Which of the following processes would be accompanied by a decrease in entropy? O H₂O(s) → H₂O(1) O H₂O(g) → H₂O(s) H₂O(1, 50°C)→ H₂O(1, 75°C) O H₂O(1)→ H₂O(g) O H₂O(s) → H₂O(g)

Q: A sample of oxygen at 40.°C occupies 820. mL. If this sample later occupies 1250 mL at 60.°C and…

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Q: Calculate the standard potential, E, for this reaction from its equilibrium constant at 298 K. X(s)…

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Q: Study the following phase diagram of Substance X. 32- solid liquid 200 400 temperature (K) Use this…

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Q: 5. Classify each nuclide as stable or unstable a. 232Th b. 20Ca 265 c. 104Rf d. Ag c. 1301 40 d.…

A: The stability of nuclide is determined by neutron to proton ratio. For atoms upto atomic number 20…

Q: Structures of monosaccharides are a) polymers b) pyranoses or furanoses c) aldoses or ketoses d)…

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Q: The heat released when one mole of water is formed from the elements is 1,198 kJ. An experiment was…

A: Given :- Specific heat capacity of water = 4.186 J/g.°C Volume of water = 2.0 L Density of water = 1…

Q: Draw the structure of the main organic product of the following reaction. EXPLAIN THE MECHANISM! OH…

A: Step 1 : PCC oxidation. Step  2: Aldol condensation. Step 3 : Hydrogenation,.

Q: Consider the following list of possible concentration cells. Which ones listed would have a positive…

A: for the concentration cell: Standard potential of the cell (E0cell) = 0V E0Cu2+/Cu = 0.34V E0Cu2+/Cu…

Q: The IUPAC name of the compound is (a) 5-formylhex-2-en-3-one (b) 5-methyl-4-oxohex-2-en-5-al (c)…

A: 1. Start numbering with functional group. Then write the IUPAC name. 2. Electrophile : Positively…

Q: The solubility of MX3 is 9.1 X 10-7 mol/L. What is the Ksp of MX3? O 0.0309 0.00974 0.0178 O 0.0135

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Q: Given the reaction and data below, calculate the equilibrium constant at 250 K and identify if the…

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Q: [CLO-6] Calculate the pMg in the reaction of 50 mL of 0.1 M Mg2+ (buffered to pH 10) with 25.5 ml of…

A: The explanation is given below-

Q: Which one of the following substances will have both dispersion forces and dipole-dipole forces O…

A: ->each molecule has dispersion force but dipole -dipole force exists only when there is…

Q: 3 moles of He and 1 moles of Ar are present in a window sign that has a total pressure of 1,222 mm…

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Q: مهله Benzil NH₂ NH₂ NaOH/ethanol -NH NH 5,5-diphenylhydantoin (Dilantin)

A: Step 1 : Benzilic acid rearrangement but here nucleophile is NH-. Then followed by intramolecular…

Q: What is the product of the following reaction? NaClO₂, H₂N-S-OH N--OH &-+| H₂O/THF b. d. НО. ze ze…

A: 1. Conversion of aldehydes to acids is achieved using NaClO2, H+. 2. Aldehyde reacts with p-methyl…

Q: 14) Which of the following reactions will not yield a ketone product? A) 1. Sia2BH/THF 2. H₂O₂/OH-…

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Q: 2. Quantitative analysis student Analytical analyzed an ore sample for its lead content and obtained…

A: Given, Experimental obtained mean value = 4.75 % True value = 4.50 %

Q: 4. (a) Chemical shift (8) value of CH and CH3 proton in [Al(acac)3] are 1.99 and 5.47 ppm,…

A: This question is based upon Inorganic NMR Spectroscopy.

Q: What structural feature is required to have an isotactic or syndlotactic carbon-based polymer?…

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Q: Glycolysis is the first step in the oxidation of fatty acids to produce energy. True or False

A: The given statement is Glycolysis is the first step in the oxidation of fatty acids to produce…

Q: At the same temperature, which of the following gases will have the fastest rate of effusion? A) CO…

A: Choose option for the fastest rate of effusion ?

