Н 0 H

Q: H H-C-H 11 H #1C1M 8/ Q: Label each lettered element with the correct molecular geometry.. Element…

A: When sp3 hybridized N have lone pair and take part in resonance then N atom is sp2 hybridized and…

Q: Which of these is not a mechanism of enzymatic activity? Selected answer will be automatically…

A: The correct answer is b. Swapping amino acids within a substrate is not a mechanism of enzymatic…

Q: 3.85 x 10^-6 mol lead (II) ions to number of ions

A: 1 mole of any substance contains 6.022 × 1023 molecules.  This number is called as Avogadro's…

Q: 5. A tiny piece of paper (produced from formerly living plant matter) taken from the Dead Sea…

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Q: Use standard reduction potentials to calculate the standard free energy change in kJ for the…

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Q: Classify each of the following statements as True or False. Light source B has energy as is seen by…

A: Photoelectric effect: When a photon falls on the surface of a metal, a part of the energy of photon…

Q: Hydrogen gas reacts with chlorine gas to produce hydrogen chlorine gas The hydrogen chloride gas can…

A: Given, The mole of the water = 12 mole The balanced chemical reaction for the decomposition of the…

Q: A steel rod having a cross-sectional area of 300 mm² and a length of 150 m is suspended vertically…

A: To calculate the total elongation of a rod under a tensile load, we can use the formula:   ΔL = PL /…

Q: shown below. Ignore any inorganic byproducts. CH3CO₂H Br

A: Structure of Product of the organic reaction.

Q: How much energy is needed to convert 59.5 grams of ice at 0.00 °C to water at 60.9 °CT specific heat…

A: Here, we have to find the amount of heat that is needed to convert 59.5 g of ice at 0.00 oC to water…

Q: Question 15 In an experiment, the wavelength of light emitted when a hydrogen atom transitions from…

A: Given: n = 3 to n = 2 λ = 645 nm  To find: Value of Rydberg's const

Q: QUESTION 7 By first law of thermodynamics, O q = AE - W q = AE+W q = -AE-W O q = -AE+W QUESTI NO

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Q: 4. Activation energy is a. The amount of energy of oxidation b. The amount of energy required to…

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Q: If you mix 20.0 ml. of a 3.00 M sugar solution with 30.0 mL of a 5.63 M sugar solution, you will end…

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Q: Use standard reduction potentials to calculate the standard free energy change in kJ for the…

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Q: A solution has [OH-]-2,5 x10-7 M. The [H] in this solution is 1.0 M M M OPM none of these

A: Given:  [OH-] = 2.5×10-7  Formula:  Kw = [H+] [OH-]  where Kw = 1.0×10-14  So, [H+] [OH-] =…

Q: Predict the major product for the following reaction. Enter the InChl code for the major product. H…

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Q: 120 1. How many electrons, protons, and neutrons are in ['50 Sn]* ₂ A) 54 electrons, 50 protons, and…

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Q: When cobalt (II) chloride reacts with sodium hydroxide, the resulting products are cobalt (II)…

A: For the calculation of the mass of the reactant we use the following steps: Balance the given…

Q: A mixture of 2g He, 7g N2, 16g O2, and 10g Ar occupies a container. The total internal pressure is…

A: Given: The mass of He = 2 g The mass of N2 = 7 g The mass of O2 = 16 g The mass of Ar = 10 g The…

Q: At a constant temperature, a sample of a gas in a balloon that originally had a volume of 8.0 L. and…

A: According to Boyle's law, the product of pressure and volume is constant at constant temperature.…

Q: According to Le Chatelier’s Principle, does the following reaction shift towards reactants, towards…

A: Answer: This question is based on Le-chatalier's principle which suggests that on changing any…

Q: ____ are added to protect condensate lines. a) amines b) phosphates c) sodium sulfate d) zeolites

A: Please find your solution below : Condensate lines are the lines mainly made of polyvinyl chloride…

Q: The 121 howitzer refers to the bore size of the weapon in mm. Thus, the "121" has a 121 mm bore…

A: Given: Bore size = 121 mm  and bore size in caliber = bore size in inches *100  since 1 in = 2.54 cm…

Q: A sample of a gas at 3.67 atm pressure and 14°C has a volume of 75.0 mL. The pressure is lowered to…

