When the following equations are balanced using the smallest possible integers, what is the number in front of the underlined substance in each case? Al(s) + O₂(g) → Al₂O₂ (s) 2 1 O st 4 12 6

Q: Which describes the product for the reaction shown? 1) a monosubstituted alkene 2) a disubstituted…

A: In the given reaction the secondary alkyl bromide reacts with the sterically hindered strong base to…

Q: In the answer boxes, Indicate whether carbon 2 compound. Br |||| HO ***||||

A: Determination of R/S configuration at C-2 & C-3 atom of the given above compound?

Q: What is the relationship between the following compounds? constitutional isomers stereoisomers not…

A: Hey there! Answer: D (identical)

Q: Assign each mass spectrum to the molecule on the list. Write down the molecule that corresponds to…

A: A typical fragmentation of the molecular ion of a carbonyl compound having at least one gamma…

Q: Colligative Properties of Solution. Explain why surrounding your ice cream mixture with salted ice…

A: Here the colligative property that involved is Depression in freezing point . Salt lowers the…

Q: 23. Given AH+ [(NF3(g)] = -132 kJ mol-¹ and the bond enthalpy (D) data, D(N₂) = 946 kJ mol-¹ and…

A: The reaction between N2 and F2 to form NF3 can be represented as: N2 (g)+3F2 (g)→2NF3 (g)

Q: For the proton transfer shown, the equilibrium constant, K, = 10%. What is x? Ö: H pK₂ = 24 pK₂ = 36…

A: For reaction to be favorable ∆pka must be postive. ∆pka = pka(product-reactant) = 36-24 = +12…

Q: please skip this if you have already answered. I will only upvote if it is complete and correct.…

A: We have asked to complete each of the given statements correctly, And the correct statements are…

Q: Chemistry If a solution containing 89.895 g of mercury(II) perchlorate is allowed to react…

A: Here we are required to find the mass of precipitate formed.

Q: 2. Two composites are produced; one composite contains 30 vol% SiC particles, while a second…

A: The composite that contains the SiC in the form of fibers will will have the higher heat capacity.…

Q: oxidis see that the acetal was retained synthesis. HO ОН HO 10 روگرستاد سلاید موجودی CI 1. Mg, THF…

A: This is a basic reaction mechanism.  First step is protection of Ketone using one to diol.  Second…

Q: Q2/ Choose correct answer for each the following: 1) Claisen-Schmidt including reaction between a) 2…

A: Here we have to write the correct name of the reaction in the following given cases.

Q: но H Н 0 OCH3 О Он

A: Functional groups are nothing but "a group af atoms that are mainly responsible for the chemical…

Q: Multiple Choice Each of the numbered items or incomplete statements is followed by answers or by…

A: Titration is a chemical analysis technique used for finding the concentration of a substance in a…

Q: Based on the molecular orbital model, choose all of the following molecules or ions that are stable…

A: Choose stable molecules--

Q: 1. How many MOLECULES of xenon trioxide, XeO3, are present in 2.72 grams of this compound? molecules…

A:

Q: Study the diagram below, then fill in the blanks. *Assume all gases are at equal temp. and pressure.…

A: So here first we need to balance the equation as  1N2(g) + 3H2(g) ----------> 2NH3(g)  So the…

Q: Д + кмпод + женава Изот Hg Soy Но+ гласи)

A: (1)in this reaction kmno4 which oxidized alkene to diol this give 1 major product  (2)in this…

Q: 1.) Indicate the buffer system you have chosen to work with: ___   2.) What is the pH of buffer…

A:

Q: 7. A feed of brackish water at 25°C, composed of the following solutes, is to be purified.…

A: The osmotic pressure (π) can be calculated as: π=iCRT where i is the van't Hoff factor, C is the…

Q: POCH3 O A curved reaction arrow would start from the O in "OCH3. O A curved reaction arrow would…

A:

Q: Give their  IUPAC names

A: SEE BELOW

Q: nor nitrogen, and 61.18 % chlorine by mass. What is the empirical formula for this compound? To…

A: Empirical formula can be calculated using empirical table.

