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Which quantity remains conserved in a nuclear reaction?

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Mireille Rempel

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Q: Which quantity remains conserved in a nuclear reaction?
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What happens to total amount of mass in chemical reaction?

The mass remains conserved... while it is in case of a nuclear reaction where the total mass changes... in chemical reaction there is no change in mass...


What is the quantity that remains conserved in all types of collision?

Total mechanical energy


What is conserved during nuclear disintegration?

Atomic mass is conserved. Atomic number is NOT typically conserved in nuclear reactions. For example, when U235 spits out an alpha particle, its number drops by two (loss of two protons), and the mass by four, resulting in Thorium 231. The total mass is conserved, because the mass of the emitted alpha particle is 4.When an element decays by beta particle emission, the atomic number goes up by one, but the mass remains essentially the same. In spontaneous fission a pair of atoms reform with a spray of free neutrons. These neutrons have a half life of almost 15 minutes. If they bombard sufficiently heavy neighboring nuclei, what occurs is known as a fission chain reaction.


How does a chemical equation show that matter is always conserved in a chemical reaction?

According to the Law of Conservation Of Mass,Matter is neither created nor destroyed.It means a chemical equation show that matter is always conserved in a chemical reaction.It is shown as number of atoms both sides of the reaction before and after remains the same.


What happens to the total mass of substances during a chemical reaction?

During a chemical change,chemical energy may be changed to other forms of energy.other forms of energy may also be changed to a chemical energy.


What is the quantity of matter in a unit volume is called?

A substance that cause or speeds up a chemical reaction while the substance itself remains unchanged


What is meant by supercritical and how does it relate to making a nuclear bomb?

A subcritical mass cannot sustain a nuclear chain reaction, it dies exponentiallyA critical mass can sustain a nuclear chain reaction, but it remains constant neither increasing nor decreasingA supercritical mass not only sustains a nuclear chain reaction but it increases exponentially until the mass explodesA nuclear fission bomb must become supercritical at some time in order to explode.


What happens to mass during a chemical change?

Mass is conserved. This means it remains constant.


What remains when water is evaporated after a neutralization reaction?

If the water is evaporated after a neutralization reaction, what remains?


Does water weight decrease after freezing?

No. As long as you don't take any of it away, the same quantity of mass is still there, and the same quantity of mass always has the same weight, regardless of what physical state it happens to be in. No, the weight of the water remains unchanged. Mass is conserved. It does, however, become less dense (takes up a little bit more volume).


Explain the law of conservation of energy says that energy is neither created nor destroyed?

There is not much more to it. There is a quantity, called "energy", that is conserved - that is, it remains constant in a closed system. You can not create energy out of nothing, but you can convert one type of energy into another type of energy.


How much catalyst remains at the end of a catalysed reaction?

All the catalyst remains as it is not incorporated into the reaction products, it just speeds up the reaction time.