Concept explainers
Interpretation:
Whether the given
Concept Introduction:
The
Oxidation is the process in which either loss of electrons, oxidation number increases, or loss of hydrogen atoms takes place. An element is oxidized, when oxidation number increases.
Reduction is the process in which either gain of electrons, oxidation number decreases, or gain hydrogen atoms takes place. An element is reduced, when oxidation number decreases.
Oxidizing agent are those which are reduced in a chemical reaction or gain electrons whereas reducing agents are those which are oxidized in a chemical reaction or lose electrons.
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Introductory Chemistry: A Foundation
- Exercise 5.69 53 of 54 MISSED THIS? Read Section 5.9 I Review I Constants I Periodic Table (Pages 193 - 201). Which metal could you use to accomplish this? Suppose you wanted to cause Ni?+ ions to come out of solution as solid Ni. Activity Series of Metals Mg(s) → Mg²+*(aq) + 2e Al(s) → Al³+ (aq) + 3e Mn(s) → Mn²+(aq) + 2e¯ Strongest tendency to lose electrons Most reactive Most easily oxididized → Zn²+(aq) + 2e Cr+ (aq) + 3e + Fe²+(aq) +3e Zn(s) Cr(s) Fe(s) Ni²+ (aq) + 2e¯ → Sn²*(aq) + 2e Pb(s) → Pb²+(aq) + 2e¯ Ni(s) Sn(s) H2 (g → 2H (aq)+ 2e Cu(s) Ag(s) Au(s) → Au+ (aq) + 3e Cu²+(aq) + 2e → Ag* (aq)+e Least reactive Most difficult to oxidize Least tendency to lose electrons Check all that apply. O Zn O Mg O Cu O Pb O Fe Submit Request Answerarrow_forwardExercise: Assume that 10g of K-PtCl, and 10g of NHare allowed to react, how many grams of the excess reactant are consumed, and how many grams remain? R KPtCla + 2NH3 Pt(NH)Cl+ 2KCIarrow_forwardExercise 1: When calcium comes in contact with water, calcium hydroxide and hydrogen gas is produced. 1. Justify why the above process is a chemical reaction. 2. Give the two pieces of evidence on the occurrence of the chemical reaction. 3. Write the word equation of the given reaction 4. Write the symbol equationarrow_forward
- Exercises 1. Assign an oxidation number to each species in the redox reaction below. 2 H₂O → 2 H2 + O2 2. For the reaction above, identify the following: a. Species oxidized: b. Species reduced:arrow_forwardIncorrect Your answer is incorrect. Use the information in the ALEKS Data tab to sort the following chemical species by oxidizing power. species oxidizing power 2+ Mg (aq) 3+ Al (aq) + Na (aq) 2+ Ni (aq) × 1 (highest) ◇ 3 2 4 (lowest) ◇ Garrow_forwardBalancing Equations Practice Balance each of the following chemical equations. Directions: You are required to do 8 * worth of problems. You are obviously welcome to do more. Please take a photo of any work on paper and include it in this doc. 8. ** Os0, + PtCl, PtO2 + OsClg 9,举岸 S+ HNO, - H,SO, + NO2 + H20 >arrow_forward
- When the following skeletal equation is balanced under basic conditions, what are the coefficients of the species shown? Sn0, SnO, Water appears in the balanced equation as a (reactant, product, neither) with a coefficient of (Enter 0 for neither.) Which species is the oxidizing agent? Submit Answer Try Another Version 2 item attempts remainingarrow_forwardIn the commercial preparation of aluminum, aluminum oxide, Al2O3, is electrolyzed at 1000°C. (The mineral cryolite is added as a solvent.) Assume that the cathode reaction is Al³+ + 3e –→ Al How many coulombs of electricity are required to give 3.75 kg of aluminum? C Submit Answer Try Another Version 10 item attempts remainingarrow_forwardExercise 6: Redox Reaction Balance the following redox equation in acidic medium 1. MnO + H₂C₂O ® Mn²+ + CO₂ 4 Balance the following redox reaction in basic medium 1. Zn + NO₂® Zn(OH)² + NH3arrow_forward
- Practice Exercise: Balance the following reactions using the ion-electron method showing the steps. For each reaction, identify the anode, the cathode, the oxidizing agent and reducing agent. Write the overall (final) reaction. 2. CN + Mno, CNO- + Mno, (basic medium)arrow_forward(a) Consider the following reaction: [Cr(H2O)5CN]Cl2 + H20 --> [Cr(H2O)6]3+ + 2 Cl + CN- (CrCN) The rate law at 25°C in water for this reaction is: -d[CrCN]/dt = ki [CrCN] + k2 [C•CN][OH-] + k3 [CrCN][H+] . Identify k1, k2 and k3 with specific steps in your mechanisms.arrow_forwardTe following chemical reaction takes place in aqueous solution: MnCl, (aq)+2 KOH(ag) →Mn(OH),(s)+2KCI(aq) Write the net ionic equation for this reaction. Explanation Check O2022 McGraw Hill LLC. All Rights Reservearrow_forward
- Introductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage LearningGeneral Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage Learning