Tro IC.3 1.The loss of protons 2.The gain of oxygen atoms 3.The loss of hydrogen atoms 4.The gain of electrons 5.Two of the above 16.1 Which statement.

Slides:



Advertisements
Similar presentations
Oxidation and Reduction TOPIC 9. REDOX REACTIONS REDOX = reduction & oxidation O 2 (g) + 2 H 2 (g)  2 H 2 O( s ) O 2 (g) + 2 H 2 (g)  2 H 2 O( s )
Advertisements

Cells and Voltage.
Recap Precipitation Reactions: ions combine to form insoluble products Neutralization Reactions: H + ions and OH - ions combine to form H 2 O Next: Oxidation-Reduction.
Regent’s Warm-Up What is the electron configuration of a sulfur atom in the ground state? (1) 2 – 4 (3) 2 – 8 – 4 (2) 2 – 6 (4) 2 – 8 – 6.
Basic Principles of Chemistry Online Southeast Missouri State University Cape Girardeau, MO Introductory Chemistry, 3 rd Edition Nivaldo Tro Chapter 16.
VIII. Oxidation-Reduction J Deutsch An oxidation-reduction (redox) reaction involves the transfer of electrons (e - ). (3.2d) The oxidation numbers.
Electrochemistry Use of spontaneous chemical reactions to produce electricity; use of electricity to drive non-spontaneous reactions. Zn(s) + Cu 2+ (aq)
Chapter 20 Electrochemistry
Lecture 11: Electrochemistry Introduction
CHEMISTRY 40S UNIT 1: AQUEOUS REACTIONS IN SOLUTION LESSON 5.
Chemistry 1011 Slot 51 Chemistry 1011 TOPIC Electrochemistry TEXT REFERENCE Masterton and Hurley Chapter 18.
Chapter 18 Oxidation–Reduction Reactions and Electrochemistry.
Chemistry Oxidation-Reduction(Redox). I. Introduction Acids donate _____ and bases accept ____ H+H+H+H+H+H+H+H+ proton(s)proton(s) proton(s)proton(s)
Aim Redox 1 – Why is redox so important in your life?
Redox Chemistry and Corrosion Chapter 16. Oxidation and Reduction ► So far we have looked at precipitation reactions and acid-base reactions. ► Now we.
INTRODUCTORY CHEMISTRY INTRODUCTORY CHEMISTRY Concepts and Critical Thinking Sixth Edition by Charles H. Corwin 1 Chapter 17 © 2011 Pearson Education,
Chapter 22 REDOX.
Redox Reactions and Electrochemistry
Oxidation and Reduction
Electrochemistry. Electrochemical Cells  Electrons are transferred between the particles being oxidized and reduced  Two types –Spontaneous = Voltaic.
Warmup Assign oxidation numbers to each element: NaNaClCl 2 H 2 O Ca(OH) 2 NO 3 -
Chapter 17 Oxidation and Reduction Notes One Unit Six Redox Oxidation Numbers Identifying what is oxidized and what is reduced.
“Redox” REVIEW GAME.
Redox Reactions Or How Batteries Work REDOX Reactions The simultaneous transfer of electrons between chemical species. – Actually 2 different reactions.
Redox Half Reactions What is the purpose of creating a half reaction? How to balance a half reaction?
Oxidation and Reduction (REDOX) reactions?
Chapter 20 Oxidation-Reduction Reactions Anything in black letters = write it in your notes (‘knowts’)
GALVANIC AND ELECTROLYTIC CELLS
Electrochemistry and Redox Reactions. 2Mg (s) + O 2 (g) 2MgO (s) 2Mg 2Mg e - O 2 + 4e - 2O 2- Oxidation half-reaction (lose e - ) Reduction half-reaction.
Oxidation Numbers Positive oxidation number Negative oxidation number - Loses partial or total control of electrons in a bond - Gains partial or total.
Activity Series lithiumpotassiummagnesiumaluminumzincironnickelleadHYDROGENcoppersilverplatinumgold Oxidizes easily Reduces easily Less active More active.
JUST REMEMBER... “OIL RIG” (oxidation is losing, reduction is gaining)
