What does "X" represent in the following symbol? 28 14 X O silicon sulfur O nickel O nitrogen

Q: 1. Something is unusual about the 4s and 3d orbitals. What do you notice about the order in which…

A: According to the company guidelines, we have to answer only the first three subparts. So, please…

Q: Support it with the correct solution 1. What mass of aluminum oxide must be electrolyzed with…

A: In Hall's process for the industrial production of Al(s), the below half-reactions takes place in…

Q: You have the following data points which belong to a function of the form y = ae, where b can be…

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Q: If a system releases 80 kJ of heat while having 50 kJ of work done on it, the AEuniverse is positive…

A: According to 1st Law of Thermodynamics,            dE= q+ও The heat gain by the system (q)= -80kj,…

Q: 1. The rate constants for the formation of Co(NH 3 )5 X]^ 2+ from [Co(NH 3 )5 H 2 O]^ 3+ for X=Cl^…

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Q: Which of the two molecules show below would have the higher boiling point? CI H X C H H A H B FC CI

A: Which one having higher boiling point?

Q: Barium sulfate is often given for patients to ingest as an image enhancer for gastrointestinal…

A: Barium sulfate: The formula for Barium sulfate is BaSO4 and it's far insoluble in water. It is in…

Q: 20.  Consider the reaction shown below at equilibrium with solid BaSO4 present.  BaSO4(s)…

A: According to Le Chatelier's principle, if the equilibrium is disturbed by any factor then the…

Q: 3.Complete the following Reaction. Include the IUPAC name of the product. [ OH + H₂C-CH₂-CH₂-NH₂ a.…

A: This question is related to condensation reaction in which two species combined with the removal of…

Q: ) Write an equation for the combustion of 1 mol of pentane gas, C5H12(g), to form carbon dioxide gas…

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Q: Name the compound (IUPAC NAME)

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Q: 20. Calculate the percent composition of Na in borax, Na2B2O7, used in commercial laundry processes.…

A: Given that -  Borax, Na2B2O7, used in commercial laundry processes    The atomic masses of different…

Q: The structure below is an intermediate in a reaction. Draw all reasonable resonance structures for…

A: We have to draw all the reasonable resonance structure of the given intermediate.

Q: 16. The decomposition of hydrogen bromide is 2 HBr(g) → H2(g) + Br2(g) The reaction has…

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Q: Determine the concentration of all solute species present in a 0.50 solution of nitrous acid (HNO2)…

A: Given :  Concentration of HNO2 = 0.50 mol/L  Ka of acid = 7.1 x 10-4

Q: Calculate the freezing point (to the nearest 0.1° C) for a solution containing 17.3 g of SrBr and…

A: Given data : Mass of SrBr = 17.3 g Mass of lactose = 30.8 g Mass of water = 200 g = 0.200 kg Kf =…

Q: Given the reaction mechanism shown below Step 1 Ce4+ + Mn2+ → Ce³+ + Mn³+ Step 2 Ce4+ + Mn³+ → Ce³+…

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Q: (13) A B C OD What is not an elementary step in the mechanism for the following reaction? H₂O НО. X…

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Q: Consider the molecule shown below. One part of the molecule is missing (shown as a question mark).…

A: The valancy of the oxygen atom is two. Hence oxygen atom forms two covalent bonds.

Q: Calculate the percent composition of H in NH4NO3, a compound used as a fertilizer. A. 27.8 B. 8.07…

A: Recall, Compound= NH4NO3 %H = ?

Q: (3.10: Similar to Example 3.21) Upon combustion of 0.250-g sample of a compound containing carbon,…

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Q: Q5. For CO2, the bending vibrations are of symmetry type, (a) A1g, J. Log by The XO) 2 (d) Azu

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Q: for trans-1.2-dichlorocyo 3. The structure below is Formeterol, a long-acting b-adrenergic agonist…

A: Redraw the structure and label all the functional groups--

Q: vaporizes at 100°C or 373.15K, with the enthalpy of steam being AH (40,657 kJ/mol). vape The Gibbs…

A: Given : Temperature =373.15 K Enthalpy of vaporization = 40.657 KJ/mol

Q: Consider the reaction mechanism shown below Step 1. H₂O₂ + H₂O + 10- slow Step 2. 10 + H₂Qz H₂O + 0₂…

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Q: What are the products of the following reactions?

