What is the net ionic equation for the reaction of hydrochloric acid with potassium hydroxide? A. HCl + KOH → H2O + KCI B. H+ + Cl, + K. + OH. → H2O + K. + Cl. C. H+OH-H20 12. (4pt) In the reaction C() + O2(g) →COvo carbon is- . A. the reducing agent B. the electron acceptor C. reduced D. the oxidizing agent
What substance is the reducing agent in the following redox reaction? H+(aq) + Mn(s) + NO3-(aq) → Mn2+(aq) + NO(aq) + H2O(l) Mn NO3- Mn2+ none of the above NO