Electrochemisty Electron Transfer Reaction Section 20.1.
OXIDATION AND REDUCTION. Oxidation Losing electrons The higher positive oxidation number the more the atom has loss control over the electrons, therefore.
Redox Reactions Year 11 Chemistry ~ Unit 2.
Precipitation Titrations Dr. Riham Ali Hazzaa Analytical chemistry Petrochemical Engineering.
Electrochemistry.
Define oxidation and reduction. Determine oxidation numbers for atoms. Identify the oxidizing agent, the reducing agent. Distinguish between redox and.
Electrochemistry.
Electrochemistry ZnSO4(aq) CuSO4(aq) Cu Zn Zn
Redox reactions half-reactions: Reduction 2Fe e -  2Fe 2+ oxidation Sn 2+  Sn e - 2Fe 3+ + Sn 2+  2Fe 2+ + Sn http:\asadipour.kmu.ac.ir.
Electrochemistry Ch.19 & 20 Using chemical reactions to produce electricity.
Always Ox always change during redox reactions: Oxidation Increase Ox = Oxidation Reduction Decrease Ox = Reduction It’s a redox reaction if:element →
(Redox).  1. Synthesis  2. Decomposition  3. Single Replacement  4. Double Replacement  * Combustion.
Unit #3: Electrochemistry Lesson 1: Oxidation and Reduction.
Oxidation/Reduction Reactions
Galvanic Cells ELECTROCHEMISTRY/CHEMICAL REACTIONS SCH4C/SCH3U.
Section 14.2 Voltaic Cells p Voltaic cells Voltaic cells convert chemical energy to electrical energy. In redox reactions, oxidizing agents.
Electrochemistry Chapter 17 “Leo” the lion says “ger” §LEO - Lose Electrons = Oxidation GER - Gain Electrons = Reduction §What are the half reactions.
PREDICTING CHEMICAL REACTIONS : Single displacement Reactions: Mg(s) + ZnCl 2 (aq) → Zn(s)+ MgCl 2 (aq) The most reactive element (Mg) will replace the.
Chapter 7 Chemical Reactions Chemistry 100. Chemical Reactions Chemical change = Chemical reaction Substance(s) is used up (disappear) New substance(s)
Chemical Reactions 2: Equilibrium & Oxidation-Reduction.
Definition If oxidation occurs, then reduction must also occur Any chemical process in which elements undergo a change in oxidation number is a Redox.
Oxidation Reduction. Definitions ► Oxidation- an element has lost electrons to another element. ► Reduction- an element gains electrons from another element.
UNIT 10: REDOX How can we assign oxidation numbers? How can we recognize a RedOx reaction? How can we identify which species is oxidized/reduced? How can.
Balancing Redox Equations – Voltaic (Galvanic) Cells.
1 UNIT 7 Reduction / Oxidation Reactions “Redox” and Electrochemistry.
1 Electrochemistry Chapter 18 Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
PACKET #12: Oxidation/Reduction (REDOX) Reference Table: Periodic Table & J
Chemical Reactions Dr. Schuerch. Describing Chemical Reactions A chemical reaction occurs when one or more reactants changes into one or more products,
ELECTROCHEMISTRY Presentation by: P.K. CHOURASIA K.V MANDLA, Jabalpur Region.
ELECTROCHEMISTRY CHEM171 – Lecture Series Four : 2012/01  Redox reactions  Electrochemical cells  Cell potential  Nernst equation  Relationship between.
Redox reactions. Definitions of oxidation and reduction Oxidation.
Redox Reactions and Electrolysis
Electrochemistry / Redox
Chemistry Final Review Electrochemistry
Oxidation/Reduction (REDOX) Reference Table: Periodic Table & J
January 2018 Electrochemistry Chemistry 30.
IX. Oxidation-Reduction
Presentation transcript:

