9.) When atoms are heated or stimulated to high energy levels, they release light. Which of the following describes this physical phenomenon?      Atomic spectrum   Atomic emission   Atomic absorption

Q: On a piece of paper, with a pen, write a complete, step-by-step mechanism for the 1,4-addition of…

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Q: Calculate AG° (in kJ) of the following reaction using the provided thermodynamic data: C2HA(g) +…

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Q: Consider this equilibrium reaction at 400 K. Br, (g) + Cl, (g)=2 BrCl(g) K. = 7.0 If the composition…

A: Equilibrium constant is defined as ratio of concentration of product upon reactant at equilibrium.

Q: At a certain temperature, 0.680 mol SO, is placed in a 4.50 L container. 2 SO, (g) = 2 SO,(g) +…

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Q: (a) Calculate the percent ionization of 0.00550 M butanoic acid (K, = 1.5e-05). % ionization (b)…

A: a) Given: Concentration of butanoic acid (Assuming HA) = 0.00550 M

Q: Question 5 of 21 Consider the reversible reaction A(g) B(g) Which K values would indicate that there…

A: 5) here option c and d is answer

Q: The change in enthalpy (AH) for a reaction is 34.4 kJ/mol. The equilbrium constant for the reaction…

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Q: QUESTION 2 According to molecular orbital theory, what is the bond order in the cot2 jon? QUESTION 3…

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Q: Calculate the heat of reaction AH for the following reaction. 2 HBr(g)-H,(9) + Br (g) You can find a…

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Q: Nicotine is a diprotic acid with Ka= 1.0 x 10-6 and Ka2= 1.3 x 10-13 Calculate the pH of a 0.020 M…

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Q: For the reaction C(s,graphite) + 02(g)CO2(g) AG° = -394.4 k) and AS° = 2.9 J/K at 327 K and 1 atm.…

A: The reaction given is, And moles of C reacting = 2.04 mol.

Q: The half-life of any first order reaction: (select all that applies) Group of answer choices is the…

A: The half - life of any first order reaction :

Q: Carbon disulfide is prepared by heating sulfur and charcoal. The chemical equation is S, (g)+C(s) =…

A: The reaction given is, => S2 (g) + C (s) ↔ CS2 (g)                            Kc = 9.40  Given:…

Q: Radon is a radioactive gas found below ground. If a sample of radon occupies 299 mL at 25 ?C, what…

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Q: At a certain temperature, the equilibrium constant, K., for this reaction is 53.3. H,(g) + I,(g) = 2…

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Q: Which reagent would accomplish the following transformation most efficiently? OH CI (A) Cl2 (B) HCI…

A: The reaction given is,

Q: 38.)In a cyclotron facility, 106 atoms of F-18 were created. The half-life of F-18 is 110 minutes.…

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Q: The law of thermodynamics states that every spontaneous process moves towards greater entropy. O…

A: The second law of thermodynamics helps us to predict whether the reaction is fisible or not .…

Q: How many atoms would be present in a 894.22 amu sample of an element that weighs 11.28 amu per atom?…

A: Here we are required to find the number of atoms present in 894.22 amu of sample

Q: What is the heat capacity of ethene and carbon dioxide. In details explain the answer (drawings is…

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Q: Match the items in the left column to the appropriate blanks in the sentences on the right. Reset…

A: In this question, we have to fill in the blanks.

Q: Use the information provided to determine ΔH°rxn for the following reaction:   ΔH°f (kJ/mol)…

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Q: 3 How would you prepare this compound? More than one step is necessary. You may use any organic and…

A: The reaction given is,

Q: What is the meaning of each quantity? pre-exponential factor measure of particle size as a target…

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Q: How much energy must be removed from a 125 g sample of benzene (molar mass = 78.11 g/mol) at 425.0 K…

A: Total heat released = 67.67kJ.  Negative sign show release of energy.

