Write the condensed (noble-gas) electron configuration of Si.

Q: The internal energy of a system is always increased by O adding heat to the system having the system…

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Q: In an oxidation-reduction reaction, reduction is defined as the Loss of electrons O a. O b. Loss of…

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Q: Joseph Priestley prepared oxygen by heating mercury(II) oxide. The compound HgO is stable at room…

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Q: 3.Which has higher ionization energy, potassium cation or chlorine anion? Why?

A: Ionisation energy is the minimum energy required to remove the most loosely bound electron.

Q: hen 2.00 grams of KMnO4 (MW = 158.0 g/mol) is dissolved into 100.0 mL of solution, what normality…

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Q: Find the absolute entropy of Nitrogen gas at 100 K. Assume that the heat capacity of nitrogen gas in…

A: Answer: Entropy of system is the measure of its disorderliness or randomness. In more possible…

Q: You are asked to determine the alkali present and the percentage of each in a component of a sample…

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Q: Draw the two chair conformations of the following compound A, and indicate which is more stable.…

A: For six membered ring chair form is drawn for the stability of the compound. In chair form…

Q: 6 points The complex [Co(NH3)6] absorbs light at a wavelength of 465 nm. What is the ligand field…

A: Solution:                               Given ,…

Q: Identify the oxidation numbers to all the elements in each of the compound or ions ( PbO2 Q a.…

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Q: of H,O polar or non-polar? A) Linear M B) Linear M. polar 1-0-H C) Bent Mol D) Bent Mol polar E)…

A: Form the lewis structure,  H2O has two lone pairs and 2 singma bond. So Hybridization is sp3.

Q: Sequence the steps required for a sodium chloride crystal to dissolve in water

A: Sodium chloride (NaCl) dissolves when water molecules constantly attack the NaCl crystal, pulling…

Q: For the previous item, provide the IUPAC name of the product after step 2: CI Step 1 Step 2 Step 3 ?…

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Q: You are asked to determine the alkali present and the percentage of each in a component of a sample…

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Q: sign of the entropy change

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Q: To determine the Ksp of barium oxalate at 12°C, a 100.0 mL saturated solution was prepared by adding…

A: Here 100 ml of saturated solution of BaSO4 is prepared and 10 ml aliquot of solution required 10.7…

Q: At what temperature in Kelvin will a reaction have AG = 0, when AH=-24.2 kJ/mol and AS = -55.5…

A: ∆G = 0  ; ∆H = -24.2 KJ/mol  ∆S = -55.5 J/k.mol  Temperature in kelvin = ?

Q: Below is given the active site of a protease including its substrate. SUBSTRATE R1-NH `NH Ph `NH он…

A: Solution:  (ii) The given enzyme is serine protien.

Q: The conventional equilibrium constant expression (Kc) for the system as described by the equation…

A: Which one of the following is correct

Q: What is the normality of the new. solution if a 200.0 mL of a 0.40 M HCl solution is diluted with…

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Q: Question 13 6 point What is the activity in atoms/sec of a 3 mg sample of "Rb (t12 = 2.8 minutes)?

A: Step by step solution are below

Q: In the reaction SO2 + 2 H2S → 3 S + 2 H2O a. sulfur is oxidized and hydrogen is reduced b. sulfur is…

A: In this question we have to tell which species reduced and which species is oxidized.

Q: nich one of the changes below will increase the poten 2+ 2* (aq, 1.0 M), Sn 4*(aq, 1.0 M) || Cu…

A: Ine electromechanical cell,  Cell potential is increased by increasing concentration of reactant.

