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Q: Which of these substances are used in the reduction of metal ores? I. II. CO III. O2 IV. H2 O I only...

A: The addition of oxygen is known as oxidation reaction and the removal of oxygen is known as reductio...

Q: Which of the following devices should be used to heat the distillation flask? a) heating mantle b)...

A: Distillation process involving the conversion of a liquid into vapour that is subsequently condensed...

Q: [Review Topics] From the choices given below select the aldohexose that yields the same alditol as D...

A:

Q: When 4.33 of a certain molecular compound X are dissolved in 30. g of benzene (c,H,), the freezing p...

A: Given: The mass of compound X dissolved in 30 g of benzene = 4.33 g The Kf for benzene = 5.07 oC.kg....

Q: "Gravimetric form" in gravimetric assay of Barium-ions is: BaSO4 BaCO; BaO BaF2

A: Gravimetric analysis: gravimetric analysis i an analytical a method of quantitative chemical analysi...

Q: For each of the following transfomations from the citric acid cycle, describe the type of reaction t...

A: As per rule, only the first question can be answered

Q: unknow QuestionTIV A steel tank starts with 0.697 moles of argon gas in it, with a pressure of 1.058...

A: Given Initial moles = 0.697 Initial pressure = 1.058 atm Mass added = 132.59 g

Q: a) Draw the Lewis structure for CH2F2. b) What is the shape or geometry at the center atom? Tetrahed...

A: Lewis structure of CH2F2  

Q: 11) Sn,S, is written as SnS, instead by dividing by the common factor of 2 terli ens O

A:

Q: A student determines the value of the equilibrium constant to be 1.01×1018 for the following reactio...

A:

Q: The density of mercury is 13.6 g/cm^3. What is the mass of 6.50 cm^3 of mercury? (^ means that the n...

A: Given  Density of mercury = 13.6 gram/cm3  Volume of mercury = 6.50 cm3 Mass = ? 

Q: Heterocyclic compounds plays an important role in our daily life. They are mainly used in pharmaceut...

A: Thiophene is an aromatic compound. It mainly gives electrophilic substitution reaction.

Q: Propose reactions to synthesize each compound above. (Note: If the reaction procedure is not your or...

A:

Q: dissolving 4.555 g of ZnSO 4 in 150.0 g of water? The freezing point constant of water is 1.86 °C/mo...

A: We have to calculate the decrease in freezing point of the guven solution

Q: When Forrest Gump "just felt like runnin", it is estimated he ran 3.0634 x 10 km. Assuming an averag...

A: We have to find out the day he was running

Q: Complete the chart. Show the work to determine the charge of the transition metal Formula Name Name ...

A:

Q: Grams of diprotic acid Initial buret reading of NaOH(aq) Final buret reading of NaOH(aq) Volume of a...

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Q: cyclopentanol Na,Cr,O, H,SO,

A:     To find:-  What is V?

Q: H H H. H,C H,C H,C H,C H H3C. H3C

A: Interpretation: We have to draw the curved arrows mechanism for the given reaction.

Q: For numbers 1-6, refer to the given choices below. A. Isotopes B. Isobars C. Isotones 1. 23892U and ...

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Q: Provide the major monobromination product for each of the following reactions:

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost...

Q: Aqueous sulfuric acid (H,SO,) reacts with solid sodium hydroxide (NAOH) to produce aqueous sodium su...

A: Chemical Reaction equation :-  H2SO4  +  NaOH   ---->  Na2SO4  +  H2O  Balanced chemical Reaction...

Q: nearly odorless, but the commercial product smells vile. Carbon disulfide is used in the manufacture...

A: Form given data , calculate the standard enthalpy change for given reaction : 

Q: Question 9 of 20 Write the complete nuclear equation for the bombardent of a "Be atom with an a part...

A: In the given reaction alpha particle is bombarded on 9Be atom to yield 12B (alpha particle = 24 He) 

Q: 347. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of solution. The osmot...

A: 1- First calculate the molar concentration of protein solution :  π = CRT  0.234atm = C × 0.0821atmL...

Q: The common laboratory solvent benzene is often used to purify substances dissolved in it. The vapor ...