Q: Natural gas burns in air to form carbon dioxide and water, releasing heat. CH4(g) + O2(g) → CO2(g)…

A: Given : Mass ( m ) = 23 gram Temperature (∆T) = 32°C   Find mass of CH4 = ??

Q: HBr(aq) and Mn(OH)3(s) Express your answer as a chemical equation. Identify all of the phases in…

A: • The given incomplete reaction is,       HBr(aq) + Mn(OH)3(s) →    • We need to determine the…

Q: Problem 1. Draw and name the products by hybrid orbitals from the below reaction. HCl

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

Q: Calculate the percentage composition of all the atoms/elements in magnesium chlorate, Mg(CIO3)2.

A: Given :- chemical formula of Magnesium chlorate = Mg(ClO3)2  To determine :- percentage composition…

Q: TFA CHo Clz

A: We have to give the reaction mechanism.

Q: Correct the following sets of quantum numbers in an atom? (a) (1, 0, ½, ½) (b) (3, 0, 0, +1/2) (c)…

A: The sets of quantum numbers given are,

Q: Which of the following is the principle of Atomic Absorption Spectroscopy?. a. Medium absorbs…

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Q: Two of the following reactions cannot occur under any circumstances and a third cannot occur by…

A: Solution-

Q: 5. What is the maximum number of stereoisomers for the following molecule? Draw its enantiomer in…

A: The molecule given is,

Q: is a device used to measure the change in heat associated with a chemical reaction. The actual…

A: The device used to measure the change in heat associated with a chemical reaction is ___________

Q: APE er 4. Which of the following has the smallest diameter? a) o c)F d) 5. What is the hybridization…

A: 1. Species which posses same number of               electron  are known as  isoelectronic species.…

Q: he electron-domain geometries for th

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Q: 24 20.0 mL of a 0.100 M butanoic acid solution is titrated with a 0.250 M solution of Ba(OH)2…

A: 1.) In this base is added to a weak acid ( butanoic acid ) , so we would calculate moles of acid and…

Q: AR a - 4CDU-AD, 4CBa How many grams of AD, IsMW-285.72 g/mol would be made from the reaction of…

A: The balanced equation given is  AB4 (aq) + 4 CD (aq) → AD4 (aq) + 4 CB (aq) Number of molecules of…

Q: 9. Count the electrons in the following complexes and determine the oxidation state of the metal. a.…

A: Organometallic is branch of chemistry in which we deal with metal carbon bond.

Q: A voltaic cell is constructed from a standard Cr3+ Cr half cell (E° red %3D -0.740V) and a standard…

A: Standard reduction potential: A solution with higher (more positive) reduction potential then the…

Q: What is the predicted product of the reaction shown? OH H2SO4 LOH యర II III OH ОН LOH IV

A: The reaction given is,

Q: 28 Consider the reaction scheme and give the structures of A. B, C and D. HOCH,CH,OH Mg, dry ether…

A: We have to complete the reaction. 28.

Q: e electron-domain geometries for the the words in the left column to the

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Q: Which is an oxidation half-reaction? Zn → Zn2+ + 2 e O 2 H2 + O2 –→ 2 H2O O 2 HCl + Ba(OH)2→ 2 H2O…

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Q: How many grams of lithium formate (LiCHO2) need to be dissolved in 184 mL of a 0.664 M formic acid…

A: Given: Concentration of HCHO2 i.e. the weak acid = 0.664 M Volume of solution = 184 mL = 0.184 L…

Q: At 10°C, the vapour pressure of a liquid substance is 6.83 x 102 Pa. At 30°C, the vapour pressure is…

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Q: Complete the following reactions by providing either the reactant(s), product(s) or reagent(s) where…

A: Detail solution is given below

Q: Consider the reversible reaction A(g) = B(g) Which K values would indicate that there is more B than…

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Q: Consider the following phase change equilibrium: CHCI3 (s) =CHCI3 (1) If AH° is 9.73 kJ/mol and AS°…

A: we need to calculate the melting point of CHCl3 in K