H-H + Н Н

Q: Draw Lewis structures for the following molecules and ion.  (c) H2O2   (a) NCl3 (b) OCS (d) ...

A: Lewis dot Structure is a very simplified representation of the valence shell electrons in a molecule...

Q: What is the calculated value of the cell potential at 298K for an electrochemical cell with the foll...

A: The standard reduction potential values are known and are as follows: The balanced chemical equatio...

Q: 14) 14) Given the thermodynamic data in the table below, calculate the equilibrium constant (at 298K...

A: The equilibrium constant (K) is related with standard Gibb’s free energy change as follows: Where, ...

Q: Predict whether entropy increases or decreases in each of the following reactions. (a) 2H2S (g)+SO2 ...

A:

Q: What is the result of a chain transfer to polymer? Give an example. • How do you account for the cha...

A: A) Chain transfer to polymer - The chain transfer may takes place in an already existing polymer cha...

Q: What kind of attractive forces must be overcome to do each of the following? a) Boil water. all of ...

A: a) Since water forms strong H bonds hence to boil water the H  bonds need to be overcome Also water ...

Q: What type of particle is captured and what type is emitted in the nucleosynthesis below?55Fe −−> ...

A: During the process of nucleosynthesis, new nucleii are synthasized from the existing nucleii and nuc...

Q: A student mixes 10.00 mL of a 0.00100 M solution of iron(III) nitrate with 2.00 mL of a 0.00200 M po...

A: A student mixes 10.00 mL of a 0.00100 M solution of iron(III) nitrate with 2.00 mL of a 0.00200 M po...

Q: The electron microscope has been widely used to obtain highly magnified images of biological and oth...

A: The equation between wavelength and momentum is given by  λ = h / p where λ = wavelength p = momentu...

Q: The following thermochemical equation is for the reaction of hydrogen chloride(g) with oxygen(g) to ...

A: From the equation, it is clear that 36.5g of HCl react with 36g water and release -114kJ of energy

Q: Draw the final product from the following six-step reaction sequence. 1. NaOCH3 2. Br. Br 3. NaOCH3 ...

A: The reagent NaOCH3 is mainly used for the purpose of proton abstraction from an organic compound con...

Q: ОН Common name: Systematic name • Delta shorthand notation Omega shorthand notation • Classification...

A:

Q: A solution has [OH ] = 1.9x10-2 M. Use the ion product constant of water Kw = [H3O+][OH¯] to find th...

A: Since Kw = [H3O+ ] X [OH-]  And Kw =  10-14              at room temperature  => Kw = [H3O+ ] X [...

Q: The body uses _________ for short-term energy storage and _______ for longer- term energy needs. tri...

A: ATP (Adenosine triphosphate), a nucleotide which is the most important short-term energy storage com...

Q: Enter electrons as e". Use smallest possible integer coefficients. If a box is not needed, leave it ...

A: The given reaction is,

Q: Synthesis of Fenclorac starting with benzene? Show all reagents and all intermediate structures. Ass...

A: The given compound is fenclorac.

Q: Draw Lewis structures for the following ions. Be sure to include all lone pair electrons and nonzero...

A: The atomic number of sulphur is 16. The valence electrons are 6. And required electrons to complete ...

Q: A 1.00-L gas sample at 100.°C and 650. torr contains 53.0% helium and 47.0% xenon by mass. What are ...

A: Formula that we use: 1. pi=xptotal     where pi=partial pressure of the gas, x=mole fraction of that...

Q: please highlight the correct answer

A: From given information it is clear that 1 gram of NNED is mixed with 1 L of water. Then, 0.2 g of NN...

Q: A 16.24 mL sample of dilute H3PO4 requires 40.52 of 0.108 M NaOH for complete neutralization.  Deter...

A: The reaction taking place is  3 NaOH + H3PO4 ----> Na3PO4 + 3 H2O Hence from the above reaction w...

Q: Which of the following atoms would be expected to form negative ions in binary ionic compounds and w...

A: Answer :- The atoms are - Ga , K , Tl ,Rb ,O ,Li , I , Cl , Au Binary ionic compound :-  these ionic...

Q: How many moles of HCl are there in 75.0 mL of 0.420 M HCl?

A:

Q: What is beta oxidation of fatty acids and it's steps?

A: Beta-Oxidation can be defined as a Catabolic Process through which molecules of fatty acids are sepa...

Q: letter d only thank you

A: Since in part c you have calculated density of Aluminium atom = 3.66 g/cm3  And It is given that 26 ...

Q: 1. Use the calculation of E° to determine which of the following reaction is spontaneous under stand...

A: Electrode potential values linked with every half reaction are useful in calculation of cell potenti...

