How is the protons, neutrons, and elctrons calculated for chemical Elements. And it the protons and electrons always similar to the atomic number

Q: A 6.60 g sample of Fe3O4 reacts with O₂ to produce Fe₂O3: 4Fe3O4(s) + O2(g) →6Fe2O3(s) Determine the…

A: As per the Given equation: The molar mass is: Fe3O4 = 231.4 g mol-1 Fe2O3 = 159.6 g mol-1

Q: When benzene loses one of its hydrogen atoms, it is called phenylene True Error

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Q: 20- The pH of (0.2M) of Ca(OH)2 is 0.397 13.302 13.603 0.698

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Q: Polyurethane is a very common polymer that being used in various application from rigid interior…

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Q: 4) Chromium has four isotopes. Chromium-50 (mass of 49.946 amu and 4.35% abundance), chromium-52…

A: Given,  The chromium four isotopes are Chromium-50, (mass= 49.946 amu, % of abundance = 4.35% ),…

Q: Question 1 (a) On the reaction profile below label the transition state(s), intermediate(s) and…

A: A question based on kinetics of reaction that is to be accomplished.

Q: The pH of a solution is (6.5x10^0). What is the [OH-]? Report your answer to 2 sig figs. Note: Your…

A: Given, pH of the solution = 6.5 × 100 = 6.5 Concentration of the OH- ion = [OH-] = ? The formula…

Q: HBr 500 HCI - 10C

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Q: 1. How many grams of Magnesium hydroxide required dissolved to form a solution at 0.1 N. if the…

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Q: Choose which bond represents an intermolecular bon b neither a nor b Choose which bond represents a…

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Q: Using a mass of 0.63 g baking soda you started with initially, calculate the mass (g) of solid…

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Q: Thioester hydrolysis yielding more energy than O-ester hydrolysis is ultimately due to Bond between…

A: Because the thiol (sulphur) in the product of thioester hydrolysis contains less energy than the…

Q: For the first-order reaction 1/2 N₂O4(e)-NO₂(g): AH-28.6 W the rate constant is k-3.24 x 10 sat-7°C,…

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Q: A) the equation for your graph B) the R2 value C) what is the relationship (from the graph)…

A: We have to plot a graph of the mass of the sample versus the mass lost due to heating.  Hence we…

Q: What are the allowed values for each of the four quantum numbers: n, 1, m,, and m? (A) n=(1-8); 1=…

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Q: Which of the following are at equilibrium? Check all that apply.   The rate of the forward reaction…

A: Reactant are present on left side of reaction and products are present on right side of reaction

Q: Write at least 4 different oxidation reactions for any hexose.

A: The hexose, glucose has the molecular formula C6H12O6.

Q: A hydrocarbon is a compound that contains carbon and hydrogen only True Error

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Q: For the first-order reaction 1/2 N204 -> NO₂(g); AH 28.6 kJ the rate constant is k= 3.24 x 10^5 s^-1…

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Q: 3. You place some solid copper(1) chloride CuCl in a beaker of distilled water. You measure the…

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Q: 2) What is the energy of crystallization for potassium fluoride, given that, for potassium: -89.2…

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Q: OM OM Heat NOE! H

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Q: What is the mass, in grams, of exactly 230 sodium atoms? Would it be the same answer only in grams?…

A: Steps to convert atoms to grams • Convert atoms to moles - Divide the number of atoms with Avogadro…

Q: Use your graph equation to calculate the expected mass loss for your Epson salt sample, then  use…

A: Mass of the sample (x) 1.03 3 1.06 3.16 Mass loss on heating (y)  0.59 0.56 0.47 1.62

Q: What is the IR and HNMRAndCNMR and mass in this example

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Q: Heated lithium atoms emit photons of light with an energy of . What is the calculated frequency and…

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Q: Under certain conditions the rate of this reaction is zero order in hydrogen iodide with a rate…

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Q: A 6.60-g sample of Fe3O4 reacts with O₂ to produce Fe₂O3: 4Fe3O4(s) + O2(g) →→→ 6Fe2O3(s) Determine…

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Q: Communication: 10 5. For the equilibrium systems: 250+0 CH+H₂O 2 50+ heat [exothermic)->Temperature…

A: A question based on equilibrium concept that is to be accomplished.

