3. Use the changes in oxidation numbers to identify which atoms are oxidized and which are reduced in each reaction: a. 2H2g) + O2g) → 2H2Om b. 2KNO3(6) → 2KNO2(s) + Oz(g) c. NHẠNO2(s) → Nzg) + 2H2O(g)

Q: Consider three 1-L flasks at STP. Flask A contains NH3 gas, flask B contains NO2 gas, and flask C…

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Q: Arrange the following 0.01 M substances in order of increasing pH. HNO3: pKa = -1.38 HNO2: pKa =…

A: Given data HNO3:  pKa= -1.38 HNO2:pKa = 3.14 HClO: pKa = 3.18 NH3: pKb = 4.74 CH3NH3: pKb = 3.36…

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Q: For which of the water solutions the boilling point is the highest? а. c(NaCI) = 0.85 mol/L b.…

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Q: Complete the following statement: Resulting from the electron capture of (A)-168 is a daughter…

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Q: Consider the following titration curve for a diprotic acid H2A: pH 1st value on the graph given 5.0…

A: A diprotic acid contains two proton that can produce two H+ ions.

Q: 10) What will be the final pressure of a sample of nitrogen with a volume of 856 cm3 at 661 torr and…

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Q: A mixture of gases contains 313 torr N2, 275 torr O2, and 286 torr Ar. What is the total pressure of…

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Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 2.5 g remain. What is the original…

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Q: НО ОН NaBH4 Cl3C CląC H H,0

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Q: Phenolphthalein reacts to basic solutions (pH above 7) by changing to a pink color. If you had…

A: To turn the solution pink , the pH should be raised to pH = 7 or above.

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A: 1.) From given cell , firat we would write possible half reactions as per given compounds and…

Q: (Q67) What is the entropy change (in J/K) in the universe (ASuniverse) that occurs when nitrogen and…

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Q: Using a Gabriel synthesis, show how you would make the following compound: NH `NH2 The…

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Q: Instructions (questions 36–40): Consider the following reactions. Draw ALL POSSIBLE PRODUCTS,…

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Q: Acidic buffers consist of: a. a weak acid and a salt, that formed from a weak acid and a strong…

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Q: INTERACTIVE EXAMPLE Balancing Oxidation-Reduction Reactions (Basic) Balance the following…

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Q: Study the reaction show below: NH2 NH2 H,NO2S- -N=N- - NH2 H,NO2S- - NH2 + H,N- -NH2 > Identify the…

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Q: Identify which category the molecule below belongs to: O: H2N-C- -C-OH ČH2OH carbohydrate O lipid…

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Q: 7. Use the following data to determine the rate law for the reaction 2NO+H,N,0 + H,O. [NO) (M) Exp…

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Q: What will be the new pressure in torr for a sample of gas which occupies 1.50L at 25°C and 725 torr…

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Q: What volume (in L) of 0.015 M NAOH must be added to G.50 L of 0.20 M HCI to give a solution with pH…

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Q: The vapor pressure of chloroform is 173.11 mm Hg at 25°C. How many grams of testosterone, C19H2802,…

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Q: Balance the following redox reaction in basic solution. MnO4-  +  S2- → MnO2  +  S

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Q: Br

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Q: URIC ACID vs. CYSTINE II. Complete the table. Choose the answer from the box below.   URIC ACID…

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Q: Shell #2 of an uncharged CARBON atom contains ___ electrons. 6 4 8 12 2

A: Detail description is given below

Q: 9. Will a precipitate form when in an aqueous solution of 2.1 x 10 *mol·L lead (II) nitrate is added…

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Q: Balance the following oxidation-reduction reaction that occurs in an acidic solution using the…

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A: The balance chemical reaction :  N2(g) + 3H2(g) ----> 2NH3(g)  Mass of nitrogen = 8.0 g  Mass of…

Q: The equilibrium concentration of calcium ion in a saturated calcium sulfide solution is _____ M

A:

Redox Reactions

Redox reactions are considered to be the chemical reactions involving both oxidation and reduction processes. They are actually oxidation-reduction reactions. The term redox is made from two words where “red” comes from reduction and “ox” comes from oxidation. During a redox reaction electron transfer takes place in such a way that one chemical compound gets reduced and the other one gets oxidized.