Tro IC.3 1.The loss of protons 2.The gain of oxygen atoms 3.The loss of hydrogen atoms 4.The gain of electrons 5.Two of the above 16.1 Which statement best defines reduction?

Tro IC.3 1.The loss of protons 2.The gain of oxygen atoms 3.The loss of hydrogen atoms 4.The gain of electrons 5.Two of the above 16.1 Which statement best defines reduction?

Tro IC.3 1.An oxidation reaction must occur when a reduction reaction occurs. 2.The reactions occur only between two metals. 3.Half electrons are transferred in half reactions. 4.The reactions always involve oxygen. 5.All of the above 16.2 Which of the following statement best describes oxidation and reduction reactions?

Tro IC.3 1.An oxidation reaction must occur when a reduction reaction occurs. 2.The reactions occur only between two metals. 3.Half electrons are transferred in half reactions. 4.The reactions always involve oxygen. 5.All of the above 16.2 Which of the following statement best describes oxidation and reduction reactions?

Tro IC.3 1.Causes another substance to gain electrons 2.Causes another substance to gain oxygen atoms 3.Causes another substance to gain hydrogen atoms 4.Causes another substance to lose electrons 5.Two of the above 16.3 A reducing agent:

Tro IC.3 1.Causes another substance to gain electrons 2.Causes another substance to gain oxygen atoms 3.Causes another substance to gain hydrogen atoms 4.Causes another substance to lose electrons 5.Two of the above 16.3 A reducing agent:

Tro IC.3 1.Oxidized 2.Reduced 3.Synthesized 4.Neutralized 5.None of the above 16.4 In the following reaction: Fe(s) + Cu 2+ (aq) → Fe 2+ (aq) + Cu(s) iron is:

Tro IC.3 1.Oxidized 2.Reduced 3.Synthesized 4.Neutralized 5.None of the above 16.4 In the following reaction: Fe(s) + Cu 2+ (aq) → Fe 2+ (aq) + Cu(s) iron is:

Tro IC.3 1.Cu 2.Ag 1+ 3.NO 3 1 – 4.Cu 2+ 5.Ag 16.5 In the following reaction: Cu(s) + 2AgNO 3 (aq) → Cu(NO 3 ) 2 (aq) + 2Ag(s) which species is reduced?

Tro IC.3 1.Cu 2.Ag 1+ 3.NO 3 1 – 4.Cu 2+ 5.Ag 16.5 In the following reaction: Cu(s) + 2AgNO 3 (aq) → Cu(NO 3 ) 2 (aq) + 2Ag(s) which species is reduced?

Tro IC.3 1.Oxidizing agent 2.Redox agent 3.Reducing agent 4.Neutralizing agent 5.None of the above 16.6 In the following reaction: 3Mg(s) + N 2 (g) → Mg 3 N 2 (s) nitrogen is the:

Tro IC.3 1.Oxidizing agent 2.Redox agent 3.Reducing agent 4.Neutralizing agent 5.None of the above 16.6 In the following reaction: 3Mg(s) + N 2 (g) → Mg 3 N 2 (s) nitrogen is the:

Tro IC.3 1.Fe 2.Fe 2+ 3.CO 4.Fe 2 O 3 5.There is none In the following reaction: Fe 2 O 3 (s) + 3CO(g) → 2Fe(s) + 3CO 2 (g) the reducing agent is:

Tro IC.3 1.Fe 2.Fe 2+ 3.CO 4.Fe 2 O 3 5.There is none In the following reaction: Fe 2 O 3 (s) + 3CO(g) → 2Fe(s) + 3CO 2 (g) the reducing agent is:

Tro IC.3 1.KOH(aq) + HCl(aq) → H 2 O(l) + KCl(aq) 2.C 3 H 8 (g) + 5O 2 (g) → 4H 2 O(g) + 3CO 2 (g) 3.AgNO 3 (aq) + NaCl(aq) → AgCl(s) + NaNO 3 (aq) 4.All of the above 5.Two of the above 16.8 Which of the following is an example of a redox reaction?

Tro IC.3 1.KOH(aq) + HCl(aq) → H 2 O(l) + KCl(aq) 2.C 3 H 8 (g) + 5O 2 (g) → 4H 2 O(g) + 3CO 2 (g) 3.AgNO 3 (aq) + NaCl(aq) → AgCl(s) + NaNO 3 (aq) 4.All of the above 5.Two of the above 16.8 Which of the following is an example of a redox reaction?

Tro IC The oxidation state of S in S 8 is:

Tro IC The oxidation state of S in S 8 is:

Tro IC The oxidation state of copper in CuBr 2 is:

Tro IC The oxidation state of copper in CuBr 2 is:

Tro IC The sum of the oxidation states for all of the atoms in HClO 4 is:

Tro IC The sum of the oxidation states for all of the atoms in HClO 4 is:

Tro IC What is the oxidation state of Sb in H 2 SbO 3 1 –

Tro IC What is the oxidation state of Sb in H 2 SbO 3 1 –

Tro IC and and and and and What are the oxidation states of oxygen in H 2 O 2 and OH 1 –, respectively?

