Most semiconductors are found in what area of the periodic table? A) the representative element B) column 18, or viiia C) period 3 D) The carbon family, column 14 or Iva

Q: The osmotic pressure exerted by a solution is equal to the molarity multiplied by the absolute…

A: Answer:When solution of different concentration are kept together separated by a semipermeable…

Q: Draw the Lewis structure of the hydronium ion, H3O+. Show all lone pairs and formal charges.

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Q: atom An atom of lithium. An atom of boron. An atom of neon. An atom of carbon. z experienced by a…

A: Rank the effective nuclear charge Z* experienced by a valence electron in each of these atoms:z*…

Q: ОН ОН || + CH3-C-0-C-CH3 Imidasool

A: The reaction of cyclohexane-1,2-diol with acetic anhydride in the presence of imidazole gives the…

Q: Predict the product for each reaction below: 1) t-BuOK 2) A B oiler f D Br E C Il Qull lon ? Qu F u

A: Reaction of ethyl aceto acetate with potassium tertiary butoxide followed by benzyl bromide.

Q: Decide whether each of the molecules in the table below is stable, in the exact form in which it is…

A: In the given question we have find out that which compound is stable and which is unstable at basic…

Q: 1. For a solution whose pH is 6.0, what is [H+]? If [H+] is 5 x 10-7 M, what is the pH? (answer =…

A: • For a solution,pH = 6.0[H+] = ?• For a solution, [H+] = 5 × 10-7 MpH = ?Note: The relationship…

Q: od D) live os 22 HgSO4, H₂O H₂SO49 O SMAN 100 19

A: The reaction of an alkyne with HgSO4, water, and sulphuric acid is an example of an oxymercuration…

Q: How are the differences within a series of salt dilutions and between the two salts associated with…

A: The ionic strength of a solution quantifies the presence of ions within the solution. When ionic…

Q: There are 4 steps required for the following transformations. Match the order of steps to the…

A: In the given reaction the alkane is converted into an alkene. The alkane has no functional group. An…

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first…

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Q: 76) Which of the following is the strongest acid? I. II. III. A) I B) II C) III D) IV E) V CI 0-1 C1…

A: Given Strongest acid among them = To be determined

Q: The rate law for the reaction of NO2(g) with CO(g) to produce NO(g) and CO2(g) is second order in…

A:

Q: 2. Circle the following solutions that is/are basic: a. NH,C1 b.KCN c.KNO d.NaNO, e.Na CO,

A: salts which are hydrolyzed in aqueous solution and produce OH- ion then these salts are basic.

Q: Balance the half reactions below in alkaline solution. Write the net ionic equation and determine…

A: Given,Ag2O(s) → Ag(s) E°cell = 0.342VZn(OH)2(s) → Zn(s) + 2OH-(aq) E°cell = -1.249V

Q: Compare two common types of antacids. A CVS Health brand antacid liquid contains 200 mg of Al(OH)3…

A: The effectiveness of an antacid in neutralizing stomach acid is determined by the amount of active…

Q: How many grams of Co(CH3COO)₂ are there in 197 grams of an aqueous solution that is 9.60 % by weight…

A: >mass/weight percent is defined as the mass of solute dissolved in 100 g of solution The formula…

Q: 10. A nuclear change involves a greater enthalpy change than does a chemical change. True / False…

A: A moving thing has more kinetic energy and the thing which is in rest has less kinetic energy.If the…

Q: The major compounds used in Fragrance are: a. Ethers. O b. Alcohols. O c. Carboxylic acid. O d.…

A: 1. Answer :---- The correct answer is :-b. Alcohols.Here, alcohols are the major compounds and it is…

Q: A major component of gasoline is octane (CH18). When octane is burned in air, it chemically reacts…

A: Octane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: What is the volume in L of 216.8 g of oxygen at 725 torr and 37° C

A: volume=V=?mass=m=216.8gtemperature=T=37 °C=310Kpressure=P=725 torrmolar mass of oxygen…

Q: Determine the number of moles of magnesium needed to react with 3 moles of hydrochloric acid in the…

A: A balanced reaction is defined as a reaction in which we have the same number of atoms of elements…

Q: If 30.6 grams of bromine and 13.6 grams of chlorine combine to form bromine monochloride, how many…

A:

Q: Be sure to answer all parts. Calculate the density of a solid substance if a cube measuring 2.90 cm…

