The half-life of cesium-129 is 32.0 hours. How much time is required for the activity of a sample of cesium-129 to fall to 17.2 percent of its original value?

Q: the reaction A + B --> C + D rate = k[A][B]^-2 has an initial rate of 0.0670 M/s, what will the…

A: Answer:- This question is answered by using the simple concept of calculation of rate of reaction on…

Q: V 3- 4₂(x) 2- 4₂(x) 0 Y₁(x) y (x) m лати A ŵ 0 X ших (a) 0 X (b) \v₂ (x) ² / / hv \_(x)? | ^4 ²/3 -…

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Q: The isotope of plutonium 238 pu. Part 1 of 2 (a) If the half-life of 238 Pu is 87.7 yr, write a…

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Q: When aqueous solutions of lead (II) nitrate and potassium iodide are mixed, a precipitate forms.…

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Q: Draw the major product of this reaction. Ignore inorganic byproducts. 1. NaOEt, room temperature 2.…

A: The given reaction is an example of the alkylation of ketone enolate. The base used in this reaction…

Q: CH₂-C=C-H NaNH2, I I CH₂BT II H₂O, H₂SO4 final HgSOA product

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Q: Identify the type or types of intermolecular forces present between molecules of the compound…

A: -> intermolecular force is an attractive force that arises between the atoms or molecules. ->…

Q: A certain half-reaction has a standard reduction potential d -0.55 V. An engineer proposes using…

A: We know at anode oxidation takes place and at cathode reduction takes place. In the question it is…

Q: A H1 NMR signal is observed at 117.0 Hz (downfield of TMS) on a 1.20×102‑MHz instrument. a) What is…

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Q: What is the density in g/L of Chlorine gas at STP (remember chlorine is diatomic)?

A: Given -> At STP -> T = 273 K  P = 1 atm

Q: 16) Identify the following: (a) The Lux-Flood acid in the reaction below is Fe₂O3 + 3C0₂ 2Fe +3C03².…

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Q: 11.22M) If you let this battery run at 3.6 amps, how long in minutes would you have to wait to lose…

A: Balanced cell reaction 3Fe2+ + 2Al  -----> 3Fe  + 2Al+   At anode oxidation takes place. Al…

Q: The mineral chalcocite, Cu2S, has been mined for centuries and is one of the most profitable copper…

A: Answer: This question is based on stochiometric calculation where moles of copper needs to be…

Q: What is the molarity (M) of the aqueous solution that contains 3 g of LiNO, in 170 mL of solution?

A: To solve this problem we have to calculate the Molarity of the given solution.

Q: Concentration of calcium in a sample may be determined by precipitation using the chromate ion, Cro…

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Q: What is a “Morse potential”? (max. 50 words)

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Q: Re-order each list of elements in the table below, if necessary, so that the elements are listed in…

A: For Si,P,Cl order of electronegativity will be : Si<P<Cl when we move left to right in…

Q: 1. Consider the following reaction: 2 NO₂ → 2 NO + 0₂ If 0.035 mol of NO₂ is placed in an empty…

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Q: A patient is given 0.050 mg of Tc-99. How long until the isotope decays to 6.3 x 10-3 mg? (Half life…

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Q: Categorize each molecule according to which hybrid orbitals are used by the central atom to form.…

A: Hybridisation is the concept of mixing atomic orbitals to form new hybrid orbitals suitable for bond…

Q: In the following reaction, what is the quantity of heat (in kJ) released when 3.91 moles of CH4 are…

A: One mole of methane react with oxygen and produced carbon dioxide and two mole of water

Q: Write the balanced molecular equation and net ionic equation for the neutralization reaction between…

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Q: complete answer please send me

A: We have been given a reaction and we have been asked to write the reagent used in this…

Q: Thank you so much!!! How many grams of would you have gained on the cathode side during the same…

A: Answer: Since, same current for the same time period will pass through both electrodes, therefore…

Q: AH°f is zero for H(g). O True O False Question 6 AH° is zero for H₂(g). O True False

A: ∆Hf° values for H(g)and H2(g) = ?

Q: Question 16 In dry air, sound travels at 343 m/s. If you are 48 miles away from a lightning strike,…

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Q: how do you do part iv

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Q: 19) Which of the following is not a valid set o four quantum numbers? (n, 1, m/, ms)

A: In an atom, the electrons are present in the atomic orbitals. The energy, size, and shape of atomic…

Q: ited The equilibrium constant, K, for the following reaction is 6.40 at 379 K. 2CH₂Cl2(g) CH4(g) +…

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Q: Write the net ionic equation for the precipitation reaction that occurs when aqueous solutions of…

A: First we will write molecular equation and then write ionic equation . Then cancel spectator ions to…

Q: Below is a molecule of acetic acid (CH3COOH) interacting with water molecules. H. brigh :O:H I H H…

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Q: 5) What is the major organic product of the reaction shown below? F NO₂ NO₂ O'Na- Jou N HO

A: Nucleophilic aromatic substitution is a substitution reaction in organic chemistry in which the…

Q: What is the final temperature (in °C) of 140.1 g of water (specific heat = 4.184 J/g °C) at 24.20 °C…

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Q: Using these metal ion/metal standard reduction potentials: Cd2+ (aq)|Cd(s): -0.41 V; Zn²+ (aq)…

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Q: охо CH₂CO3H ?

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Q: 6. Complete the following table. Show all calculations in the open space, clearly labeled. Solution…

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Q: Describe the strongest type of interaction (e.g., ion-dipole) possible in each site

A: We have to tell the strongest interaction force possible in each site.

Q: 57. Find A.Sº for the formation of CH₂Cl2 (g) from its gaseous elements in their standard states.…

A: The concept used here us from Chemical thermodynamics of physical chemistry.  Entropy is the measure…

Q: 1. All the following have a linear shape except 03 B) O3 C) 13 D) XeF2 E) CS2 A) BeCl₂ B)

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Q: Q6.The chemical equation for the complete combustion of ethane, C2H6 (g) is: C2H6 (g) + O2 (g) -…

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Q: 요 HO+] + HO. (A) OH (B) • OH

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Q: The balanced combustion reaction for CH is 2CH(1) + 150₂(g) → 12 CO₂(g) + 6H₂O(l) + 6542 kJ If 7.400…

A: Combustion reaction is a reaction in which a substance reacts with oxygen gas to produce carbon…

Q: Which of the following is the correct option for product B of the reaction below? Cl₂, H₂O NaH A. B.…

A: Alkenes treated with chlorine (Cl2) in the presence of water will form chlorohydrins in which Cl and…

Q: QUESTION 7 The functional group contained in the compound CH3CH2CH=CHCH3 is a(n) aldehyde. alcohol.…

A: In this question, we will see the correct functional group for the given compound which have carbon…

Q: Classify each molecule below as aromatic (A), anti-aromatic (AA), or non-aromatic (NA). N N-H 8

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Q: Provide balanced equations for the following: ___C7H14 + ___O2 → ___CO2 + ___H2O          ___KO2 +…

A: To balance the reaction look for balancing each atom on both sides of the reaction. If we get the…

Q: 1) Name or draw the following CI as needed.

A: Given : name and structure of molecules

Q: What are the molecular and empirical chemical formulas of a compound made up of these molecules? H H…

A: The chemical formula that represents the number of atoms of all the elements present in the molecule…

Q: Give the number of p orbitals in the following hybrid orbital (use numbers, ex. "1", not words) type…

A: Different orbitals of same phase can combine with each other either laterally or head on.  s, p, d…

Q: 1. A rate is equal to 0.0200 M/s. If [A] = 0.100 M and rate = k[A]¹, what is the new rate if the…

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.