Q: Calculate the pH NaOH to 2.0 L o

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Q: A 6.60-g sample of Fe3O4 reacts with O₂ to produce Fe₂O3: 4Fe3O4(s) + O2(g) →→→ 6Fe2O3(s) Determine…

A: Given, 4Fe3O4(s) + O2(g) → 6Fe2O3(s) mass of Fe3O4 reacts = 6.60 g Excess reactant: O2 mass of Fe2O3…

Q: Its concentration is 0.07 molarity (K2Cr207) What is the number of milligrams equivalent of 43.50…

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Q: If a solution containing 109.90 g of mercury(II) nitrate is allowed to react completely with a…

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Q: iii. iv. H₂N CH3 CH3 CH3 CH3 CH3

A: Naming of the following compounds as per the IUPAC nomenclature is given as follows-

Q: are

A: Metallic bond is the type of chemical bonding that arises from the electrostatic attraction between…

Q: Problem 17 C3H6O 개 H ddt, 1H 6.0 H H 나 5.0 dd, 1H dd, 1H 재 4.0 d, 2H 3.0 H brs, 1H

A: The proton NMR gives signal for different types of hydrogen atoms.  This helps to know the different…

Q: 1.   Given the reaction 2SO2(g) + O2(g)  2SO3(g) + energy, a decrease in pressure will cause the…

A: As per our guidelines, we are supposed to answer only one question with three subparts. Kindly…

Q: When the following solutions are mixed together, what precipi- tate (if any) will form? a. FeSO4(aq)…

A: Here double replacement reaction takes place in all four equations .Double Replacement : It is a…

Q: Question 1: Choose the right answer, besides Justifying your choices 1. A battery cell stores energy…

A: To answer the questions we need to understand what all are asked in it.  1) We are asked to find how…

Q: Can greening propane from Mullein reaction from sodium with ethane iodide methane iodide True Error

A: Mulleine is herb, it grows in acidic soil,It is used in whooping cough, flu,colds.

Q: 4 55 56 57 Cs Ba La 112.9055 137.34 138.9055 88 89 Fr Ra Ac (223) 226.02.54 Select one: O a. Cs > K>…

A: We know that the atomic size increases in a group when we move from top to bottom. Thus the energy…

Q: A chemist measures the pH of various solutions in a laboratory setting. The results are as follows:…

A: pH is used to measure the acidity or basicity of a solution. The range of a pH scale is from 1 to…

Q: Problem 1. What are products formed from the below reaction? Draw the stereoisomers and name them.…

A: Addition of HCl to alkene proceeds via the formation of carbocation intermediate.  The H+of HCl…

Q: palmitoyl chloride A B Distilled acetone, Reflux (1H) C Alanine, Reflux (18 H) Methanol,…

A: The reactant is palmitoyl chloride, which is an acid chloride. The reactant undergoes 3 different…

Q: in g of hexane-2-ol formed from 11.0 cm3 of hex-1-ene if the yield is 31.0% Give your answer to 1…

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Q: 4.T/ For each of the following weak monoprotic acid concentrations, determine the percentage of…

A: solutions

Q: Convert the structure below to a skeletal drawing. ball & stick labels You do not have to consider…

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Q: Calculate the equilibrium concentration of Zn2+ in a solution initially with 0.150 M Zn2+ and 2.50 M…

A: Solutions                       Given that initially Zn2+ = 0.150 M         CN–      = 2.50 M Ksp…

Q: The reaction of ozone with 2-butene leads to -10 formation of aldehyde + ketone 0 aldehyde + alcohol…

A: Here we have to determine the correct products formed by the ozonolysis of 2-butene .

Q: IR Spectrum 4000 100 3000 40 13C NMR Spectrum (500 MHz, CDC, solution) 80 DEPT CH CH. CH proton…

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