Concept explainers
Interpretation:
From the given options, characteristics of the oxidation process has to be identified
Concept Introduction:
Oxidation:
Loss of electrons from an atom ion or molecule during a
Example:
Here
Oxidation number:
It is the charge of an atom, provided if the compound is composed of ions. On oxidation the oxidation number will increase and on reduction the oxidation number will decrease. It can be also called as degree of oxidation.
Example:
`
Oxidation number of
Oxidation number of
Oxidation number of
Oxidation number of
Here we can see that the oxidation number of copper is decreased and the oxidation number of magnesium is increased.
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Chapter 9 Solutions
General, Organic, and Biological Chemistry
- Question 25 Which is the oxidizing agent in the reaction below? Cr₂O7²- + 6 S₂03² + 14 H+ O Cr₂O7²- O S203²- O S4062- OH A Question 26 2- 2 Cr³+ + 3 S406²- + 7 H₂Oarrow_forwardConcept Check on Oxidation and Reduction 1. True or false: When a substance is oxidized, it loses electrons 2. True or false: When a substance gains electrons, it is reduced. 3. True or false: When Zn is converted to Zn2* ion, zinc is oxidized. 4. True or false: Oxidation can also be defined as the loss of oxygen atoms and /or the gain of hydrogen atoms. 5. True or false: When oxygen, O2, is converted to hydrogen peroxide, H2O2, we say that O2 is reduced. 6. In the reaction: 2 H2 (g) O2 (9) ---> 2 H20 (1) + a) Which species is oxidized and which species is reduced? b) Which species is the oxidizing agent and which is the reducing agent? 7) When a piece of sodium metal, Na, is added to water, H2O, hydrogen gas, H2, is evolved and sodium hydroxide, NaOH, is formed. a) Write a balanced equation for this reaction? b) Which species is oxidized and which species is reduced?arrow_forwardIn which of the following compounds does Cl have an oxidation number of +5 ?a) HClOb) KClO2c) Ca(ClO3)2d) more than one correct responsee) no correct response In which of the following sequences of sulfur-containing ions are the ions arranged in order of decreasing oxidation number for S?a) SO32–, SO42–, S2–b) SO42–, S2O32–, S2–c) S2O32–, SO32–, SO42–d) more than one correct responsearrow_forward
- HURRY ASAP I WILL RATE NO NEED FOR EXPLANATION WHICH OPTIN Which oxidizing agent do you use to apply the following conversions? HOCH2CH2CH2CH2CH2OH HO2CCH2CH2CH2CO2H KМn04, 0H-,ısı РСС/СН2Сl2 H2, Pt NaBH4 LiAlH4arrow_forwardVISUALIZATION Batteries Zn(s) + 2 OH (aq) Zn0(s) + H20(2) + 2e 00 Hg0(s) + H,D(2)+ 2e Hg() + 20H"(aq) How many electrons does each Hg2+ ion gain when being reduced at the cathode? Check Next (2 of 6) Submit Answer Try Another Version 3 item attempts remainingarrow_forwardQuestion: G, Harrow_forward
- What is the oxidation number of carbon in each of the following carbon-containing compounds? Type your answer with a charge proceeding the number. For a charge of zero, do not use a + or - sign. For example +4, -3, -1, +1, 0, etc. DO NOT Spell DO NOT put a space between the charge and the number For a plus sign use + For a negative sign use - a) CO answer b) CCl4 answerarrow_forwardUse the References to access important values if needed for this question. N2H4 + CIO+ H2O cr + 2NH2OH In the above reaction, the oxidation state of chlorine changes from to How many electrons are transferred in the reaction? Submit Answer Try Another Version 2 item attempts remaining t pt pt I pt 1 pt 1 pt Previous Nextarrow_forward10) The average electrical current (I in ampere) delivered if 1.0 g of zinc were oxidized to zinc(11) in 60 second is: a) 24.6 A b) 49.2 A c) c) 11.9 Aarrow_forward
- QUESTION 24 When hydrogen reacts with calcium metal, what are the oxidation numbers of the calcium and hydrogen in the CaHz product? Ca(s) + H2(g) --> CaH2(s) -2 and +1 +2 and -1 +2 and +1 O +1 and -2 QUESTION 25arrow_forwardPart A Which of the following is the strongest oxidizing agent? O Br2() OBr(aq) OAu(s) Ag(s) Au3+(aq) Submit Request Answerarrow_forwardExercise 37. Draw the products of each reaction. 1. NaCN 1. Br 2. H2О, "ОН 2. HOOČ COOH 3. H30*arrow_forward
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