A. Write the Xnotation for each atomic depiction: (a) Z 18e 18p* 20nº (b) 25e 25p* 30n (c) 47e 47p* 62n

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A: When one substance is completely dissolved in another substance, then it is called completely…

Q: Which of the following is a covalent network solid? Ophosphorus brass barium hydroxide carbon…

A: Answer:- This question is answered by using the simple concept of covalent network solid which are…

Q: 12. Base forlopt + HBr

A: Introduction Alkene is an organic compound containing a carbon-carbon double bond. Alkenes are…

Q: When a solution is made from 47.8 g of an unknown nonelectrolyte dissolved in 151.4 g of solvent,…

A: Given: mass of non-electrolyte = 47.8 g mass of solvent = 151.4 g = 0.1514 Kg Elevation in boiling…

Q: small amount of HCl(aq) is added to this buffer system 1- NO3 + H₂0 OH¹ + HNO3 the pH rises only a…

A: A buffer system is a mixture of a weak acid and its conjugate base, or a weak base and its conjugate…

Q: could you help me work out these problem step by step

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Q: What information is needed to determine the molarity of a solution? What are the implications of the…

A: Molarity is a measure of the concentration of a solution, expressed as the number of moles of solute…

Q: Four liquids are described in the table below. Use the second column of the table to explain the…

A: Using elevation in boiling point and depression in freezing point equation, order of boiling point…

Q: Bromine has two stable isotopes: 79Br and 81Br with masses of 78.9183371 amu and 80.9162906 amu. If…

A: In this question we have to tell the the Mass of 79Br in 10 gram of Br which has 79.904 amu mass.

Q: Select all of the true statements about melting points. a. The melting point range of a pure…

A: The melting point of a substance is the temperature at which it changes from a solid to a liquid…

Q: A sample of hydrogen (H2) gas was collected over water at 60°C. If the total volume of gas…

A:

Q: What kind of intermolecular forces act between a hydrogen iodide molecule and a chloroacetylene…

A: Introduction Intermolecular forces are the forces of attraction or repulsion that act between…

Q: 10.0 mol of ammonia gas is injected into a 4.0 L container. At equilibrium 1.2 mol of nitrogen gas…

A: we have to calculate the moles of ammonia at equilibrium

Q: A reaction is both endergonic and exothermic. Which ONE of the following statements must be TRUE? A…

A: Endergonic reactions are reactions which need free energy to proceed. Exothermic reaction is…

Q: is reduced in the following reaction: Cr₂O72- + 6S2032 + 14H+ → 2Cr³+ + 3S406² +7H₂O O Cr₂O7²- O…

A: Introduction The oxidation number of an atom is a measure of the degree of oxidation of an atom in a…

Q: If I wanted to find a specific heat for this sub- stance, which segments of the heating curve might…

A: 3) Specific heat : It is the quantity of heat required to raise the temperature of one gram of a…

Q: 5. In the lowest energy conformation of the compound below, how many alkyl substituents are axial…

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Q: Identify the correct stereoisomer and the most stable conformation of the following compound.…

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Q: If a reaction is first order with a rate constant of 0.0450 s¹, how much time is required for 65% of…

A: The given data is as follows: The rate constant for first order reaction = 0.0450 s-1 Let the…

Q: In Part C of the experiment, you added a 6.0 NaOH solution to the aqueous solution of NaCl. Did the…

A: When NaCl is dissolved in water , it undergoes dissociation to form sodium and chloride ions.…

Q: - Roadmap Problem Identify compounds A-E. H₂CRO4 C D 1) Hg(OAc)2, H₂O 2) NaBH4 HgSO4 H₂SO4, H₂O H B…

A: Given are organic reactions.  Given product is aldehyde and made by ozonolysis reaction from A.…

Q: 1. Provide the condensed electron configuration for the ion of Ga which loses the fewest number of…

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Q: Please provide an equation for the following nuclear process: 231 Pa decays via ß-emission. 91

A: This question is related to nuclear chemistry. There are mainly three types of radioactive decay-…

Q: Problem Statement: Dry ice (solid carbon dioxide) has a density of 1.35 g/mL. If 25.0 mL of dry ice…

A: According to the question, The density of the CO2= 1.35 g/mLThe volume of the CO2 = 25.0 mL   Find-…

Q: Nuclei with the same number of neutrons but different mass numbers are called isotones. Write the…

A: Nuclei with the same number of neutrons but different mass numbers are called isotones. Mass number…

Q: Nitroglycerin, a very unstable compound (molecular structure shown below), is a liquid at room…

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Q: What is the pH at equivalence point, when 43. mL of HF (K₂ = 3.5 x 10-4) is titrated to completion…

A: for the solution, we have to calculate the pH at equivalence point

Q: When the aromatic ring attacks a strong electrophile, E*, via the mechanism shown which of the…

A: Introduction

Q: 5. Based on your knowledge of thermodynamics and kinetics, clearly provide the predicted outcome of…

A: This problem is based on general organic chemistry reaction mechanism and is a part of hydrocarbon .…

Q: The experimentally measured freezing point of a 1.20 m aqueous solution of MgCl2 is -6.03°C. The…

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Q: Under standard biochemical conditions, which ONE of the following relationships must be TRUE by…

A: Under the given set of conditions, a chemical reaction will be spontaneous if the change in the…

Q: How many L NaOH of a 0.075 M NaOH solution is needed to completely neutralize 100.0 mL of a 0.250 M…

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Q: Describe how you could use NMR to differentiate between the two molecules below by investigating the…

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Q: 13. CH O CH3 1) MgBr 2) H3O+

A:

Q: Below are sixty-three ionic reactions. According to the solubility rules, if a precipitate forms,…

A: Precipitation reactions takes place when the cations of one reactant and the anions of a second…

Q: A gas contracts to half its initial volume while releasing heat to the surroundings. What can be…

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Q: What is the molar mass (in g mol-1) of a gas which has a density of 0.48 g/L at a pressure of 0.98…

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Q: A possible resonant structure for the following molecule is: a. b. C. d. NH₂ + NH₂ +NH₂ + | : NH₂…

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Q: A liquid is exposed to infrared radiation with a wavelength of 2.43 × 10-4 cm. Assume that all the…

A: Answer : Given that, Wavelength =2.43 x 10-4 cm =2.43 x 10-6 m Energy= 30.03 J

Q: what are the attractive forces associated with salicylic acid solid and solid NaCl salt

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Q: Identify the relationship between the following two Newman projections. H3C_ H CH3 н CH3 H and H3C…

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Q: What is the name of the molecule shown in the below image?

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Q: GENERAL INSTRUCTIONS: Fill the table with the necessary information. Use your MOLECUL MOLECULAR…

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Q: 10 10 40 8 60 18 8 30 of Solute (g)

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Q: Question 9 Take Quiz Butadiene (C4H6) is consumed in a reaction by a 2nd order process. The initial…

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Q: Use the number of bonds and indicated formal charge on each atom to determine whether each of the…

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Q: 15. What reagents produce the product shown below? SO3H HNO3 H₂SO4 heat A H₂SO4 heat B Br₂ FeBr3 C…

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Q: Temperature, °C Estimating from the heating curve show, what is the approximate melting point of the…

A: When a substance undergo phase change (solid to liquid or liquid to gas ) the energy involved in a…

Q: A chemical reaction is run in which 260 Joules of heat are generated and 581 Joules of work are done…

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.