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Q: Use standard reduction potentials to calculate the equilibrium constant for the reaction: Co²+ (aq)…

A: This is a simple problem of electrochemical cell where we have to calculate the standard reduction…

Q: 6. Draw the correct structure of the amino acid Glutamine (pl=5.7) at Glutamine: R=CH₂-CH₂- 0 -NH₂

A: We know the structure below pI is Catholic or Quarternery ammonium salt (R3NH+) and above pI anionic…

Q: K Given: Br2 (1) +2e 12 (s) + 2e O -1.63 V O -0.55 V O 0.55 V What is the standard cell potential…

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Q: Consider the equilibrium shown below: CaCO3(s) C»0)+CO1 What would happen to the system if the total…

A: Given : equilibrium reaction Tip : addition of inert gas does not effect in equilibrium position

Q: A reaction is observed to have a rate constant of 35 min ¹. Calculate the corresponding half-life…

A: For first order reaction, the unit of rate constant is (time) -1 And the half life calculation can…

Q: A chemist titrates 120.0 mL of a 0.2898M carbonic acid (H₂CO,) solution with 0.8540M KOH solution at…

A: pH value at equivalence point can be calculated by considering the equilibrium reaction of HCO3-

Q: 26. A mole of perfect gas at 27°C is expanded isothermally from an initial pressure of 3.00 atm to a…

A: Given that, for an isothermal process of an ideal gas The number of moles is n = 1 mol, The…

Q: Which of the following occurs during radical halogenation reaction? Both the halogen radicals and…

A: Step by step mechanism given,    During radical halogenation reaction light is required.

Q: The radioactive nuclide has a half-life of 17.5 hours. What mass of the nuclide remains from a…

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Q: 28. The volume of four moles of an ideal monatomic gas at 600 °K is halved while the pressure is…

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Q: What is the major organic product obtained in the following reaction? NH NH3 NaBH3CN II NH₂ III HỌ…

A: In a reductive amination reaction, a carbonyl compound reacts with ammonia or amine to form an imine…

Q: Hydrogen gas reacts with chlorine gas to produce hydrogen chlorine gas The hydrogen chloride gas can…

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Q: 6) B) A 150.0 g sample of a metal at 80.0 °C is placed in 150 g of water at 20.0 °C. The temperature…

A: Given , mass of metal sample, mm = 150.0 g Initial temperature of metal , tim=80°C mass of water…

Q: A. The reaction shown below affords only one product upon treatment with HBr. Explain these…

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Q: 5. What functional group is found in the bond formed when amino acids link together to form a…

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Q: A voltaic electrochemical cell is based on the two half-reactions: Cu²+ (aq, 4.55 M) + 2e → Cu(s)…

A: To calculate the value of cell potential at 25°C , we will use nernst equation at 298 K : Ecell =…

Q: Use standard reduction potentials to calculate the equilibrium constant for the reaction: 2Fe³+ (aq)…

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Q: едиат Cambuti b. 3 AIBr, (aq) +_ Na,SO, (aq) - aluminum sulfate + sodium bromide veketion 1 AlBr(ag)…

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Q: What is the net ionic equation for the reaction below?  2 FeCl3(aq)  +  3 Ca(OH)2(aq)  →  3…

A: Given -> 2FeCl3(aq) + 3Ca(OH)2(aq) ----> 3CaCl2(aq) + 2Fe(OH)3(s)

Q: Which of the following species exhibit hydrogen bonding? (Check all that apply.) HBr NO3 H₂O SF4…

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Q: For which equation does the enthalpy change for the reaction define the molar enthalpy of formation…

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Q: A solution contains 1.29×10-² M lead nitrate and 1.16×10-2 M silver acetate. Solid potassium iodide…

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Q: Chlorophyll has the chemical formula C55H72MgN4O5 if you have 350 grams of chlorophyll how many…

A: This can be calculated using the molar mass calculation . Detail description is given below

Q: For the following molecule. a) How many hydrogen atoms are present? [Select] b) What is the overall…

A: The concept used in this question is taken from aromatic chapter of Organic chemistry.  First…

Q: Balance the chemical equation by giving the appropriate coefficient for each molecule in the below…

A: Given -> NCl3 ---> N2 + Cl2

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.