What is the resonance form that describes the distribution of electrons in SeO2 ?

Q: object quantum or classical? O classical A raindrop with a mass of 2.0 mg, 5.7 mm wide, moving, at 8...

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Q: Experiment 3 Repeat the experiment above (Question 2) using a 10 mL pipette to dispense the 10 mL of...

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Q: Answer: 7. The level of ethyl acetate is determined in colchicines by headspace gas chromatography. ...

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Q: The acid ionization constant for Al(H2O)63+(aq) is 7.9×10-6. Calculate the pH of a 0.0348 M solution...

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Q: An unknown volume of water at 18.2°C is added to 20.3 mL of water at 35.0°C. If the final temperatur...

A: Given :-  Volume of water at 35.0°C = 20.3 mL  Final temperature after mixing  = 23.5°C  To calculat...

Q: ieht 15.8 - Enhanced - with Feedback Part A MISSED THIS? Watch KCV 15.8, IWE 15.12; Read Section 15....

A: Equilibrium constant = [product]÷[reactant]

Q: Measurements show that unknown compound X has the following composition: element mass % calcium 38.7...

A: Write the empirical formula of X....

Q: show the arrow-pushing mechanism for the reaction below O-H H30*

A: Let us do step by step mechanism,

Q: Calculate the weight of solid NaOH needed for the preparation of 500ml of 0.25N NaOH solution

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Q: A balloon is initially filled with 4.00 moles of hydrogen, resulting in a volume of 21 L. Then, 2.00...

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Q: Consider the following data on some weak acids and weak bases: acid base K. K name formula name form...

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Q: Equilibrium Constant and Reaction Quotient 9 of 22 I Review | Constants | Periodic Table Part A At e...

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Q: The following alkyl azide (R-N3) can be synthesized in two synthetic steps. Propose a two step synth...

A: Both the steps occurs via Sn2 mechanism.  In 1st reaction, OH is not a good leaving group. In presen...

Q: Why do you think that the surrounding temperature of ice cubes is cold and has condensation? What pr...

A: The surrounding temperature of ice cubes is cold.

Q: Indicate the number of peaks that will show up in the 13C NMR spectrum of the given compound.

A: 13 CMR spectroscopy give information about carbon skeleton in organic compounds

Q: Write the correct ionic formula for the compound formed between Al3+ and HCO3–. A. Al(HCO3)3 B. AlH...

A: The Al3+ is a cation of aluminum atom which looses three electrons to form an ionic compound and HCO...

Q: According to the following balanced reaction, how many moles of CaO are required to exactly react wi...

A:

Q: What is the product formed when 1-ethynylcyclohexane is reacted using mercury (II) acid catalyzed hy...

A: Alkyne gives a hydration reaction in the presence of sulfuric acid and a mercuric acid catalyst to f...

Q: lithium acetate iron (II) phosphate _ titanium (II) selenide calcium bromide gallium chloride sodium...

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Q: Determine the pH at the equivalence (stoichiometric) point in the titration of 38.83 mL of 0.262 M (...

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Q: Be sure to answer all parts. Given the reaction represented by the balanced equation CH4(g) + 3Cl,(g...

A: Given the reaction represented by the balanced equation CH4(g) + 3Cl₂(g) → 3HCl(g) + CHCl3(g) Molar ...

Q: The pH of a solution made from a 0.75 M acetic acid solution and a 0.54 M sodium acetate solution is...

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Q: On faucets and plumbing fixtures in areas with hard water, limescale accumulates over time. Limescal...

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Q: %24 When 21.6 mL of 0.500 M H,SO, is added to 21.6 mL of 1.00M KOH in a coffee-cup calorimeter at 23...

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Q: In the year 1980, countries near the United States experienced an increase in acid precipi- tation. ...

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Q: What are the ideal van't Hoff factors for the following compounds: * Ba(ОН)z, CoН12О6, КЗРО4, HNO3 ?...

A: The Vant Hoff factor of the above compounds can be calculated as follows

Q: What will be the equilibrium concentration of H2O?

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Q: Which scenarios are the most likely causes of the formation of secondary pollutant ground-level, or ...

A: Tropospheric ozone is called bad ozone, Select the correct statement related to its formation.....

Q: 4. Lead (I) iodide can be produced from the reaction of lead () nitrate and potassium iodide. What m...

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Q: A chemist prepares a solution of iron(II) chloride (FeCl,) by measuring out 0.25 g of FeCl, into a 2...

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Q: Calculate the molar solubility for calcium phosphate Ca3 (PO4)2. (Ksp is 2.0710-33)

A: The solubility product of a compound is the multiplication of the concentration of its constituent i...

Q: Although we use pre-cast gels in this lab it is common practice to make your own polyacrylamide gels...

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please re...

Q: High-purity benzoic acid (CH;COOH; AHxn for combustion =-3227 kJ/mol) is used as a standard for cali...

A: The heat of combustion of benzoic acid is = -3227 kJ/mol The mass of benzoic acid is = 1.221 g The h...

Q: • Part C How many milliliters of 14 M HCl must be added to 0.500 L of the original solution to chang...

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Q: Determine whether aqueous solutions of the following salts are acidic, basic or neutral: a.) AI(N...

A: Solution - According to the question - Given - (a) Al(NO3)3 - It is is salt of weak base (Al(OH)3) a...

Q: Ka

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Q: Nitryl fluoride can be made by treating nitrogen dioxide with fluorine according to the reaction: 2 ...

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Q: 3. The spin-decoupled 1°C NMR spectrum of an unknown compound contains a peak near 8 210 ppm, and a ...

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Q: ne chemical reaction. bund your answer to 3 significant digits.

A: Mass = mole × molar mass

Q: Indicate the correct answer Three electron groups and no lone-pairs will form a triangonal pyramidal...

A: We can determine the molecular geometry of a molecule solely by the number of bonds and lone pairs a...

Q: pH

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Q: Fill in the following table with either the chemicals formed or no reaction upon mixing each pair of...

A: We have to fill the table. 

Q: Assumed water volume = 10.0 ml a.) calculated mass of water b...

A: The mass of a compound is related to its density and volume as follows: Density=MassVolume          ...

Q: Ki

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Q: 1.2-/1,4-product & 1,3-product formations CF3 heat OMe heat heat CN

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Q: How much mass is required to make 7g of NH; saturated at 145g H,O at 10°C?

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Q: Calculate the KHC8H4O4 titer of 0.125 M KOH. Give the chemical reactions involved.

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Q: Flask contains 0.00325 mol methane (CH4) gas at 22.5•C. The pressure in the flask is 255.2 mmHg. Wha...

A: Ideal gas equation: The temperature, pressure, volume, and mole of the gas are related by the ideal ...

Q: 63.0 mL of Ca(OH)2 solution was titrated with 21.5 mL of 0.467 MHNO3. Determine the molarity of the ...

A: Here given--- Volume of HNO3 (V1) = 21.5 mL Strength of HNO3 (S1) = 0.467 M Volume of Ca(OH)2 (V2) =...

Q: Methanol, CH3OH, formerly known as wood alcohol, is manufactured commercially by the following react...

A:

Quantum Mechanical Treatment of the Valence Bond Theory

Quantum mechanical treatment of valence bond theory refers to the relationship established between the quantum mechanical theory and the valence bond theory to describe the chemical bonding in a particular molecule.