Q: Q2/A) Rank the following compounds toward increasing stability of carbanion ion, why 1) Acetophenome…

A: Answer -acetophenome(C8H8O)  < cyclohexanone(C6H10O) < propylacetone (C5H10O2) Carbanion - A…

Q: Assign each mass spectrum to the molecule on the list. Write down the molecule that corresponds to…

A:

Q: What is the major product of the following SN2 reaction? A B C D

A: Nucleophilic substitution biomolecular reaction (SN2): The bimolecular nucleophilic substitution…

Q: Choose the set of letters corresponding to the BEST answer. -an achiral amino acid -a basic amino…

A: An achiral amino acid is that amino acid that has no chiral center. Note: Chiral center is…

Q: Given that the normal boiling point of CH3COCH3 is 56 °C, which of the following statements about he…

A: The normal boiling point of CH3COCH3 is 56oC and the process is given as : CH3COCH3g,74oC,1 atm…

Q: Choose the set of letters corresponding to the BEST answer. -has four equivalent acidic hydrogens…

A: Organic chemistry is branch of chemistry in which we deal with organic reactions. Organic  reactions…

Q: The percent by mass of iron (III) in Fe₂S3 is %.

A: we have to calculate the mass percentage of Fe(III)

Q: 16.Sample preparation is necessary when the actual sample is so large that it is impossible to work…

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Q: Consider this reaction: CICH₂CH₂C1 (g) → CH₂CHC1 (g) + HC1 (g) At a certain temperature it obeys…

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Q: K₂SO3(aq) + MnCl₂(aq) → MnSO3(s) + KCl(aq) Express your answers as integers separated by commas.…

A:

Q: Draw the major E2 reaction product formed when trans-1-chloro-2-ethylcyclohexane (shown) reacts with…

A: given E2 reaction

Q: Can anyone show me the solution? 0.45 l =    dl 1dl =    l 740 cc =  l 33kg =     g 1000 ul =…

A: Note:  1 l = 10 dl = 1000 cc 1 kg = 1000 g 1 ml = 1000 ul 1 cc = 1 ml 100 cc = 1 dl

Q: The entropy of vaporization for a certain organic compound is 28.1 J/Kmol, and the boiling point is…

A: given data entropy of vaporization 28.1 J/kmol boiling T=51.7 ;c find out enthalpy of vaporization

Q: Which of the following reaction coordinate diagrams represents SN1 an

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Q: will

A: According to the question, we need to determine the redox reaction.

Q: Part D Calculate the boiling point for 21.5 g of decane, C10 H22, in 55.0 g CHCl3. Express your…

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Q: Multiple Choice Each of the numbered items or incomplete statements is followed by answers or by…

A: #60: Sodium carbonate, Na2CO3(s) is hygroscopic and contains moisture at normal room temperature.…

Q: Draw the most steble cheir conformation of the following cyclohexane.

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Q: please skip this if you have already answered. I will only upvote if it is complete and correct.…

A: We have asked to complete each of the given statements correctly, And the complete statements are…

Q: 2. For the following pairs of molecules, determine if their relationship is enantiomers,…

A:

Q: Choose the set of letters corresponding to the BEST answer. -gives two moles of QRS upon hydrolysis…

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Q: TF 7.In neutralization reaction titration, end point is revealed by the change in color of indicator…

A: All the questions have been answered with proper reasons.

Q: Hello good morning, we only saw very little of this topic and I did not understand it and this was…

A: Given the [α] value of pure S-enantiomer = +24 Observed  [α] value = +10

Q: 4. 5. Ted is sneezing and have watery eyes. What should he do? Tom haven't excreted in the past few…

A: Please find the below attachment.   Please rate helpful.............   Thank you.

Q: 1. (NH4)2CO3 + H₂O H₂CO3 + NH4OH A. Balance the Equation:

A: The Chemical reaction follows the law of conservation of mass. According to the law of conservation…

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

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Q: SBr4 (g) → S (g) + 2 Br2 (l)         ΔGo = 77.75 kJ    ΔSo = 125.2 J/K    ΔHo = 115.4 kJ What would…

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.