The diagram below shows what happens to an atom of uranium-235 when bombarded by a neutron. Which isotope is represented by X in the diagram?

Answers

Answer 1

Answer:

X represents barium - 141 nucleus.

Written as: (141, 56) Ba

Explanation:

In nuclear fission reaction, due to the fact that the process produces more neutrons, a nuclear chain reaction can possibly occurr. Now, a chain reaction is a one whereby the material that begins the reaction will also be one of the products and it can start another reaction.

Now, for the nuclear chain reaction for the fission of uranium-235, its nucleus absorbs a neutron after which it splits into a krypton - 92 nucleus and a barium - 141 nucleus. Thereafter it releases three more neutrons.

Thus, X is the image represents barium - 141 nucleus.

(141,56) Ba

Related Questions

calculate the number of moles
for 66 gram of CO2

Answers

Answer:

1.55

Explanation:

The number of moles = given mass / molar mass

The given mass is 66 g and the molar mass is 44 g/molar mass

Substituting the values in, we get that:

the number of moles = 66/44

the number of moles = 1.55

hope this helped!

Everyone has a laughing place, The trouble is most people don't take the time to look for it.
true

or

false

Answers

Answer:

True

Explanation:

Answer:

True

Explanation:

Most people stick to what they know and don't look for a laughing place.

Negative ions have ______ (More or Less) protons than electrons.

Answers

Answer:

Less

Explanation: I took the test.

Answer: negative ions have less protons than electrons.

Explanation:

Atoms that gain
an electrons
have a _____
Charge?

Answers

negative charge some extra characters

Answer:

positive

Explanation:

PLEASE HELP!!!!

What is the molar mass of 18.12 g of gas
exerting a pressure of 3.05 atm on the
walls of a 5.85 L container at 280 K?

Answers

Answer:

23.3 g/mol

Explanation:

The molar mass of 18.12 g of gas exerts a pressure of 3.05 atm on the walls of a 5.85 L container at 280 K is 23.3 g/mole.

What is the molar mass?

Molar mass is the concentration of a substance that is present in a specific liquid. It is also called the concentration of a substance.

The molar mass can be calculated by the formula of an ideal gas:

PV = nRT

P is the pressure

V is the volume

n is the number of moles

R is the constant of gas.

T is the temperature.

The given amounts are the molar mass of 18.12 g.

The pressure is 3.05 atm.

The volume is 5.85 L

The temperature is 280 K

Putting the value in the equation

n = PV/RT = (3.05) (5.85) / (0.0821) (280) = 0.777 moles of gas

Molar mass = 18.12 g/0.777 moles = 23.3 g/mole

Thus, the Molar mass is 23.3 g/mole.

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This is Q7 and I need help, can someone help.

Answers

Answer:

Answer to A. helium, neon, argon, krypton, xenon, and radon, B. Elemental hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), and chlorine (Cl, element 17) are all gases at room temperature, and are found as diatomic molecules (H2, N2, O2, F2, Cl2). C. Elements Compounds

Ar (argon) HBr (hydrogen bromide) C 3H 8 (propane)

Kr (krypton) HI (hydrogen iodide) C 4H 10 (butane)

Xe (xenon) HCN (hydrogen cyanide)* CO (carbon monoxide)

Rn (radon) H 2S (hydrogen sulfide) CO 2 (carbon dioxide)

Explanation:

4) How does an atom have a charge of -3?

Answers

Answer:

When the electrons hit the atoms in the chamber, they cause some of the electrons in the atoms to be stripped or knocked away. ... When one or more electrons is knocked off of an atom, it becomes positively charged. It is now an positive ion. A negative ion can be made by adding an electron to an atom.

Explanation:

Which of the following accurately describes metallic bonding?
A. electrons sea of delocalized
B. electrons are shared between atoms
C. electrons are transferred between atoms
D. electrons are released as beta particles

The answer is not C that's all I know. Please answer with explanation if you know.

Answers

Answer:

Explanation:

1-Are natural resources renewable or nonrenewable?

