ment Booklet A2 O ▬▬▬▬▬▬▬▬ 12. A student listed the following possible reactants in redox reactions: Iron and copper(II) sulfate solution Silver and calcium nitrate solution III. Zinc and lead(II) nitrate solution IV. Copper and lead (II) nitrate solution V. Magnesium and zinc nitrate solution Which combination will reacts spontaneously in a redox reaction? A. I and II B. I, III, and IV C. I, III, and V D. V only 13. I. II. Which is least reactive with aqueous solutions of metal ions? A. Tin B. Zinc C. Gold D. Calcium The Reduction and Oxidation of Metals 14. A block of magnesium attached to an iron pipeline running through moist soil may prevent the pipeline from oxidizing and corroding. Magnesium is a very reactive metal. When attached to the pipeline, the magnesium will corrode and keep the pipeline a cathode. Based on this form of protection, which of these metals can protect an iron pipeline from corrosion? A. Zinc B. Lead C. Copper D. Silver

Q: What is the oxidation number of element underlined in the following element, compound and on? a.…

A: Note: Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: OH H3C. `NH2 H3C. ОН H3C `NH2 OH H3C. Но NH2

A: These reactions come under the category of Phase I metabolism which is basically happen in liver by…

Q: Which of the following is a reducing agent? a. Br2 b. I2 c. F2 d. O2 e. Na Which…

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Q: Given the reaction: 2 Al(s) + 3 Br2(g) → 2 AlBr3(g) How many moles of aluminum will react with 2.75…

A: The given reaction is: 2 Al (s) + 3 Br2 (g) → 2AlBr3 (g)

Q: What is the oxidation number of N in NO2-1? а. -3 What is oxidation number of Cr in Cr2072-? b. +4…

A:

Q: The total number of electrons transfered in the balanced redox reaction is... Al  +  Sn2+  ⟶   Al3+…

A:

Q: 6. Use the reaction below to answer the following questions. /8 points 3 Mg + N2 → Mg,N2 a. Which…

A:

Q: 1. For the following reactions: a. Write a balanced equation b. Identify the reaction as…

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Q: When Zn metal was dipped in a solution of acid, it released hydrogen gas. This reaction can be…

A: Oxidation is defined as increase in oxidation state of the element.It can also be defined as…

Q: 2. FeS FeCl Precipitation 2HCI, -> (aq) 2 (aq) Neutralization Gas Production

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Q: Through each reaction are the molecules oxidized or reduced? A. Oxygen 6CO2 + 6 H2O ----> C6H12O6…

A: If the oxidation state of an element increases on the products side when compared to the reactants…

Q: atomic ions have an oxidatiIon equal to their charge. tomic ions and neutral cules have a charge…

A: Oxidation state is the hypothetical charge developed on an atom  when it is separated from other…

Q: Cr + 6NO3¯+ 6H*6NO2 + CIO;+3H20 In the above reaction, the oxidation state of chlorine changes from…

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Q: 5. N atoms can have a wide range of oxidation numbers. Assign oxidation numbers for the N atom in…

A: Oxidation number of O = -2 Oxidation number of H = -1 Oxidation number of Na = +1

Q: doesn't change anything or compromise the data. 6. A titration may be done on any reactive pair of…

A: Molarity: Molarity is the number of moles of solute per one liter of solution. The symbol for…

Q: 8. Assign oxidation numbers, find reductant and oxidant atoms and tie them before and afte then…

A: Oxidation number of N increase from -2 to +3 . The oxidation number of Cl decreases from +3 to -1 ,…

Q: 3. a loss of oxygen during the process is called oxidation process A. True  B.False

A: To find: Whether the given statement is true or false

Q: mean in the chemical equation: water hydrogen + oxy %3D %3D What does the " a. to produce b. reacts…

A: ----> known as double headed arrow.

Q: Combustion reactions are also redox reactions. What are the oxidation states of the carbon atoms in…

A: Given combustion reaction is  CH4 + 2 O2 ——>  CO2 + 2 H2O We need to find oxidation states of CH4…

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A:

Q: Identify the reaction as to redox or non-redox. For redox reaction, determine what is oxidized and…

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Q: The REDOX reaction in the following is a. NaOH + HCI → NaCl + H₂O b. KOH+→ KCI + H₂O c. H2 + Cl2 →…

A:

Q: 2. Identify the reaction as to redox or non-redox. For redox reaction, determine what is oxidized…

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Q: WHAT IS MY OXIDATION NUMBER? Use the rules for assigning oxidation numbers to determine the…

A: we have to determine the oxidation states and fill the given blanks.

Q: Which of the following is not an example of redox reaction? a. CuO + H2 'n Cu + H2O b. Fe2O3 +3CO 'ʼn…

A:

Q: the oxidation number of sulfur atoms in thiosulfate O a. 2 O b. 2, 8 O c. 0, 4 O d. -2, 8

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Q: Which of the following metals will react with HCl to form hydrogen gas? A. Hg B. Au C. Cu D. Ag…

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Q: What is the oxidation number of chromium in the ionic compound ammonium dichromate, (NH4)2Cr₂O7? a.…

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Q: What reaction is 2 RbBr _, 2 Rb + Br2 Select one:  a. synthesis reaction  b. decomposition…

A:

Q: g. Fe3O4 h. OF2

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Q: Cr + 6NO,¯+ 6H*. →6NO2 + CIO3¯+ 3H2O In the above redox reaction, use oxidation numbers to identify…

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Q: II. Identify the oxidizing agent and reducing agent in each reaction. 1. 2H₂ + O2 → 2H₂O 2. Zn+S →…

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Q: Which reaction is not a redox reaction? a. KOH + HCI - KCI + H,0 b. 2K + Clz → 2KCI c. 2KCIO, - 2KCI…

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Q: 48. ** Questions # 43 through # 48 use the half reaction method to balance the following skeletal…

A:

Q: Given the following chemical reactions, identify the common changes found. A. Set 1 1. C+020 CO2 2.…

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Q: Match the chemical formula with its associated oxidation number of nitrogen (N).…

A: The oxidation state in molecular form is zero.

Q: 1. What substance is being oxidized in the reaction?  2 Na(s) + Br2(g) 2 NaBr(s) a. Na  b. Br2…

A: Answer:

Q: Find the oxidizing agent in the following balanced reaction (Please note that element X and Y are…

A: Detail description is given below

Q: Which substance functions as a reducing agent in the following redox reaction? Li+ MgO > Li20 + Mg…

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Q: which of the following reactions is not a redox reaction? a. C2H4 + 3 O2 -> 2 CO2 +2 H20 b. 2LiBr…

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Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.