Which phrase beat describes the structure of an atom A: Nucleus surrounded by electrons in set orbits B: a core of protons surround by an electron cloud C: a solid ball of protons, neutrons, and electrons D: a Nucleus surrounded by an electron cloud

Q: reacting 1.55g of beryllium in water at st conditions of temperature and pressure

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Q: Give the product. O a.. O b.. Oc.. O d.. O e.. Of.. Br₂ (2 eq) (a) (b) A Moving to another question…

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Q: Part C nmunication (3 marks) 3. OBSERVATION: A piece of chalk (calcium carbonate) was placed into…

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Q: How many moles of Al2O3 can be formed when a mixture of 0.36 moles of aluminum and 0.36 moles of…

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Q: erosene, C₁2H26(1), is a hydrocarbon used in jet fuel. The combustion of kerosene can be presented…

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Q: Use the following information to answer question 19. Students observed the Hoffman apparatus shown…

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Q: Use the following information to answer question 36. Trichloroacetic acid, CC13COOH(aq), is used in…

A: Acidic species after loosing proton form conjugate base. Amphiprotic species is species which can…

Q: Rank the following protons in decreasing order (most to least) of acidity. OH III ΤΗ ||| I >III O…

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Q: Treatment of 1,2-dimethylcyclopentene with OsO4, followed by aqueous NaHSO3, produces which of the…

A: -> when OsO4/NaHSO3 added to alkene then syn diol product is formed .

Q: Write four factors that will influence the adsorption capacity?

A: Adsorption is a surface phenomenon that occurs when a gas or liquid solute accumulates on the…

Q: Explain which compound is more acidic than the other. I II HO HO II is more acidic because of…

A: We have to predict the correct option regarding acidity of compound.

Q: 8) What are the roles of MnSO4 and NaN3 in the Dissolved Oxygen determination experiment?

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Q: What is the correct configuration of this alkene? CI an Br OZ O E

A: Z/E isomers are geometrical isomers of alkene compound. Here we have to identify wheather the given…

Q: Identify the configuration of the alkene: (E) or (Z). Br. OZ Not a case of E vs. Zisomerism. OE

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Q: What is (are) the expected major product(s) for the following reaction sequence? enantiomer ||| OI…

A: -> BH3.THF / H2O2,NaOH is reagent used for hydroboration -oxidation reaction . In which overall…

Q: What is the hybridization state of the carbon (1) atom in the following compound? O sp3d sp sp3 H…

A: In the given Compound Carbon I has one single bond with left side Carbon atom , one single bond with…

Q: Select the compound that is most soluble in water. A NH₂ CEN C всі O + NH3 D NH₂

A: In this question, we will select the most soluble compound in the water.  You can see the details…

Q: 1 way you could increase how quickly you could dissolve 0.5g of carbon dioxide gas into 100g of…

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Q: QUESTION 26 Arrange the following in order of INCREASING UV maximum wavelength of absorption 6e,…

A: Organic compounds with pi electron can absorb energy in uv level.Most of the  colour organic…

Q: Which reaction would give a carboxylic acid? a) c) en H 1) LIAIH 2) H₂O* H₂ Ni b) d) MgBr 1) CH, 0…

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Q: An aqueous solution contains 0.28 M hydrofluoric acid. One Liter of this solution could be…

A: A buffer solution is formed by the mixing of weak acid and its conjugate base or by the mixture of…

Q: Calculate the concentration of each ion in the following solution in which NO reactions occurs:…

A: Given -> Volume of NaOH = 250 ml Molarity of NaOH = 0.45 M Volume of KOH = 225 ml Molarity of KOH…

Q: Use the following information to answer question 35. An Equilibrium System N₂O4(g) + energy = 2…

A: In the graph initially there is equilibrium between N2O4 and NO2 then N2O4 is added ( as shown in…

Q: What is the electrophile of the product reaction?

A: An organic reaction can either undergo by the formation of nucleophiles and electrophiles or it can…

Q: Predict the major reaction pathway that will occur under these conditions. SN1 SN2 E1 E2 Br NaOAc…

A: Here we are required to predict the product.

Q: What is the first step of the following dehydration? зон о O O LOH H-OSO,H LOH₂ зон ОН ОН H₂SO4 ОН…

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Q: Identify the major product of this reaction of an alkene. = ||| ОН ОН 1. Hg(OAc)2, H20 2. NaBH4,…

A: Given reaction is :  Options are :

Q: Me Br 1. Ph3P NaH, THF CO₂Me 2. LAH, THF 3. mCPBA, CH₂Cl₂ ?

A: The solutions are given below

Q: Identify the electrophilic site in the following molecule. C other than carbonyl O of carbonyl OC of…

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Q: at is the correct order of decreasing reactivity ost reactive first) of these compounds toward…

A: When electron donating groups are attached to benzene ring.so, they increase the reactivity towards…

Q: What is the IUPAC n

A: According to IUPAC 1st give numbering to longest chain according to priority order i.e ethyl will be…

Q: Important: Choose two reduction half-reactions from this website…

A: The given half-reactions are: Li+(aq) + e-  ---> Li(s) ; Eored  = - 3.040 V  Rb+(aq) + e-…

Q: Determine whether the two structures in each of the following pairs represent enantiomers,…

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Q: 2. There is a phosphate buffer with 0.1 M of NaH2PO4 0.1 M of Na2HPO4. Calculate pH of buffer…

A: pH of a buffer solution can be calculated using H-H equation.

Q: A solution has an H* concentration of 3.8 x 10-9 mol/L. Calculate the solution's pH. Round your…

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Q: Using Cahn-Prelog-Ingold rules, assign the stereochemical configuration for this molecule. R Z E S H

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Q: What volume of hydrogen gas will be produced by reacting 1.55g of beryllium in water at standard…

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Q: Each year, residential homes in the United States use more than 1.05×1014 L of natural gas, which is…

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Q: Part 1 Ag (aq) + Cl(aq) →→→ AgCl(s) J/K

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Q: Which of the following is the correct mechanism for the elimination reaction of 2 bromo-2,3-…

A: We have to draw the correct mechanism for the elimination of 2-Bromo-2,3-dimethylbutane with…

Q: 1. NaNH, 2 Br 3. H₂, Lindlar's catalyst

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Q: At constant temperature, for which of the following systems at equilibrium will decreasing the…

A: Using le chatelier principal we can determine the direction of equilibrium. According to this…

Q: Consider the reaction H₂(g) + C₂H4(g)→→→→→C₂H6(g) Using the standard thermodynamic data in the…

A: Solutions Using the thermodynamic data are given table

Q: Chemistry Provide the product structure for the reaction of acetylene with the following sequence of…

A: (1)->NaNH2 (2)->CH3CH2Br (3)->H2/Lindlar catalyst (4)->BH3 - THF  (5)->H2O2,NaOH

Q: An experimental catalyst used to make polymers has the following composition: Co, 23.3%; Mo, 25.3%;…

A: Determination of empirical formula   The percentage composition of elements present in given…

Q: By what mechanism is the following reaction likely to occur? E2 Br SN2 + NaSH Mixture of SN1 and E1…

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Q: Which of the following radicals is least utable ? O 0 0 O

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Q: Choose the Newman projection that best represents the wedge-dash structure. CI H CH3 H3C H H CH3 ||…

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Q: Jacques Charles found that increasing the temperature of a gas sample at constant pressure would…

A: We have to found whether there is increase , decrease or no change in Volume of gas by increase…

Q: Which of the following rows identifies the common classification of C₂H4(g) and C₂H4Cl₂(g), and…

A: Answer  of ist question is first line of the table: aliphatic| unsaturated| saturated