Tro IC and and and and and What are the oxidation states of oxygen in H 2 O 2 and OH 1 –, respectively?

Tro IC.3 1.Au(s) + Mg 2+ (aq) → 2.Mg(s) + Zn 2+ (aq) → 3.Zn(s) + Au 3+ (aq) → 4.Mg(s) + 2H 1+ (aq) → 5.All of the above The following is an activity series with the most reactive metal at the top: Mg(s) → Mg 2+ (aq) + 2e – Zn(s) → Zn 2+ (aq) + 2e – H 2 (g) → 2H 1+ (aq) + 2e – Au(s) → Au 3+ (aq) + 3e – Which reaction in this list is NOT spontaneous?

Tro IC.3 1.Au(s) + Mg 2+ (aq) → 2.Mg(s) + Zn 2+ (aq) → 3.Zn(s) + Au 3+ (aq) → 4.Mg(s) + 2H 1+ (aq) → 5.All of the above The following is an activity series with the most reactive metal at the top: Mg(s) → Mg 2+ (aq) + 2e – Zn(s) → Zn 2+ (aq) + 2e – H 2 (g) → 2H 1+ (aq) + 2e – Au(s) → Au 3+ (aq) + 3e – Which reaction in this list is NOT spontaneous?

Tro IC.3 1.Mg 2.Zn 3.Au 4.All of the above 5.Two of the above Based on the following activity series, with the most active metal at the top: Mg(s) → Mg 2+ (aq) + 2e – Zn(s) → Zn 2+ (aq) + 2e – H 2 (g) → 2H 1+ (aq) + 2e – Au(s) → Au 3+ (aq) + 3e – which metal in the list below will dissolve in hydroiodic acid, a strong acid?

Tro IC.3 1.Mg 2.Zn 3.Au 4.All of the above 5.Two of the above Based on the following activity series, with the most active metal at the top: Mg(s) → Mg 2+ (aq) + 2e – Zn(s) → Zn 2+ (aq) + 2e – H 2 (g) → 2H 1+ (aq) + 2e – Au(s) → Au 3+ (aq) + 3e – which metal in the list below will dissolve in hydroiodic acid, a strong acid?

Tro IC.3 1.Mg 2.Zn 3.Au 4.Mg 2+ 5.Au Based on the following activity series, with the most active metal at the top: Mg(s) → Mg 2+ (aq) + 2e – Zn(s) → Zn 2+ (aq) + 2e – H 2 (g) → 2H + (aq) + 2e – Au(s) → Au 3+ (aq) + 3e – which metal listed is the most resistant to corrosion?

Tro IC.3 1.Mg 2.Zn 3.Au 4.Mg 2+ 5.Au Based on the following activity series, with the most active metal at the top: Mg(s) → Mg 2+ (aq) + 2e – Zn(s) → Zn 2+ (aq) + 2e – H 2 (g) → 2H + (aq) + 2e – Au(s) → Au 3+ (aq) + 3e – which metal listed is the most resistant to corrosion?

Tro IC.3 1.Protons 2.Electrons 3.Neutrons 4.Quarks 5.Alpha particles The usual electric current in a wire is the flow of:

Tro IC.3 1.Protons 2.Electrons 3.Neutrons 4.Quarks 5.Alpha particles The usual electric current in a wire is the flow of:

Tro IC.3 1.Oxidation 2.Reduction 3.Electrolysis 4.Redox 5.Combustion In an electrochemical cell, __________ occurs at the cathode

Tro IC.3 1.Oxidation 2.Reduction 3.Electrolysis 4.Redox 5.Combustion In an electrochemical cell, __________ occurs at the cathode

Tro IC.3 1.A cathode 2.An anode 3.A salt bridge 4.A wire 5.All of the above are components Which of the following is NOT a component of an electrochemical cell?

Tro IC.3 1.A cathode 2.An anode 3.A salt bridge 4.A wire 5.All of the above are components Which of the following is NOT a component of an electrochemical cell?