Q: -(CH) One or more of the monomers below are needed to make the polymer Choose which one(s). C-(CH2)4…

A: Detail description is given below

Q: Explain why NOT ALL hydrolysis of esters produce a sour smell

A: Esters are neutral compounds, unlike acids from which they are formed. Hydrolysis of an ester can be…

Q: For which of the following substances does AH°F = 0? O Co2(g) O H20(g) O Na(s) O CH4 (g)

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Q: Identify the oxidation numbers to all the elements in each of the compound or ions Mg N2 O a Mg3=+2;…

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Q: Draw the reaction mechanism for the reaction between an aldehyde and water under acidic conditions.…

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Q: 20. A water sample is 0.00055 M in CaCO3 (MW= 100.09 g/mol). The concentration in parts per million…

A: Concentration in terms of parts per million is defined as (mass of solute)/( mass of solutions )*106…

Q: Given the reaction: Cl2 +2 KI → I2 +2 KCI, which of the following statements is/arefalse? i)…

A: Oxidation states. 1. Cl2 = 0  2. KI = K (+1) , l(-1) 3. I2 = 0  4. KCl = K(+1) + Cl(-1)  The…

Q: Identify the oxidation numbers to all the elements in each of the compound or ions KMN04 O a. K=+1;…

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Q: Which reaction results to a decrease in the entropy of the system? O 4 NH3 (g) + 5 02 (2) → 4 NO (g)…

A: The entropy is the measure of degree of randomness in a molecule.

Q: 8. For the reaction 2 Ag) + B) =2 C Kea = = 0.18 at 200°C %3D calculate (a) K for the reaction 2 C…

A: Answer: Stoichiometry of the reaction affects the values of equilibrium constant. In the given…

Q: 20. At 0 °C the ion product constant of water, K, is 1.2 x10-15. The pH of pure water at this…

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Q: 2262 Sp 2022 Quiz 6 Due May 6th at beginning of class version 1 (A-B) Last Name First Name List #…

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Q: If Al is above Co in the activity series of metals which of the following will occur if a strip of…

A: A more reactive metal displaces a less reactive metal from its aqueous salt solution.The reaction of…

Q: 5. For the reaction 2 NO2) = N;O(«) (a) At a given temperature, 1 mole of NO, is placed in a 10-1…

A: GIVEN: Number of mole NO2 = 1 mole number of mole N2O4 = 0.2 mole volume =10 L  find Keq = ?

Q: give a brief account of novel drug delivery system.

A: A Novel Drug Delivery System (NDDS) can be defined as a new approach that combines innovative…

Q: Provide reagents and conditions to produce the products indicated. EtO hint: direct alkylation by…

A: Detail mechanistic pathway is given below to carry out the following conversion with appropriate…

Q: Он о OH O Он о Он о H. ÓH II IV V Which of the following molecules is not a possible product when a…

A: Aldol condensation: The alpha hydrogen of carbonyl compounds is acidic in nature and it is removed…

Q: The value of AH° for the reaction below is - 790 kJ. The enthalpy change accompanying the reaction…

A: Given: ∆Ho=-790 kJ Mass of S = 0.95 g Known: Molar mass of S = 32 g/mol

Q: In any oxidation-reduction reaction, the total number of electrons gained is a. equal to the total…

A: Oxidation and reduction reaction takes place side by side. One of the reactants gets oxidized…

Q: 17-20. Uranium-238 decays very slowly, with a half-life of 4.47 billion years. What percentage of a…

A: Answer: 12.5%

Q: At constant pressure, the combustion of 25.0 g of C2H6(g) releases 1300 kJ of heat. What is AH for…

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Q: 2. Arrange the following atoms in an increasing order on atomic radii, ionization energy, electron…

A: Solutions                                   Given that  2a) Atomic radii Li B Cs Al Pt

Q: 12(g) 8. For the reaction 2 Ag) + B) Keg = 0.18 at 200°C %3D calculate (a) K for the reaction 2 C…

A: Given reaction is :  2A (g) + B (g) <----------> 2C (g) , Keq = 0.18  Calculate  (a). Keq for…

Q: = 4 Which of the electron transitions would release the most energy? A) I B) II C) III

A: When electron makes a transition between energy levels then it emit and absorb energy.  When…

Q: C. Predict the Direction of a Reaction Predict the direction toward which the reaction will proceed…

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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.