Q: Calcium ΔHof (kJ/mol) ΔGof (kJ/mol) So (J/mol K) Ca (s) 0 0 41.4 Ca (g) 178.2 144...

A:

Q: I ReviewT ConstantsTPenodic Tabie At 298 K a cell reaction has a standard emf of +0.16 V. The equili...

A: Nernst equation is related to equilibrium constant (K) and standard emf. The Nernst equation can be ...

Q: Pb + NiO2+ H2O+ OH-  --->  HPbO2- + Ni(OH)2   In the above redox reaction, use oxidation numbe...

A: Given:

Q: What molecular ions would you expect for the compound depicted in the ball-and-stick model?

A: The black ball indicates Carbon atom. White ball represents hydrogen atom. Red ball reprrsents a hal...

Q: A buffer solution is prepared by dissolving 1.00 g of sodium acetate (CH3COONa) into 100.00 mL of a ...

A: On dissolving 1.00 g of sodium acetate (CH3COONa) to 100.00 mL solution, concentration of CH3COONa i...

Q: How many grams of alum will form if 0.3812 g of Al reacts completely?

A: Given, Mass of aluminum, Al = 0.3812g. The reaction of formation of alum from aluminum is as follows...

Q: The solubilities of the following compounds are given in grams per 100 mL of water. Because these co...

A:

Q: Calculate the pH of each solution. 9.09 x 10 2 М HЕг

A: In 9.09 x 10-2 M HBr solution, the concentration of H+ and Br- will be equal to 9.09 x 10-2 M.

Q: A researcher studying the nutritional value of a new candy places a 4.60 g4.60 g sample of the candy...

A:

Q: For mercury, the enthalpy of vaporization is 58.51 kJ/mol and the entropy of vaporization is 92.92 J...

A: Given that, Entropy of vaporization of mercury (ΔSvap) is 92.92 J/K⋅mol Enthalpy of vaporization of ...

Q: Draw the products formed in each reaction sequence.

A: Reaction of alkyl halide with PPh3 in the presence of BuLi produces phosphonium ylide which on react...

Q: Under standard-state conditions, what spontaneous reaction will occur in aqueous solution among the ...

A: The standard electrode reduction potential for Fe2+ ion and Ce4+ ion is shown below.

Q: In the laboratory a student finds that it takes 79.6 Joules to increase the temperature of 14.8 gram...

A: The specific heat capacity of copper (C) can be calculated using equation (1). In this equation, m r...

Q: ING AND MOLECULAR STRUCTURE Previous Page 16 of 16 Reforences Use the References to access important...

A: The higher the bond order, the stronger the bond and thus the shorter the bond.

Q: I only need: Classification: ( SFA, MUFA, PUFA) Classification: ( ESSENTIAL OR NON ESSENTIAL)

A: The given above fatty acid is a 18 membered fatty acid which is called as Linoleic acid with double ...

Q: When the Ag* concentration is 1.33 M, the observed cell potential at 298K for an electrochemical cel...

A:

Q: Benzene (C6H6) has a melting point of 5.50C and an enthalpy of fusion of 10.04kJmol-1 at 25.00C. The...

A: The melting point of benzene is 5.5 0C which means at 10 0C, it will exist in the liquid form. The h...

Q: (c) A piston at 3195 torr contains a gas that occupies a volume of 4.7 L. What pressure would have t...

A: Boyle's Law: At constant temperature, the pressure of an ideal gas is inversely proportional to the ...

Q: What is the pH of a solution in which [H3O]+ is 2.2 x 10-12 M? Group of answer choices 2.34 4.54 ...

A: It is given that the concentration of H3O+ in the solution is 2.2×10-12 M

Q: The structure of isopropyl alcohol is shown below. Predict its solubility in water and explain your ...

A: Isopropyl alcohol is soluble in water because it can form strong hydrogen bonds to the water. The so...

Q: Be sure to answer all parts. A 0.0700 M solution of a monoprotic acid is 0.980 percent ionized. Calc...

A: Ionization Constant of the acid can be defined as the quantity that describes how much acid is disso...

Q: Draw a stepwise mechanism for the following reaction.

A: The stepwise mechanism for the followinf reaction can be given as- Firstly, the Base (NaOEt) will ab...

Q: What are natural polymers? give some examples of it with it's importance and uses.

A: Polymers:  Monomers combine together to form polymers. Monomers are the repeating units of small mol...

Q: In each of the titrations performed in this experiment, the end point was apparent due to a color ch...

A: By adding an indicator which shows colour change at a particular pH values, we can observe the colou...

Q: Given the equation 2A(g) ⟷ 2B(g) + C(g) Raising the pressure by lowering the volume of the container...

A: Given: The equation is

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.