2-what is the only way to stop the depletion of natural resources?

3-What is an example of poor soil management?

Answers

Answer:

1- Natural sources are renewable with time

2- To refrain from over usage of products on unnecessary things

3- An example of poor soil management is using the soil with the most minerals to put houses on instead of farming with

Which of the following describes a species with the greatest fitness?
The species that can reproduce beter than the others
The species that is faster than the others
The species that is stronger than the others
The species that is larger than the others

Answers

Answer:

C is it!

Explanation:

PLS HELP
True or False: Water molecules, as a liquid, are very spread apart because of their attractions for one another. *

Answers

false, if you compare how spread apart the molecules in liquids are compared to gases and solids, liquids would be in the middle. They aren’t very spread apart, per say, but they aren’t compact since water is not very dense.

50 points:

Several thousand years ago, people sought after the truth about the nature of matter by

Answers

Answer:

Is this a true or false?

Explanation:

is this a t or f question?

What is the function of enzymes in living organisms?

Answers

Answer:

Explanation:

Janet is sliding a box across the floor what does she need to know to calculate the force on a box?

Answers

Answer:

She needs to know the Mass and acceleration

Janet needs to know the mass of the box and acceleration .

What is force?

Force is defined as a cause which is capable of changing the motion of an object. It can cause an object which has mass to change it's velocity. It is also simply a push or a pull . It has both magnitude as well as direction.Hence, it is a vector quantity.

It has SI units of Newton and is represented by'F'.Newton's second law states that force which acts on an object is equal to momentum which changes with time. If mass of object is constant, acceleration is directly proportional to net force acting on an object.

The concepts which related to force are thrust and torque .Thrust increases the velocity of an object and torque produces change in rotational speed of an object.

Learn more about force ,here:

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n which phase(s) of matter are the atoms closely packed but still able to slide past each other?

gas
liquid
solid and gas
liquid and solid

Answers

Answer:

I belive its liquid if I'm right because liquids are packed together when they take shape but they are still able to move.....brainliest???

Answer:

Liquid

Explanation:

Please don't jugde me if I got it wrong

Some things that can be made from coal are...
A. All of the above
B. Tar
C. Generating power
D. Plastics
E. Fertilizer

Answers

Answer:A

Explanation:just casuse

10. A gas sample that has a mass of 6g occupies 400 mL at 504°C and a pressure of 600 mm Hg. Calculate the gas’s density at STP.

Answers

Answer:

51 g/mol

Explanation:

Whenever you see molar masses in gas law questions, more often than not density will be involved. This question is no different. To solve this, however, we will first need to play with the combined ideal gas equation PV=nRT to make it work for density and molar mass. The derivation is simple but for the sake of time and space, I will skip it. Hence, just take my word for it that you will end up with the equation:

The half-life of carbon-14 is about ____________ years.

Fill in the blank.

Answers

The half-life of carbon-14 is about 5730 years

Answer:

5730 years

Explanation: for more on radiocarbon dating.) and hence explain why the amount of carbon-14 in the sample decays by half over any period of 5730 years.

How many electrons does each atom have? What group is each in?

Answers

In an atom, the electron's spin around the center, also called the nucleus. The electrons like to be in separate shells/orbitals. Shell number one can only hold 2 electrons, shell two can hold 8, and for the first eighteen elements shell, three can hold a maximum of eight electrons. ( This is the answer to both questions!)

Jeremiah pushed Anthony with a net force of 12 N. Anthony accelerated across the hall at 0.2 m/s2. What was Anthony’s mass?

Answers

Answer:

Explanation:

Answer: 60 kilograms

Work Shown:

Force = Mass*Acceleration

F = ma

12 = m*0.2

12/0.2 = m

60 = m

m = 60 kilograms

Neutral atoms have the same number of____
What’s the missing word?

Answers

Answer:

electrons and protons

Explanation:

What has modern media shown you about atoms

Answers

Atoms like in chemistry class?

