If 10% of a radioactive substance decomposes in 200 years, what percentage will be present at the end of 1000 years? 2000 years? What is the half-life of the substance?

Q: Write the half-reaction that occurs at the anode during the electrolysis of NaCl. Include physical…

A: Given,  Electrolysis of NaCl

Q: Write the letter (case sensitive response) corresponding to the word/statement /structure that best…

A: Answer : G) Heck coupling reaction. The coupling reaction of an alkene with Aryl bromide (ArBr) or…

Q: A battery harnesses the power of a spontaneous electrochemical reaction by __________ the two half…

A: There are four options for the question ....  A battery harnesses the power of a spontaneous…

Q: 1. Briefly describe or define and give an example of a. a weak electrolyte b. an amphiprotic solvent…

A: when it is dissolved in polar solvents such as water . These types of substances are called…

Q: The standard reaction free energy AG = -910. kJ for this reaction: 6 C(s) + 6H₂(g) + 3O₂(g)…

A: Recall the given reaction,                              6 C s  +  6 H2 g  +  3 O2 g  →  C6H12O6 s…

Q: Here's the 3rd graph. I hope you will did the same way of answering just like what you did in the…

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Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into…

A:

Q: A galvanic cell is powered by the following redox reaction: MnO₂ (s) + 4H+ (aq) + 2 Br (aq) Mn(aq) +…

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Q: Plz answer 1st 3 parts only in 20 mints it's very urgent

A: In nuclear reactions atomic nucleus taking part in the reaction this is also called as nuclear…

Q: Sample 15 ppm calcium 2 10 ppm calcium and 10ppm phosphate 3 5ppm Ca, 10ppm phosphate and 1%…

A: A question based on absorption that is to be accomplished.

Q: 50.0 mL of a 3.00 M HCl solution is diluted to a total volume of 217.4 mL.  What is the…

A:

Q: Vanillin, NaI/NaOCL, ethanol/H2O, bleach are reacted in an electrophilic aromatic substitution…

A: NaOCl (Sodium hypochlorite) oxidises the NaI to gives I2 molecule, a source of iodonium ion. In…

Q: ropose an efficient synthesis for the following transformation: OH he transformation above can be…

A: In this question, we have to give the necessary reagents that will be required for the…

Q: What is the major product of each of the following reactions?

A: The organic reaction is given and we have find out the major product of these reactions.

Q: During the electrolysis of water in acidic solution, which process occurs at the anode? 4H* (aq) +…

A: Since, In electrolysis reaction, oxidation reaction takes place at anode. So,

Q: Question 26 1) Which substrate would react most rapidly in an SN2 reaction? O BrCH2CH2CH=CHCH3 O…

A: Nucleophilic substitution biomolecular reaction (SN2): The bimolecular nucleophilic substitution…

Q: 375.m2 Solution of Nace was electrolyzed for 3.10 min. if the PH the pH at the find Solution was…

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Q: If you have 8 atoms of nitrogen on the reactant side of the equation, then how many atoms of…

A: Here we have to explain the Law of conservation of atoms in chemical reaction.

Q: What is the major product generate when p-t-butyl aniline undergoes the following different…

A:

Q: Question 3: Identify the structure for each of the following cases: 1. Structure with the general…

A: Two questions based on IR spectroscopy that is to be accomplished.

Q: Calculate the solubility at 25 °C of PbCrO4 in pure water and in a 0.0080M Na₂ CrO4 solution. You'll…

A: #(1):  Calculation for solubility in pure water: Ksp of PbCrO4 = 2.8*10-13

Q: solution would be required to neutralize

A: According to the question,  The neutralize reaction is given below – HCl(aq) + NaOH(aq) → NaCl(aq) +…

Q: Determine the pH of a buffer solution by constructing an ICE table, writing the equilibrium constant…

A: Buffer solution consists of weak acid and its salt or weak base and its salt. In this given problem…

Q: 6. Using Newman projections, draw each of the following molecules in its represented conformation…

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Q: (a) Mass of Magnesium metal used (b) Volume of H₂ gas collected (c) Temperature of H₂ gas collected…

A: We are given the volume, temperature and pressure data for the formation of H2(g) and we have to…

Q: Which of the following is always true for any spontaneous reaction? A. AH> 0 B. AH0 D. AG <0

A: Since, Spontaneous reaction means reaction favoured without any external disturbance. Thus,

Q: Identify the important absorption peaks in the following IR spectra and describe the appearance of…

A: IR spectroscopy stands for Infra-red spectroscopy. It is represented as  percentage of transmittance…

Q: 43. H Br "X :S: || 1. HNCNH, 2. NaOH, H₂O

A: Thiourea contains nucleophilic centre S which reacts with electrophilic bromine containing carbon…

Q: The following transformation can be accomplished by using. to make the product. 1) Br2, FeBr3 2)…

A: -&gt; First of all there occur friedel craft acylation reaction. Then there occur reduction .

Q: Question 27 Reaction below gave 3 isomers (o, p and m) of di substituted products in a ratio shown.…

A: Given compound is called an anisole. This reaction is nitration or electrophilic aromatic…

Q: Propose an efficient synthesis for the following transformation: The transformation above can be…

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Q: For the reaction 2N₂ (9) + O₂(g) → 2N₂O(g) AG=214 kJ and AS = -148.5 J/K at 334 K and 1 atm. This…

A: For the first reaction, we have to find whether the reaction is reactant or product favored and…

Q: What is the relationship between Ha and H, in the following compound? a Select an answer and submit.…

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Q: The following reaction series is completed: (1) 1-butyne is reacted with LDA. (2) The organic…

A: Given is organic reaction. LDA is stands for lithium diisopropylamide. It is base and main function…

Q: What is the product of the following reaction? CH₂CH3 H₂C O H₂C N. "H CH₂CH3 -NO CH₂CH3 NaNO₂ HCI,…

A: Sodium nitrate react with hcl to give nitrous acid NaNO2 + HCl = HNO2 + NaCl

Q: Part A Find the pH of a 0.014 M solution of HCHO₂. (The value of K, for HCHO₂ is 1.8 x 10-4.)…

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Q: Using the acetoacetic ester synthesis, to produce 5-methyl-2-heptanone, the alkyl halide that should…

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Q: Nicotinamide is a water-soluble nonelectrolyte vitamin important in metabolism. Addition of 3.88 g…

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Q: 200 g of phosphoric acid (H3PO4) is dissolved into 10 L of water. pKa1=1.3, pKa2=7.21, pKa3=12.32.…

A: Phosphoric acid , H3PO4(aq) is a triprotic acid that can donate up to 3 protons.  The Ka values are:…

Q: Complete the statement below by writing the number (from the table below) that represents the set of…

A: The starting material is toluene which is first converted to an intermediate, Z before being…

Q: Please solve the following problem and show the answer with the correct amount of significant…

A:

Q: What is the curved arrow mechanism of p-t-butyl phenol treated with acetic anhydride? Include all…

A: We have to write curved arrow mechanism of the reaction between p-t-butyl phenol and  acetic…

Q: Draw the structures of the following carbonyl compounds: a. 4-hydroxypentanoic acid b. ethyl…

A: Answer is below:

Q: Which of the alcohols will form an alkyl halide fastest if treated with concentrated HCl with zinc…

A: A solution of anhydrous zinc chloride in concentrated hydrochloric acid is known as Lucas reagent.…

Q: Draw the enantiomer of the structure below. Н. HO III H H с=0 H -OH OH -ОН CH₂OH

A: Enantiomers are stereoisomers and that are optically active compounds.

Q: (d) Substituent X was varied between electron donating and electron withdrawing groups in the…

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Q: Hw! -bromotoluene + NaNH, NM, () ® CH₂ NH₂ o-toluldine direct-substitution product CH3 -NH₂…

A: Initially NaNH2 will react with liq NH3 to form NH2-  NaNH2 + NH3(liq) →NH2-

Q: collect Data: ( ● Use the simulation to determine the final temperature for each set-up in the table…

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Q: I C E Determine the pH of a 0.095 mol/L HIO4 solution if the K₁₂ = 1.29 x 10-² + H₂O (l) HIO4 (aq)…

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Q: A certain catalyzed reaction is known to have an activation energy E=58.0 kJ/mol. Furthermore, the…

A: Here certain catalyzed reaction have activation energy Ea= 58kj/mol .The rate of reaction measured…

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.