Choose the element from the list that best fits this description: "This element is in a family of elements that have characteristics of both metals and nonmetals. It is often used as a semi- conductor in electric circuitry, but it is not malleable." A. Sodium (Na) B. Calcium (Ca) Oc. Argon (Ar) D. Tellurium (Te)

Q: Sodium bicarbonate gives solutions that are slightly alkaline (approximately pH 8.3), and similar…

A: Here we have to determine the pH of 0.26M Sodium carbonate solution.

Q: 100.0 mL of a 0.750 M solution of KBr is diluted to 500.0 mL. What the new concentration of the…

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Q: 1. Show the steps necessary to make 4-cyclohexyl-1-octene using a Wittig reaction. Start with…

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Q: What is the freezing point depression (in °C) and freezing point (in K) of a solution containing…

A: This can be solved using depression in freezing point method of colligative property as shown below.

Q: (CaO=56.08g/mol; NH4Cl-53.492g/mol; NH3-17.034g/mol; H20-18.02g/mol; 110.98g/mol) Ammonia gas can be…

A: Given, Reaction : CaO(s) +2NH4CI(s) →2NH3(g) +H2O(g) +CaCI2(g)

Q: Provide the IUPAC name for the condensed structural formula shown here. H₂C CH₂ H3C CH CH₂ CH₂ CH₂…

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Q: A 0.50 M solution of an acid found in milk has a pH of 3.27. What is the percentage ionization of…

A: Weak acids are partially ionized. % of ionization is very low. for weak acids, Ka = [H+][A-][HA]

Q: Aluminum reacts with Cl₂ to form AICI3. If you have 0.712 mol of Al, what amount (mol) of Cl₂ is…

A: The unbalanced chemical equation is: Al + Cl2 → AlCl3  Amount of Al initially taken = 0.712 mol…

Q: what would be the major product of a Friedel-crafts alkylation reaction using the following alkyl…

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Q: Lexan is a plastic used to make compact discs, eyeglass lenses, and bullet proof glass. One of the…

A: Given equilibrium is  COCl2(g) ↔ CO(g) + Cl2(g)  Equilibrium constant , Kp = 6.8×10-9 Initial…

Q: In the Hall-Heroult process, a large electric current is passed through a solution of aluminum oxide…

A: Given,Current = 990 ATime = 68.0 secondsRequired,                  The mass of pure aluminum…

Q: A solution of 655 mL of 0.852 M CO(NH2)2 is mixed with a solution of 432 mL of 0.487 M CO(NH2)2. It…

A: We will first calculate the number of milimoles of CO(NH2)2 of each solution and add them to get…

Q: Show the step that leads to the hybrid orbital of the following molecule. Name the hybrid orbital…

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Q: If ferrocene was contaminated with some acetylferrocene after the column, what could you do to…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: determine the molar solubility of AgI in pure water. Ksp (AgI) = 8.51 x 10^-17

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Q: What is the mass of 3.80 moles of waterThe atomic mass of Hydrogen is 1.00 amu and that of Oxygen is…

A: First we need to calculate mass of 1 mole of water using the given atomic mass units.  Then we can…

Q: 4. A 2.50 L volume of hydrogen measured at -196 is warmed to 100. Calculate the volume of the gas at…

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Q: How many electrons are transferred in the following redox reaction? Zn + 2 AgNO3 2 Ag + Zn(NO3)2…

A: The reaction in which one species is oxidized and one species is reduced simultaneously, is called…

Q: which of the following is true

A: We have to choose the correct option. Since, a solution is acidic when [H3O+]>[OH-]

Q: HỎ OH 3. Show the step(s) necessary to transform the compound on the left into the acid on the…

A: The given product can be formed from given substrate by Grignards method.  Reaction of given alkyl…

Q: (Mg=24.31g/mol; O=16.00g/mol) The equation for the reaction of Mg and O₂ is Mg(s) + O2(g) → MgO(s).…

A: The given balanced chemical equation is  Mg (s) + O2 (g) →MgO (s) The mass of magnesium required…

Q: (Q104) A solution of FD & C Blue 1 dye is a vibrant blue color. With what color of light is the…

A: If a substance abosrbs light from a certain region of the spectrum then that substance will appear…

Q: wavenumbers in cm-¹) Alkene (C-H) Alkane (C-H) Carbonyl (C=O) Alcohol (O-H) = 1700 cm^-✪ 3050 cm^-…

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Q: At the end of the titration, the number of H+ ions in the acid solution must be the number of OH-…

A: Given that, Commercial vinegar  is titrated with 0.100 M NaOH solution. What is the dilution factor…

Q: the acid dissociation consants of sulfurous acod are Ka1 = 1.5 x 10^-5 and Ka2 = 1.0 x 10^-7 at 25°C…

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Q: The concentration of Na+ in seawater, 0.481 M, is much higher than in the cytosol, the fluid inside…

A: Seawater M1 = 0.481 M V1 = 1.50 mL   Cytosol M2 = 12 mM = 0.012 M V2 = ?

