Write the electric configuration. Of hydrogen

Q: ow many valence electrons are there in group 2 elements? A 1 B 2 C 4 D 8

A: Group 2  element are also known as alkaline earth metal.beryllium ,magnesium ,calcium,…

Q: Using the following bond energies, calculate the molar heat of hydrogenation, AHhydrogenatio…

A: Bond strengths given;  C-H = 411 KJ/mol  H-H= 432 KJ/mol  C -C = 348 KJ/mol  To calculate the heat…

Q: Ferrocene, Fe(C5H5)2(s), can be prepared by reacting 3.0 g of FeCl2(s) with an equal mass of…

A: A limiting reactant is a reacta that gets consumed first in the reaction.  Percent yield=(actual…

Q: What are used to represent valence electrons in a A arrows B dots C lines D numbers

A: Lewis structure is a type of diagram which show valence electrons

Q: For each of the following reactions, balance the chemical equation, calculate the emf, and calculate…

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Q: a. Propose a method for how you would resolve (±)-2-chloropropanoic acid [(±)-RCOOH] using…

A: a) A racemic mixture is a 50:50 mixture of two enantiomers. Here 2- chloropropanoic acid has D and L…

Q: ate the жаз тон аррrоряйте rеадени 7 t СИ енз

A: Organic reactions are those in which organic reactant react to form organic products. In the given…

Q: H3C 1-propanol a What is the reason for KOH reacting with 1-propanol? b с Select an answer and…

A: Here the reaction between 1- propanol and KOH is given. We need to choose the correct reason for the…

Q: Use Coulomb's law to calculate the energy of a magnesium ion and an oxide ion at their equilibrium…

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Q: 1. Complete the following reactions by writing missing reactant(s), reagent(s), or product(s). a. b.…

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Q: How many grams are required of NaoH to make 50mls of a 0.25M solution of NaOH ? (give your answer…

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Q: ㅁ H ㅁ HO ㅇ 2 - 1+

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Q: Draw a complete structural diagram for 1-ethyl-4methylcyclopent-1-ene

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Q: A mole of an ideal gas is compressed isothermally at 298K. If the gas is compressed from 1 atm to 10…

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Q: You have 25.0 g of sodium chloride, NaCl and 25.0 g of magnesium chloride, MgCl2. Which sample…

A: Molar mass of NaCl = 58.44 g/mol  Molar mass of MgCl2 = 95.2 g/mol  Given Mass of NaCl= 25.0 g…

Q: A chemist prepares a solution of sodium bromide   NaBr    by measuring out  30.9mg  of  NaBr…

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Q: the 5. Propose transformation showing the intermediate and lesing curved arrow to show the election…

A: The mechanism of given reaction can be explained as:

Q: 1.Hg(OAC)2, H₂O 2. NaBH4 1.Hg(OAC) 2, 2. NaBH4 1.BH3, THF 2. NaOH, H₂O OH

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Q: What is the mass percent of Na2CO3 (molar mass: 105.988 g/mol) in a 1.500 g sample if mixing it with…

A: Given, Na2CO3(s) + 2HCl(aq)  --->  H2O(l) + CO2(g) + 2NaCl(aq) mass of sample = 1.500 g mass of…

Q: Determine the normality of bromide ion when 0.771 g of calcium bromide is dissolved in water and…

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Q: HBr Br + Br + Br

A: Reaction of HBr with 1,3-butadiene (CH2=CH-CH=CH2) gives two products. 1) One is (CH3-CHBr-CH=CH2),…

Q: 2. Write the chemical reaction equation associated with each of the following: a. Heat of formation…

A: This question belong to thermodynamics that is thermochemistry. Heat of Formation: heat of formation…

Q: The molar mass of sugar is 180.16 g/mol. If 1801.6 grams of sugar was used in the alcohol…

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Q: 4. Rank the following reactions in terms of rate for an SN2 reaction (1 reactions not possible? Br…

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Q: Write the structure of the organic product that results when: a. phenol is added with iron (III)…

A: a) When Iron(III) Chloride added to the phenol gives coloured solution  b) When the tertiary…

Q: 22. Using propene and bromo-ethane as the only sources of carbon and using any reaction conditions…

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Q: Calculate the entropy of mixing (in J/K) when 1.29 mol of hexane is mixed with 2.49 mol of heptane…

A: we are given mixture of two gases hexane and heptane and asked to calculate entropy of mixing.