Q: How many liters will 1.36 g of helium, He, occupy at 371 K and 705 mmHg? Report answer to one…

A: The ideal gas equation shows the relation between pressure, volume, temperature and no of moles of…

Q: Provide the reagents necessary for each step from the drop- down menus below. A [Select] B [Select]…

A: Step 1 : DEM reaction with NaOEt gererates anion. Step 2 : C-alkylation. Step 3 : Ester hydrolysis…

Q: Calculate pCd²+ at each of the given points in the titration of 60.00 mL of 0.0060 M Cd²+ with…

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Q: 12. A ring with a mass of 25.5 g appears to be pure silver. Rather than test for density, you can…

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Q: In a solution prepared by dissolving 0.100 mol of propionic acid in enough water to make 1.00 L of…

A: Given that 0.1 mol of propionic acid is dissolved to make 1 L solution . That is its concentration…

Q: Consider the phase diagram of kryptonite shown below. P (atm) 1. 10 20 30 40 50 60 70 T (deg.…

A: Phase diagram: The phase diagram represents the different phases of the substance and the pressure…

Q: KCI KHCO3 KOH NH4Cl NH₂F Reset Greatest aci

A: Higher the pH ,lesser is the acidic strength.  Acidic solution has pH less than 7 Basic solution has…

Q: The energy produced by stars is from.. fusion of hydrogen fusion of helium fission of uranium none…

A: Sun provides the energy to earth due to a nuclear reaction. This reaction provides an enormous…

Q: joules of energy requi to go from 0 °C to 25 wa chunk of hot copper at change for the copp

A: Using energy conservation,  Heat losss by copper = heat gain by water  Heat gain by water = 1900J

Q: 2. (a) The v(CO) of isoelectronic series [Mn(CO).], [Cr(CO)] and [V(CO) are 2090 cm 2000cm¹ and 1860…

A: All the parts of the questions are answered properly!!

Q: Chernobyl expelled lots of Cs-137 radioisotopes in the environment in 1986.  The half-life of Cs-137…

A: We have to calculate the radioactivity after 60 years.

Q: Enter your answer in the provided box. Given the following data, 2Hg² (aq) + 2e →→ Hg₂² (aq) E-0.92…

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Q: Br NH₂ PhCOCI Et3N

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Q: What is the electron pair geometry, lewis structure, molecular geometry, and hybridization of H2O?…

A: In the given question we have to find out the following for water.

Q: [Review Topics] Draw the product(s) of the following reactions. H₂C -CEC-CH3 Nal NH3(l) . Consider…

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Q: What is used as a form of basis when reading the output IR Spectroscopy? Choose one answer only. A.…

A: What is used as a form of basis when reading the output IR Spectroscopy ?

Q: One fission reaction that takes place in nuclear reactors is Isotope or particle 235U 139 235U + n →…

A: The explanation is given below-

Q: Which among the given molecules can exhibit tautomerism? Ph Ph I II III (a) III only (b) Both I and…

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Q: pressure of the gas in atmatm

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Q: 21) Synthesize the following compounds from benzene by multi-step synthesis. 1) 3,5-dibromo benzoic…

A: Benzene undergoes electrophilic substitution reactions -  1- nitration 2- sulphonation 3-…

Q: Which is incorrect?

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Q: What is the concentration of X2- in a 0.130 M solut Ka2 = 7.5 x 10-11. O 1.6 x 10-8 M 6.2 x 10-4 M O…

A: H2A H+ HA- I 0.130 0 0 C -x +x +x E 0.130-x x+y x+y Further dissociat is   HA- H+ A2,-…

Q: What is the oxidizing agent in the (unbalanced) reaction? Cu(s) + H(aq) + NO3(aq) → NO(g) + H₂O(+…

A: Given :-  Cu(s) + H+(aq) + NO3-(aq) → NO(g) + H2O(l) + Cu2+(aq)  To identify :- oxidizing agent in…

Q: hydrogen atom is initially four energy levels above the ground state (i.e., in the fourth excited…

A: If electron is in fourth excited state, then it is in 5th energy level.

Q: Give the products of the following reactions. CH3 (i) KMnO4, OH, A a.) (ii) H₂O* b.) CH3COOH + PC13…

A: R-CN reacts with H3O+ gives RCOOH.... KMnO4 is strong oxidizing agent...

Q: Interaction of the reagent K. Fisher with water leaks Choose one answer: a. in one stage O b. in two…

A: We have to tell the interaction of the reagent K. Fisher with the water leaks a. In one stage b. In…

Q: Check the box next to each molecule on the right that has the shape of the model molecule on the lef…

A: The correct answer is given below

Q: fusion reactions:

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