A: Given: The vapor pressure of benzene = 73.03 mm Hg The mass of solute dissolved = 9.071 g The mass o...

Q: Question 19 How many grams of CaCl2 are needed to prepare 593.3 mL of 2.38M CaCl, solution? 156.48

A: Q19                      

Q: A steel tank starts with 1.241 moles of argon gas in it, with a pressure of 1.903 atm. 150.65 additi...

A: The ideal gas equation is  PV = nRT  R = gas constant At constant volume and constant temperature , ...

Q: Consider the following thermochemical equation: 4A B + 20 AH = -266 kJ/mol What is the value of AH f...

A:

Q: Calculate the % (m/V) of 156 mL solution containing 18.2 g sodium chloride.

A: Given mass of solute = 18.2 g volume of solution = 156 ml

Q: Suppose there was a large air bubble in the tip of the acid burette during the titration and it was ...

A: An acidic substance can be readily observed by the enhancement in the concentration of the hydrogen ...

Q: Draw all possible resonance structures for CNF. Then, assign formal charges for all atoms in each st...

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Q: sample of carbon monoxide was collected over water at a total pressure of 750. torr and a temperatur...

A: Daltons law of partial pressure- Total pressure of mixture of gases is some of partial pressure of i...

Q: A 29.4 mL sample of 0.301 M ammonia, NH3, is titrated with 0.317 M hydroiodic acid. At the equivale...

A: The pH at equivalence point = 4.88

Q: How many neutrons are needed to initiate the fission reaction? 235U+ ?n 139 Ba +Kr + 3n 56 number of...

A: The reactions given are,  

Q: How many grams of CaCl2 are needed to prepare 606.5 mL of 0.33 M CaCl2 solution?

A: Given: Concentration of CaCl2 = 0.33 M And volume of CaCl2 solution = 606.5 mL = 0.6065 L           ...

Q: What is the formula mass of Propane (C3Hg)? O 44.1 amu O 65.6 amu O 92.4 amu O 112.8 amu O 164.8 amu...

A: Note:- As per bartleby guidelines, I need to solve the first question in case of multiple questions....

Q: Draw the Lewis structures for BCI3 and BHCI2. Label each structure as either polar or nonpolar (hint...

A: Draw lewis structure of BCl3 and BHCl2 ?

Q: Chemicals on skin, clothing, and eyes: (1) Any chemicals contacting one's eyes should be immediately...

A: Since you have posted multiple questions as per guidelines we can answer only one per session . If y...

Q: Suppose

A: According to the question, we are using Calcium hydroxide (Ca(OH)2) as the titrant instead of sodium...

Q: When the Pb2+ concentration is 1.19 M, the observed cell potential at 298K for an electrochemical ce...

A: Since you have posted multiple questions as per guidelines we can answer one per session . if you wa...

Q: Consider the three-step mechanism for the reaction of A through intermediates B and C to produce D s...

A: In a multi-step mechanism, A rate-limiting (or rate-determing) step is the slowest step in the react...

Q: Radium-226 will undergo alpha decay. a.)write out this nuclear reaction b.) calculate the mass defec...

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only....

Q: Which of these statements about redox reactions is incorrect? O Oxidation is the gain of oxygen. O O...

A: Since u have posted multiple questions. We will solve the first question for u. To get the remaining...

Q: Question 15 Which among the following is an equivalent of 0.01%? O 100 ppm O 100 ppb O 0.000001 ppm ...

A: 0.01%=0.01×1/100               = 10-4 1ppm=10-6 So,  100 ppm= 100×10-6 = 10-4 Thus 0.01%=100 ppm    ...

Q: a) Draw the Lewis structure for CF3'. Show credit. b) What is the shape or geometry at the center at...

A:

Q: True or false: When forming conclusions from an experiment, the researcher should compare the result...

A: Que 1 :  Answer : TRUE Reason : During research process, Initial hypothesis is always taken into acc...

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolvin...

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Q: Rationalize the color for the following organic dyes: HO Nao,s Nao,s cO.Na Nao,s sO,Na

A: As per the rules only first three subparts can be answered.

Q: (+) HO ОН + K,CO3 OK KHCO3 + pKa = 10

A: