Which of the following characterizes an alpha ray? Choose all that apply. O is less penetrating than a gamma ray |is composed of particles carries a positive charge is more penetrating than a gamma ray carries a negative charge

Q: How was the precipitate obtained after filtration? a. By drying the precipitate on the filter paper…

A: The precipitate is obtained by drying the precipitate on the filter paper using a desiccator.

Q: N2(g)+2O2(g)⟶2NO2(g)ΔH=+66.4 kJ    Use Reaction 3.   How much energy (in kJ) is absorbed when…

A: Recall the reaction, N2 + 2O2 ------> 2NO2  ∆H = +66.4 KJ  Volume of NO2=159 L  Energy absorbed =…

Q: Which atom has the largest exothermicity associated with its electron affinity? 1. F 2. N 3. H 4. Cl…

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Q: Consider these reactions: Reaction 1: H2(g)+Cl2(g)⟶2HCl(g)ΔH=−184.6 kJ  Reaction 2:…

A: Given :  Reaction 1  H2(g)+Cl2(g)⟶2HCl(g)    ΔH=−184.6 kJ  To calculate :-  Amount of Cl2 has…

Q: A sample of sodium undergoes a temperature change of +11.9 °C while absorbing 549.7 joules of 7.…

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Q: Which is a contributing resonance structure of: b) c)

A: Given structure is :  What is the resonance contributing structure of the given structure = ?…

Q: The first three ionization energies of an element X are 495, 1245, and 1391 kJ-mol-1. What is the…

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Q: Given the titration curve of a weak acid, at which region is the buffer capacity considered…

A: Answer: In this question buffer that we are going to have will be the mixture of weak acid and its…

Q: Enthalpy Entropy (ΔΗ)? Туре Spont.? (-AG)? Reaction (AS)? Yes, No, or Maybe (TD*) CSH12(g) + 802(g)…

A: The reactions given are,

Q: When the nuclide iron-55 decays by electron capture: The name of the product nuclide is The symbol…

A: Iron 55 is radioactive isotope and it decay    by electron capture to produce manganese-55

Q: Propose a structure of an alkyl halide (including its stereochemistry) that gives only (E)-…

A: Stereochemistry is branch of chemistry in which we deal with arrangement of atoms in molecules.

Q: C HoC C -CH3 2 H-Br: CH3 H3C D CH3 CH CH3 2 н- H3C E CH3 CH3 :Br -Br H3C CH

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Q: Consider the following system at equilibrium where K. = 77.5 and AH° = -108 kJ/mol at 600 K. Co (g)…

A: Given- CO(g)+Cl2(g) <->COCl2(g) Kc=77.5 ∆H°=-108kJ/mol

Q: A proposed mechanism for the gas phase reaction between nitrogen monoxide and oxygen is as follows:…

A: A chemical reaction can be added or subtracted like an algebraic equation. The given reaction…

Q: 1.Calculate the molarity of a solution made by dissolving 15g NaOH in water and diluting to 1.00…

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Q: Which of the following statements about the SF experiment is/are CORRECT? The monochromator is…

A: A multiple choice question based on analytical process that is to be accomplished.

Q: explain the components of the phase diagram of benzene

A: Solution - According to the question - Phase diagrams are divided into three single phase regions…

Q: The rate of the given reaction is 0.480 M/s. A + 3 B → 2C What is the relative rate of change of…

A: Given: Rate of the reaction = 0.480 M/s

Q: solution contains a mixture of Na2CO3 and NaOH. Using phenolphthalein indicator 25 mL of mixture…

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Q: What Is the relationship between these molecules? CI HC HC A. Identical B. Configurational…

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Q: ch time is required fc

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Q: There are three possible square-planar trans isomers (trans NO2-Br, trans NO2-py and trans NO2-NH3)…

A: To synthesize all three possible square-planar trans isomers starting from appropriate plantinate…

Q: 3. The complete combustion of benzoic acid, CH&O2 is represented below 2 C,H6O2 (s) + 15 O2 (e) → 14…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: Given the coordination compound: [MoCO3(H2O)2][Zn(CN)3OH(en)2]. what is the ligands of the…

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Q: Based on the phase diagram illustated below, what is the phase condition of the given two-component…

A: Given phase diagram:

Q: 4. OH OH он 7. CH3 H3C 5.

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Q: Question:- How many grams of NaOH would you need to make 2542 mL of a 4 M NaOH solution (m.w. =…

A: Given-> Volume = 2542 ml = 2.542 L       (1 L = 1000ml) Molarity = 4M Molecular weight of NaOH =…

Q: Provide a mechanism for the following transformation and show all resonance forms of the important…

A: Reaction :              The 1-chloro 2-nitrobenzene reacting with the sodium hydroxide, Water…

Q: Which of the following names is correct? a) meta-aminonitrobenzene b) 4-nitrobenzoic acid c)…

A: The incorrect name is given below

Q: 180.37 mL of 1.10 M organic salt was mixed with 185.23 mL of Ethanol (d= 0.789 g/mL, MW…

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Q: Reduction reaction of 1-phenylethanone with lithium aluminium hydride yields a racemic mixture of…

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Q: Assuming that the density of silica gel is 2.65 g cm-3 and that the silica particle are spherical…

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Q: Type at least two definition/description /property/ example of an acid and a base that you could…

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Q: etermine the relationship between the observed/apparent value (EX) VERSUS that of the true value…

A: T0 Determine the relationship between the observed/apparent value (EX) VERSUS that of the true value…

Q: The gas phase decomposition of nitrosyl chloride at 400 K NOCI(g)→NO(g) + ½ Cl2(g) is second order…

A: Given-> Rate constant (K) = 5.90 × 10-4 M-1s-1 Initial concentration = 8.28 × 10-2 M Time = 4.82…

Q: element is oxidized and which is reduced?

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Q: Which molecule has (R)-configuration? (Atomie mass : H=1; C=12; N=14) c) NH2 b) CH3 e) CH3 NH2 d) H.

A: Note : Give the priority to the atoms at chiral center according atomic no. Then the order of…

Q: Given the volume of 0.4596 M NaOH used determine the concentration of 19 ml sample each from…

A: We are performing here an acid-base titration to determine the concentrations of an acidic compound…

Q: Use the tabulated half-cell potentials to calculate the equilibrium constant (K) for the following…

A: 2Al(s) + 3 Mg2+(aq) -----> 2Al3+(aq) + 3Mg(s) E°Mg2+/Mg = -2.37 V E°Al3+/Al = -1.66 V

Q: Q3. (A) Identify the following compounds as chiral or achiral.

A: Identify the compounds as chiral or achiral.

Q: Consider the reaction 2CO2(g) + 5H2(g)C2H2(g) + 4H2O(g) Using the standard thermodynamic data in…

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Q: If the same amount of heat were added to individual 1.0 g sample of water, methanol, and aluminum,…

A: NOTE: It will be the greatest temperature change in the question and not the energy change because…

Q: mechanism for the of hydrolysis (1-bromo of Propose a reaction methylpropyl)cyclohexane. Including…

A: Stereochemistry is branch of chemistry in which we deal with arrangement of atoms in three…

Q: In 3-10 sentences, explain by citing the chemical reactions involved in how buffers resist a drastic…

A: A question based on equilibrium concept that is to be accomplished.

Q: 19 g of unknown organic sample was dissolve in 640 mL of Dicloromethane (DCM). The boiling point of…

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Q: Consider the electrolysis of a mixture of molten AIB33 and MgBr2. Identify the half- reaction…

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Q: The pH of a 0.300 M solution of NaOAc is:   (For HOAC, Ka = 1.8 x 10-5) a. pH = 4.90 b. pH = 11.37…

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Q: Which of the following statements is correct about polarography? I. It is the earliest voltammetric…

A: The earliest voltammetric technique is polarography, developed by Jaroslav Heyrovsky.  Polarography…

Q: A chemistry graduate student is given 500. mL of a 1.20M nitrous acid (HNO, solution. Nitrous acid…

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Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction entropy…

A: Given, Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l) Species                       S°(J/K.mol) Fe2O3(s)…