Q: The following two solutions are mixed 363 mL of 0.000591 M HNO2 and 271 mL of 0.000155 M HBr…

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Q: Write a chemical equation for Sr(OH)2(aq)Sr(OH)2(aq) showing how it is an acid or a base according…

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Q: Consider an electrochemical cell made up of Cul Cu²+ and Ag | Ag* half-cells. Part 1 of 2 Write the…

A: In an electrochemical cell, electrical energy is produced from the spontaneous cell reaction at the…

Q: A solution contains 1.10x10-2 M calcium acetate and 1.42×10-2 M barium nitrate. Solid potassium…

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Q: Consider the unimolecular reaction, CH3NC(g) = CH3NC(g), carried out in the presence of a helium…

A: Rate of the reaction must not contain any intermediate species. If contain then they can be…

Q: I have a solution that is composed of water and ethanol. The density of the solution is 0.964 g/mL…

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Q: Write a mechanism using sodium ethoxide in ethanol for the epimerization of cis-decalone to…

A: Cis-Decalone and trans-Decalone are two stereoisomers of Decalone which are represented as:

Q: а- Ь- с- НО d- CRO Е HO сно OH он оч -OM N.H₂O HO он OH OH UND, NACN, HCI э 2) Pd, BaSO4 На 1 H30*…

A: HNO3 is strong oxidizing agent it can oxidizes to aldehydes and primary alcohols to carboxylic acid.

Q: 4CuO(s) + CH₂(g) ⇒ CO₂(g) + 4Cu(s) + 2H₂O(g)_ Kc = 1.10 CH4, 0.67 M CO2 and 1.3 M H2O. Which of the…

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Q: The specific heat of aluminum is 0.900j/g*C, how many joules of energy are required to raise the…

A: Specific heat : The amount of heat is required to raise the temperature of one gram compound by one…

Q: (20. Find the [OH-] in a 2.5M malonic acid (H₂C3H₂O4) solution given that Kal=1.5x10³ and…

A: Since you have posted multiple questions, and as per Bartleby guidelines we are solving the first…

Q: Which of the following compounds acts only as an acid? Group of answer choices Fe2O3 Cr2O3 Zn(OH)2…

A: In this question, we have to choose the compounds acts only as an acid.

Q: 1 2 Compound Name Copper (UD) Carbonate Compound Formu нег

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Q: Draw the Fischer projection for the final product when trans-2-butene reacts with mCPBA/H2O.

A: We have to draw the Fischer projection for the final product when trans-2-butene reacts…

Q: 1. Account for the fact that for all transition metals, Ti to Cu, the +2 oxidation state is known…

A: First transition series (3d transition metals) are those which have an atomic number from 21 to 30.…

Q: Draw the two major products of this reaction. Use wedge and dash bonds to indicate stereochemistry…

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Q: HBrO HBrO3 HBrO4 HBrO2

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Q: 0.031L = ____cL

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Q: 177 < <6"H) 4 (1₂(g) → (C14 (1) + 4HC1 (g) Find AHran.

A: The balanced chemical equation is: CH4(g) + 4Cl2(g)  → CCl4(l) + 4HCl(g)

Q: Draw the product of the reaction shown below. Ignore inorganic byproducts. H₂O, heat - CO2 OH

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Q: STARTING AMOUNT . X 3.662 What volume in ADD FACTOR NOV x( ) 0.559 559 mol Nal L of a 0.724 M Nal…

A: Solution is made up of two components: solute and solvent. The component which is present in major…

Q: A solution contains 1.26×10-2 M sodium hydroxide and 7.80×10-3 M ammonium chromate. Solid calcium…

A: Answer: Sparingly soluble compounds are partially soluble in water and when their ionic product…

Q: How many milliliters of 0.0334 M KOH are needed to completely neutralize the HCI in 430 mL of a…

A: The neutralization reaction between NaOH and HCl is  KOH (aq) + HCl (aq) -------&gt; KCl (aq) +…

Q: What is the concentration of H* in 0.042 M HCIO4? [H+] = i What is the pH of the solution? pH = i M…

A: Given: Concentration of HClO4 acid = 0.042 M

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.