2. Write the Lewis dot symbols of the reactants and products in the following reactions. (First balance the equations.) a. Sr+Se --> SrSe D. Ca + H₂ --> CaH₂ C. Li + N₂ --> Li3N N2

Q: What is the maximum orbital degeneracy of orbitals in the following point groups: (a) C₂v (b) Td (c)…

A: The orbital degeneracy of molecular orbitals in different point groups is determined by the…

Q: Consider the structure below for the [EO₂F]2 ion. Note: E represents an unidentified element. :8:…

A: The formal charge (FC) is the charge assigned to an atom in a molecule, assuming that electrons in…

Q: 3+ Calculate the pH of a 0.038-M A1 (NO3)3 solution. The K₂ value for Al (H₂O) is 1.4 x 10-5. pH =…

A: The objective of the question is to determine the pH.It is given that,The concentration of  is .The…

Q: Draw the major product of this reaction. Ignore inorganic byproducts. 1. BH3-THF 2. H2O2, NaOH

A: Given,The reaction is:

Q: Which of the following is an extensive property of matter? temperature boiling point density mass

A:

Q: The following data set and reactions will be used in several questions about an unknown mixture of…

A: The sodium bicarbonate on heating it produces carbon dioxide, water and sodium carbonate,The…

Q: Which of the following are examples of redox reactions? Choose all that apply. 2HBr (aq) + Ba(OH)2…

A: Answer:When in a chemical reaction oxidation and reduction take place simultaneously then such…

Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N₂] [H₂]…

A: Given,

Q: Which reagents would afford the product shown? 1 2 OH OH₂SO4, conc.; 2. H₂O ONBS, heat; 2. Na2Cr2O7,…

A: Given is organic synthesis reaction.In which reactant is toluene and product is benzyl alcohol.

Q: Dehydration of an unknown alcohol with concentrated H₂SO4 results in the formation of all of the…

A: Given question is based on dehydration reaction. This is an elimination reaction and follows E1…

Q: Draw the thermodynamic product for the reaction

A: Alkene reacts with hydrochloric acid to form stable carbocation first, followed by a reaction with…

Q: Predict the major product for the following reaction: O CH₂ NH₂ -N [H+] (-H₂O) Modify the given copy…

A: Ketone reacts with amine in acidic medium to produce imine as the product.

Q: Draw the structure of the product that is formed when the compound shown below undergoes an…

A: Alkyl halide gives an elimination reaction by reacting with a strong base. E2 reaction involves a…

Q: Questior Draw four additional valid resonance contributing structures for the compound depicted…

A: A question based on introduction to organic chemistry.. The structure of a cyclic compound is given…

Q: Which 2 molecules are expected to have the lower Rf values of the 4 compounds? (select 2 responses)…

A: Thin layer chromatography (TLC) is a method of separating components of the mixture. It is based on…

Q: A catalyst decreases the activation energy of a particular exothermic reaction by 33 kJ/mol, to 25…

A: Activation energy of catalyzed reaction = 25 kJ/molActivation energy difference between the…

Q: What is the purpose of washing the organic phase with brine solution? Select one: O a. O b. To…

A: The objective of the question is to give the purpose of washing the organic phase with the brine…

Q: . Provide the product and an arrow pushing mechanism for the reaction shown below. MeOk then شد

A: Given is organic reaction.This is Aldol addition reaction.In this reaction aldehyde or ketone reacts…

Q: Which alkene would you expect to have the smallest heat of hydrogenation? I IV Alkene V Alkene Il…

A: The stability of alkene depends on the number of alkyl groups attached to the carbon atom of the…

Q: Choose the major product of the following reaction. HBr 50 °C ? Br 3 Br

A: HBr adds across unsymmetrical double bonds following the Markovnikov rule. 1,2- and 1,4- addition…

Q: Which of the following represents the product of the below reaction? H₂O, Cat

A: 1) This reaction is an example of conjugate addition of water to the unsaturated ketone.2) This type…

Q: Explain in detail why the following reaction will produce the indicated product in negligible…

A: This is Aldol condensation reaction. Based on the stability of carbeneanion produced, this reaction…

Q: Draw the major product of this reaction. Ignore inorganic byproducts and CO₂. || 1.0₂ 2. Zn, HOẶC

A: Given is organic reaction. This reaction is known as Ozonolysis reaction.Ozonolysis reaction…

Q: Write down the Hamiltonian and the energy, and sketch the potential and energy level diagrams for…

A: a) Particle in a boxA particle in a 1-dimensional box is a fundamental quantum mechanical…

Q: 19. What conditions given below would you predict to generate the highest amounts of the product…

A: Here alkene is  formed  by an elimination reaction. Alkene formed here is less substituted for…

Q: Draw a structural formula of the SS configuration of the compound shown below. S S

A: Given is organic compound.Given compound has two stereocenters.Both stereocenters have S,S…

Q: If 150 mL 0.0180 M Ni(NO3)2 and 125 mL of 0.25 M ammonia (NH₂) are diluted to 500 mL with deionized…

A:

Q: Draw the major product of this reaction. Ignore inorganic byproducts and CO2.

A: In the given reaction the alkene reacts with acidified potassium permanganate (KMnO4) to break the…

Q: Nitroglycerin is a dangerous powerful explosive that violently decomposes when it is shaken or…

A: 1. The chemical reaction is the decomposition of liquid nitroglycerin to gaseous dinitrogen, gaseous…

Q: Consider the reaction shown below: 2 A (g)=B (g) Kp = = 4.60 × 10-5 If the reaction vessel begins…

A: Consider the reaction shown below:2A(g)  <=>   B(g)   &      Kp = 4.60 x 10-5

Q: Consider the following pH titration curve of a diprotic acid. What is the approximate values for pka…

A: Answer:During the titration of weak acid and strong base, with the addition of base pH of the…

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into…

A: Given : heat flows into the system, Q = +191 KJ where positive sign of heat indicates it is added to…

Q: proceed? Part1: C/.. answer=[Select] part2: CH3 answer= [Select] NaOH CH3OH OCH₂CH3 + -> ? NaCN

A: The first reaction is goes via SN1 and second reaction is goes via SN2 reaction mechanism.SN1 and…

Q: Of the following, which atom has the smallest atomic radius? OK C Se Cu Ti

A: It increases as we move down the group because of the increase in shell number.It decreases as we…

Q: 5. Identify the reagent (and its concentration) that is used to confirm the presence of each of the…

A: The question is related to the Inorganic qualitative analysis.

Q: Calculate the energy (in kJ) required to heat 0.142 grams of water from -46.1 °C to -6.8 °C.

A: Answer:Here:

Q: The structure of lactic acid is depicted below: The S-enantiomer has a specific rotation of +2.6…

A: Enantiomers are non-superimposable mirror images of each other. If one of the enantiomers has the S…

Q: Predict the organic product on reaction of butyraldehyde with Ph3P-CHPh. B. شد -નુષ્પત C. D. كرة

A: Wittig reaction of aldehyde Wittig reaction is an organic chemical reaction wherein an aldehyde or a…

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.