A: products of the following reactions

Q: Write the half reaction in the anode, if the O2- is oxidize to form oxygen gas.*       O2- ---->…

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Q: A chemist adds 35.0 mL of a 7.43 x 10μM zinc oxalate (ZnC₂04) solution to a reaction flask.…

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Q: TRUE OR FALSE In general, any metal that does not react readily with water to produce hydrogen can…

A: As we know electrolysis is used to drive some thermodynamically non spontaneous reactions by using…

Q: (28) An archaeologist claims that a bone in her collection is from a saber-toothed tiger that is…

A: Given that, for a carbon-14 The initial decay rate is -dNdt0 = 15.3 disintegrations per minute per…

Q: According to the VSEPR theory, the groups around a carbonyl carbon are located Select one or more:…

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Q: Identify the selected functional groups. Type the name of the functional groups In the boxes HN- CH3…

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Q: Suggest reagents suitable for the following multistep transformations: a) OH * ON b) Br Br =y² Br…

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Q: 2. Methyhydrazine(N₂H3CH3) is a common liquid propellant in rocket fuels. Calculate the AHO for the…

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Q: Chemistry 2-propanol, 2-methylbutane and paranoiac acid are all liquid at room temperature and…

A: Like dissolves in like means the solvent and solute if they have same intermolecular forces then…

Q: A 124.5 g sample of an unknown metal absorbs 1276.25 J of heat, upon which the temperature of the…

A: Given: The mass of the metal sample = 124.5 g The amount of heat absorbed by the metal = 1276.25 J…

Q: Write the oxidation and reduction half reactions and the overall reaction for a galvanic cell that…

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Q: A Vitamin C packet is added to a glass of water containing 310.0 mL of solution. The Vitamin C…

A: Given  Mass of solute (vitamin C) = 1000.0 mg  = 1.0 g ( 1mg =10-3 g) Volume of solution =310.0 mL…

Q: Redox reactions can be seen all over us. Give an example of daily activities showing REDOX reaction.

A: There are many phenomenon where REDOX reaction takes place , such as , Rusting of iron , combustion…

Q: Desribe the reaction product. (q) CI ОН ОН (r) (s) 1 Н ОН ОН

A: The discription of each reaction is given below,

Q: Which of the two molecules show below would have the higher boiling point? CI H X X H H H A B

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Q: (4) (5) The emission of a positron from the nucleus converts a proton into a/an (A) Neutron (B)…

A: During nuclear reaction the sum of mass number and sum of atomic number is same on reactant and…

Q: 1. When 18.2g of sugar, a nonelectrolyte, is dissolved in exactly 600.0g of water, the solution has…

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Q: Based on the solubility rules, which of these processes will occur if solutions of CuSO4(aq) and…

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Q: Consider the reaction: AB(g) → B(g) +A(g) with the rate law Rate = K[AB]2 and the rate constant k =…

A: Which one of the following is correct

Q: 2. What kind of results do you expect to see when the following compounds are mixed together with…

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Q: Consider the following equilibrium: PCl3(g) + Cl2(g) ⇄ PCl5(g) When 0.80 moles of PCl3 and 0.80…

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Q: Consider the reaction: AB(g) → B(g) +A(g) with the rate law Rate = K[AB]2 and the rate constant k =…

A: Given-> k = 5.0 × 10-2 M-1.s-1 [AB] = 2.0 M

Q: 4. Given the half-reactions below, provide the answers to the following: E°= 0.92 V 2Hg²+ (aq) + 2e-…

A: At anode oxidation takes place while at cathode reduction takes place.

Q: How many electrons have the quantum number n=3 in the ground state ion Mn²+? 02 05 06 O 12 13 0.10

A: Which one of the following is correct answer

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.