Is cooling a nuclear reactor consider a chemical or a physical change?a) Physical b) Chemical c) Neither

Q: Assay of (carbon - 11) ?

A: Carbon-11 is a radioactive isotope of carbon. It decay by the emission of proton and it's decay to…

Q: Nuclear Equations

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Q: Write a balanced nuclear equation for the following: The nuclide uranium-238 undergoes alpha…

A: Alpha decay occurs in uranium- 238 nucleus that decays into thorium- 234 nucleus. Alpha particle has…

Q: The hall ife for the radioactive decay of carbon-14 to nitrogen-14 is 5.73- 10' years. Suppose…

A: Given-> Half life = 5.73 × 103year Initial amount = 1.000 mmole Amount of N-14 at final = 0.835…

Q: Approximately how old is a fossil with 12 g of 4C if it initially possessed 32 g of 4C?

A: Question 3 Radioactive decay and carbon dating question are solved by using first order kinetics…

Q: 8.2 °C to 34.5 °C? (The

A: Here mass in kg, so first converted mass kg to g  mass = 6.98 kg  [ 1kg = 10^3 g ]  mass = 6.98 •…

Q: In which units does the concentration of radon measured?

A: Radon is a radioactive colorless inert gas. It belongs to the 18th group in the periodic table with…

Q: is a naturally occurring radioactive gas that seeps up from the ground and is potentially toxic to…

A: Radioactive elements are the elements that emit atomic radiations and their nuclei are unstable.

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

A: Given, Number of moles of Methane = 2 mole  Energy released for the combustion of methane = 1780 KJ…

Q: Consider a block of wood having a volume of 125 cm³. If the clock of wood burns at a rate of 15…

A: Calculation of mass of woodblock: The volume and density of woodblock are given. By using this…

Q: Give an example of nuclear equation and one of a chemical equation. In what ways are two equations…

A: A chemical reaction involves the combination of two or more elements/compounds to furnish a new…

Q: Use nuclear symbols to write a balanced nuclear equation for the formation of actinium−227 through…

A: Formation of Actinium-227 through alpha decay.

Q: A piece of cobalt originally at 90.6°C was placed into a coffee cup calorimeter containing 200.0…

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Q: nuclear equations for the following processes.

A: The nuclear equation for the given process can be written as,

Q: 7. A piece of copper absorbs 5000 J of energy and undergoes a temperature change from 100 °C to 200…

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Q: The thermogram in the figure below shows the change in mass for a sample of calcium oxalate…

A: In thermal analysis,  weight loss of calcium oxalate monohydrate due to loss of water first then…

Q: Suppose UMKC Volker campus has twelve thousand students. In average car possession rate by these…

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Q: MCQ 25: Fireworks release energy in the form of A. heat B. light C. sound D. all of above

A: We know that,. Firework happen then three phenomena appear, 1)Heat 2)Light 3)Sound

Q: 9) How many joules are released when 450 grams of water are cooled from 4 x 107°C (the hottest…

A: Mass of water (m) = 450 g Specific heat capacity of water (s) = 4.18 J/goC Initial temperature of…

Q: 15. It is due to diffusion. A. spread of fragrance in a room B. spread of radioactive particles…

A: The intermixing of the particles of one substance into another on their own is known as diffusion.

Q: What is the final mass of the aluminum electrode?  what is the final mass of the silver electrode?

A: Note:- Whatever solution I m providing is correct but your answer option was not matched.

Q: QUESTION 11 How much energy, in J. is needed to met 1.762 grams of silver at 65 87°C?

A: Note: As per the guidelines, solution of 11th question has been explained below in detail. For the…

Q: nuclear equation

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Q: Does sunlight contain a chemical?

A: Sunlight is a form of energy.

Q: What Nuclear Fission and Nuclear Fussion? What the difference between these two?

A: The reactions  involving protons and neutrons of the reacting species are called nuclear reactions.…

Q: 14. The total volume of the Pacific Ocean is estimated to be 7.2 × 108 km3. A medium-sized atomic…

A: From the given volume of the Pacific Ocean, the mass can be calculated as follows:

Q: A 563.23 g sample of water and -19.94 Celsius is taken to final temperature of 52.41 Celsius how…

A: 1) Water mass is m=563.23 g 2) Initial temperature T1=-19.94°C 3) Final temperature T2=52.41°C 4)…

Q: In the cooling curve shown, the heat of fusion would be used to calculate the energy released in the…

A: Heat of fusion of a substance is defined as the quantity of heat necessary to change 1g of a solid…

Q: If the height or mass of an object is increased, its energy will increase. ----

A: Energy is defined as the ability to do work. There are two types of energy Kinetic energy and…

Q: How does the 1966 Fahrenheit 451 move portrayed censorship? Provide details and examples

A: Adaptation of the Ray Bradbury novel about future society that banned all books. Fahrenheit 451…

Q: Use the References to access important values if needed for this question. Complete the following…

A: Given  an equation  Y= -6x + 26

Q: Numerate the most important chemical hazards?

A: Chemical hazards can be defined as a substance that causes harmful effects on human health.

Q: A 71 gram block of lead releases 549J of energy. What was the change in temperature?

A: Given  Mass of lead = 71 g Energy (Q) = 549 J Standard value  Specific heat of lead = 0.129…

Q: e polonium-214 ndergo vest nossible coefficients.

A: In the nuclear reaction,  Mass number and atomic number is same in both sides

Q: nuclear equations

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Q: Which hydrogen isotope is radioactive?

A: Three isotopes of hydrogen are Protium(H11); deuterium(H12) and tritium(H13) Here tritium is radio…

Q: How to calculate speed of cathode ray when you know p.d.

A: Answer - Cathode rays - Cathode rays (also called an electron beam or an e-beam) are streams of…

Q: Compare nuclear energy to solar energy and fossil fuels in terms of safety and greenhouse gas…

A: Nuclear Energy - It is the energy derived from the fission and fusion of radioactive materials.…

Q: Calculate the mass equivalent of the energy released by the complete combustion of 4 mol of methane…

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Q: Suppose 4.57 g of C5H12 completely combusted. How many kJ of energy would be released? (207 kJ) е.

A: Given that, On combustion of 10g of C5H12 , 453 KJ of heat released.

Q: Ma'am/sir how do you do energy shells for science.

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: Radioactive decay is spontaneous. O True O False

A: Whether the given statement is true or false has to be given.

Q: (A) if both sentences are true, (B) if both sentences are false, (C) if the first sentence is true…

A: True false

Q: Why are food particle preferably packed in aluminum foil?

A: INTRODUCTION: Aluminium foil is a thin sheet of aluminium used to wrap food.