What do you. Mean by that

.Which statement about transition elements is correct?A Their soluble salts usually form coloured aqueous solutions. B They are all in the same group of the Periodic Table. C They are non-metals with high melting points. D They can be mixed together to form compounds

Answers

Answer:

A Their soluble salts usually form coloured aqueous solutions

I need help with this one please it’s science

Answers

Answer: A change in appearance. (Please say thanks!)

Explanation:

The biggest sign of a chemical change is change in appearance.

Answer:

Explanation:

training doctors to recognize child abuse and explain how you could apply it to teaching. Write a short paragraph, using complete sentences with proper grammar, spelling, and punctuation.

Answers

Answer: E

Explanation:

Lucy learns that the lymphatic system is part of the circulatory system. She wants to learn more about it and reads more carefully about the part it plays in circulation. What is the role of lymph nodes in the lymphatic system?
A. They are found in the plasma and help fight off bacteria and other harmful microorganisms.
B. They filter plasma and return it back to the bloodstream.
C. They filter lymph by trapping harmful bacteria and other microorganisms in the fluid.
D. They transport lymph to where it is needed in the body.

Answers

Answer: C because I’m smart

Explanation:

The Lymph nodes have been consisted of the lymph fluid that has been able to entrap the bacteria and kill them. Thus, option C is correct.

Lymph nodes have been defined as the small swellings in the lymphatic system that has been consisting of the various parts of the body.

The lymph nodes have consisted in the neck, armpit, chest and abdominal region of the body and have been able to perform the function as the first layer of defense.

The Lymph nodes have been consisted of the lymph fluid that has been able to entrap the bacteria and kill them. Thus, option C is correct.

For more information about the lymph nodes, refer to the link:

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Who knows the answer to this please help

Answers

The number 4 try is because

Which is the last section of the digestive system?

small intestine

liver

large intestine

rectum

Answers

The last section of the digestive system is the rectum.

What is digestive system?

Digestive system is the system of the body that comprises of organs,enzymes that help to break down large molecules of food into smaller mole yles which is easily absorbed by the body.

Therefore, The last section of the digestive system is the rectum.

Learn more about digestive system below.

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Answer:

r3ctum

Explanation:

for people on edge.

How do the products of chemical reactions compare to their reactants?

Question 5 options:

The products often have completely different properties than the reactants.

The products usually weigh more than the reactants.

The products usually have more atoms than the reactants.

The products are usually more toxic than the reactants.

Answers

Answer: The products usually weigh more than the reactants.

Explanation:

Answer:

Explanation:

i just took the k12 test

1.) What is the molecular weight of the ketone shown below?

2.)Dry ice sublimes at −78.5 oC at a pressure of 1 atm. At room temperature and 1 atm pressure, what is happening to the dry ice molecules on a molecular level as sublimation occurs?

3.)For the pairs of molecules given below, list the intermolecular forces in each molecule. Also, give the types of electrostatic interactions that could occur between each pair of molecules

cyclohexane and CH2Cl2

CH3CH2OCH2CH3 and CH3CN

Answers

Answer:

See explanation

Explanation:

1. The Ketone was not sown in the question but i can give you a general idea of how to calculate its molecular weight. A ketone has a general molecular formula of CnH₂nO.

The molecular weight is calculated knowing that the relative atomic mass of carbon is 12, that of hydrogen is 1 while that of oxygen is 16.

Hence from the general molecular formula, the molecular weight of any ketone is calculated from; n(12) + 2n(1) + 16. Where n represents the number of atoms of each element in the ketone.

2. Sublimation of dry ice occurs when the molecules in dry ice absorb sufficient energy in the form of heat such that they now have enough energy for some molecules to overcome the inter molecular forces acting in the solid crystal and transform directly into the vapor phase. This process is endothermic.

cyclohexane and CH2Cl2 molecules are held together by dispersion forces.

CH3CH2OCH2CH3 and CH3CN are polar molecules held together by dipole-dipole forces.

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