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Q: 1) Draw the cyclic mechanism for the following reaction benzylic C-N bond NR₂ H₂, Pd/C RNH₂ toluene

A: To draw the cyclic mechanism for the following reaction:Please note that the by-product will be R2NH…

Q: Van der Waals equation of state is given by P+- n of the following represents: i) ii) iv) P V nb P4…

A: Given: Vander Waal equation of stateTo determine:Representation of each term.i) Pii) Viii) nbiv)v)

Q: 12. a) Write the full electron configuration for the magnesium atom. b) Label and provide a point…

A: The given question is about electronic configuration of magnesium.We have to write correct and full…

Q: 4. Calculate the pH for 0.01M HNO, solution

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Q: Draw the structure of the expected major organic product for each of the following five (5)…

A: To provide the major organic product for each of the given reactions and specify stereochemistry, if…

Q: Select the major 1,4-addition product of the following reaction that is derived from most stable…

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Q: Which of the following would be classified as lecithins? (Select all that apply.) 0…

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Q: N- am II. NH₂ ia pyridine III. 1. LIAIH4 2. H₂O IV. NH₂ V.

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

Q: Suppose that, from measurements in a microscope, you determine that a certain layer of graphene…

A: The conversion of quantity from one unit system to another unit system is known as unit conversion.…

Q: It is often necessary to do calculations using scientific notation when working chemistry problems.…

A: Given that Rewrite  as Now,  is very large in comparison to 1.00. So, the addition of 1.00 brings…

Q: Choose the correct names of the atoms or molecules. Check all that apply. Osodium trichloride…

A: Choose the correct names of the atoms or molecules.sodium…

Q: The following is a skeleton of a molecular anion having the overall formula C7H6NO–. The H atoms are…

A: The structures that give complete information about the arrangement of atoms around the central atom…

Q: 100 abundance 80 60 40 20 55 M 84 trans-hex-2-ene 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140…

A: Molecular ion mass in mass spectra is heaviest ion and its have  ratio is highest.M+ ion is the…

Q: 2- Draw the Lewis structure for CO² including any valid resonance structures. Which of the following…

A: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a simplified…

Q: What two gas variables are kept constant in a Boyle’s law experiment?

A: Boyle's lawAccording to the Boyle's law as the pressure (P) increases the volume (V) of a gas…

Q: Calculate the pH of a 0.5000M NaCN solution. K. of HCN=4.9x10-10

A:

Q: Which of the following covalent compounds has a linear VSEPR structure? Choose ALL that apply. a.…

A: These problems are based on Chemical Bonding.According to VSEPR theory , Hybridization number = 1/2(…

Q: The number of particles that would usually "collide"; in an elementary step are 1-2 3-4 5-6…

A: In a chemical reaction, an elementary step (also known as an elementary reaction or a reaction…

Q: Show the structures for the major/significant organic product(s) expected for the following eleven…

A: To determine the major product for the given reactions:

Q: Provide the IUPAC name for this (3-methylbutyl)-substituted alkane: ☆ Provide the IUPAC name for…

A: • Identify the longest continuous carbon chain.• Identify the substituent group attached to the…

Q: What is the pH of 0.15M NH, solution? K₁ =1.8×10³

A: Concentration of NH3 solution (C) = 0.15 MKb for NH3 = 1.8 × 10-5pH of a solution = ?Note: Ammonia…

Q: Draw the major organic substitution product for the reaction show CI CH3CH₂OH isopropyl alcohol…

A: Given a reactionreaction mechanism and product = need to be determined

Q: (1.678x10^3m^2)/(1.6267x10^2m) ...I just need help with the sig figs and units

A: (1.678 X 103 m2 ) / (1.6267 X 102 m)Calculate the above problem with correct significant and unit.

Q: vad ebrind sigia medi ja 1) BH3 2) H₂O2, H₂O, NaOH

A: The reaction of alkenes with BH3 in the presence of peroxide, water, and sodium hydroxide produces…

Q: Describe the nephelauxetic effect. How does this effect explain the contribution of covalent bonding…

A: Given:Nephelauxetic effect A metal-ligand bond, also known as a coordination bond, is a type of…

Q: ▾ Standard deviation hint The average or mean, is defined by: where, each is the value of the data…

A: The average concentration of HCl solution is calculated using the following formula: