Which of the following statements best explains reversible reactions? * Chemical reactions that occur where the reactants can react to form products only. Nuclear reactions that occur where the products can react to form products only. Chemical reactions that occur where the products can react to form the original reactants. Nuclear reactions that occur where the products can react to form the original reactants.

Q: (B) The Carbon-14 activity of an artifact in a burial site was found to be 8.6 counts per minute per…

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Q: The half-life of the radioactive isotope astatine-218 is 2.00 seconds. How long will it take for the…

A: all radioactive reactions are first order.  Here first calculate the rate constant with the help of…

Q: Uranium-238 undergoes a radioactive decay chain before it reaches nuclear stability, forming the…

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Q: U-238 decays with the half-life of 4.47 billion years. Calculate the % of a sample left after 13.4B…

A: Given : Half life = 4.47 billion years  Time = 13.4 billion years.

Q: What particle completes this reaction

A: Radioactive elements emit continuous radiation and undergo radioactive decay. There is harmful…

Q: The half-life of the radioactive isotope uranium-234 is 2.47 × 10° years. How long will it take for…

A: We have given that  Half life of Uranium-234 = t1/2 = 2.47×105 years [N]0 = 72.4 μg  [N]t = 9.05 μg…

Q: Radium (Ra226, t1/2 = 1622 years) decays into radon (Rn222, t1/2 = 3.82 days), which is a monatomic…

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Q: Calculate the rate constant for the beta decay of the carbon-14 isotope and calculate the half-life…

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Q: OSulfur-35 has a rate constant of 0.00795 day1. a) Determine the rate law b) What is the half-life…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only..…

Q: Researchers have attempted to combine the nuclei of multiple atoms to generate large amounts of…

A: For the 1st question  Answer - Option showing Fusion  is correct

Q: The substance decomposed at a rate proportional to the amount present. What is the half-life of the…

A: IMPORTANT POINTS: As rate of reaction is proportional to amount of products ,which can be related…

Q: If 10% of a radioactive substance decomposes in 200 years, what percentage will be present at the…

A: Given is the amount decomposed after 200 years and we have to find after 1000 and 2000 years.

Q: Carbon-11, used in medical imaging, has a half-life of 20.4 min. The carbon-11 nuclides are formed,…

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Q: Calculate the mass equivalent of the energy released by the complete combustion of 2 mol of methane…

A: Given that : Number of moles of methane used = 2 moles Energy released on combustion of 2 moles of…

Q: The fire provided the initial activation energy to allow the food sample to combust. Where did the…

A: Activation energy is the minimum amount of energy needed to activate or energize molecules or atoms…

Q: Complete the following equation:   131 I53  →   β + _________

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Q: Strontium-90 is one of the products of the fission of uranium-235. This strontium isotope is…

A: Given-> Half life (t1/2) = 28.1 year  Initial amount = 4.00 gm Final amount = 0.100 gm

Q: Another form of radiometric dating is potassium-argon dating, which tracks the ratio of Ar-40 to…

A: Any reaction following "first-order reaction", that reactions rate always relies over single…

Q: If we start with 2.000 g of strontium-90,  1.906 g  will remain after  2.00 years. (a)   What is…

A: We know that,  →Radioactivity phenomena follow first owen kineticsso, Rate=K A1 K→Rate constant By…

Q: Strontium-90 is one of the products of the fission of uranium-235. This strontium isotope is…

A: Given : Initial amount of strontium isotope = 1.00 g Final amount of strontium isotope = 0.200 g And…

Q: .Strontium-90 is one of the products of the fission of uranium-235. This strontium isotope is…

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Q: half-life

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Q: Nuclear fusion power stations will produce radioactive waste. This waste will have a much shorter…

A: Nuclear fission is the breaking down of heavy, unstable nuclei into two or more lighter nuclei while…

Q: The half-life of the radioactive isotope magnesium-20 is 0.600 seconds. How long will it take for…

A: Half-life is the time required for a quantity to be reduced to half of its original value. The…

Q: The half-life of plutonium-239 is 24,100 years. How long will it take for a 100 g sample of…

A: Given,  Half life, t1/2 = 24100 years Initial amount = 100 g Reduced amount = 25 g Formula Used…

Q: lodine-131 is a radionuclide that is frequently used in nuclear medicine. Among other things, it is…

A: Chemical kinetics is the study of the reaction that how fast or slow a reaction is taking place. The…

Q: The half life for the radioactive decay of carbon-14 to nitrogen-14 is 5.73 × 10³ Suppose nuclear…

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Q: If the amount of radioactive sodium 24, used for studies of electrolytes within the body, the sample…

A: Given data: Radio active sodium -24 used in the studies of electrolytes within the body. Initial…

Q: If you start with 150,000 atoms of carbon-14 that goes through 4 half-lives, how many atoms will…

A: Half life is defined as the time required by the substance to decompose to half of its initial…

Q: Part B - How many milligrams of an initial 54 mg of calcium-47 remain after 36 days ? Part C - How…

A: Since, half-life of Ca-47 = 4.7 days  then,

Q: lodine-131 is a radionuclide that is frequently used in nuclear medicine. Among other things, it is…

A: Sample mass of Iodine - 131 initially = 0.16 gram Half life of iodine-131 = 8 days We know that…

Q: plutonium 239 produced in breeder reactors has a half-life of 24100 years how long will it take for…

A: Answer: Time for 10% decay of Pu-239 is 3665.175 years

Q: Choose all of the statements about nuclear reactions that are false. Radioactive decay is a first…

A: ◾ Radioactive decay is first order kinetics . This statement is correct. Decay rate is directly…

Q: After 42 years, what mass remains of a 100.0 g sample of a radioactive isotope with a half-life of…

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Q: Plutonium-239 (produced in breeder reactors has a half-life of 24,100 years. How long will it take…

A:

Q: In order for a reaction to occur, all of the following must be true except: O the reacting particles…

A: Applying concept of activation theory for chemical reaction.

Q: erage rate of disappearance of H2O2 over the time period from t-0s to t-61 sis found to be 507tvgwe…

A: Rate of reaction is change in concentration of products and reactants in given time interval. From…

Q: Suppose an archaeologist has recently unearthed a set of short-faced bear bone fragments and…

A: Given: Bone fragment have lost 87.1 % of their original carbon-14 content. half-life of C-14 =5730…

Q: Jania.20 Chapter 3 3.100 When 1.0 9 of gasoline burns, it releases gasoline 0.749/ML SI (3.4.3.6) A)…

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Q: Use the References to access important values if needed for this question. The half-life of the…

A: Introduction: Radioactive isotopes can be defined as atoms that contains an unstable combination of…

Q: Strontium-90 is one of the products of the fission of uranium-235. This strontium isotope is…

A:

Q: Iodine-131 is a radionuclide that is frequently used in nuclear medicine. Among other things, it is…

A: Nuclear chemistry is a branch of chemistry which involved the study of reactions in the nucleus. The…

Q: Uranium-238 decays to form thorium-234 with a half-life of 4.5x109 years. What is the decay constant…

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Q: For the formation of silver-107 through electron capture, the silver is placed in the reactant side…

A: For the formation of silver-107 through electron capture, the silver is placed in the reactant side…

Q: half-life of 44,495 days. How many grams of iron-59 decompose after one month (assume it is in…

A: We will use first order kinetics formula to get final mass of compound

Q: . Americium-241 is a radioactive isotope used in household smoke detectors. It decays by alpha…

A: Americium- 241 is a isotopes of americium and half life is 432.3 years.

Q: What is the half-life

A: Half life of a reaction is the time taken to reduce half the initial concentration of the…

Q: What is the half- life of a radioisotope if it decays to 12.5% of its radioactivity in 12 years?

A: Let the initial concentration of the radioactive substance be A. The concentration of the substance…

Q: left

A: carbon dating, the age can be determined by measuring the

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.