Q: 300 mL 180 mL 500 mL 125 mL Question 7 ( A gas has an initial pressure of 2 atm at 50°C. What is the…

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Q: 50.0 mL of 0.133M HC3H5O2 (Hydrazoic acid) (Ka = 1.9 x 105) is titrated with 0.346 M KOH, determine…

A: We need to find the pH of the given titration. Here, hydrozoic acid is titrated with KOH. Molar…

Q: 3. A student added calcium to water and measured the increase in temperature to determine AH for the…

A: "Since you have posted a multiple sub-part question, we will solve the first 3 sub-parts for you.…

Q: 1. 4 3 100 50 Identify the following compounds based on the spectra given. 20 30 2000 220 200 180…

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Q: Draw the major product of this reaction. Ignore inorganic byproducts. CI excess CH3NH2

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Q: Br H3C CH3 a b с ionization d 1-propanol e Prelab Question #4 Homework Unanswered H H 8+ With…

A: We have to tell about the given reaction mechanism. We have to tell, among the given statements,…

Q: H3O+, KMnO4 cold dilute neutral KMnO4 1. 03 2. Zn, H3O+

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Q: 3. Estimate Eº for the half-reaction 2H₂O + 2e → H₂ + 2OH* given the following values of AG : H₂O(l)…

A: Given:

Q: One way in which the useful metal copper is produced is by dissolving the mineral azurite, which…

A: The volume of the copper(II) sulfate is = 450. mL The mass of copper present in this solution is =…

Q: Concentration=2.5 X 10^3  μM OD400nm=0.859 1cm cuvette is used what is the extinction coefficient…

A: The extinction coefficient can be calculated as:

Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: Given, Reaction : 2 NaOH(s) +CaCI2(s) ⇌Ca(OH)2(s) +2NaCI(s)

Q: 3) Using as much chemical and reactions as you need Write in a reaction and show the mechanisms to…

A: The given reaction can be explained as:

Q: The standard molar entropy of silver chloride (AgCl) is 96.2 J/(mol x K). What is the entropy of…

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Q: The pressure of 5.0 L of gas increases from 1.50 atm to 1240 mm Hg. What is the final volume of the…

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Q: Which position (labelled a-e) is the most stable position for a radical? e d C a

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Q: A 0.8970 g sample of a mixture of NaCl and KC1 is dissolved in water, and the solution is then…

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Q: Consider these compounds: A. CaCrO4 B. AgCl C. Cr(OH)3 D. Al(OH)3 Complete the following statements…

A: l

Q: Find the volume of HCl gas at STP required to prepare 3.30 L of a 0.129 m HCl solution (assume water…

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Q: H3O*, KMnO4 cold dilute neutral KMnO4 1. 03 2. Zn, H3O+

A: We have to give the products of the given reactions of alkene. Introduction: Oxidative cleavage of…

Q: A 24.54 mL solution containing 1.818 g Mg(NO3)₂ is mixed with a 26.20 mL solution containing 1.176 g…

A: 1 mole of Mg(NO3)2 reacts with 2 moles of NaOH to give the final products 2 moles of Na(NO3)2, and 1…

Q: A voltaic cell utilizes the following reaction and operates at 298 K. (a) What is the emf of this…

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Q: Which of the following mechanistic steps is required in the formation of the following ether? OH…

A: This reaction can be explained as:

Q: The illustration to the left represents a mixture of xenon (brown) and fluorine (green) molecules.…

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