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Mandarinka [93]
3 years ago
11

Which best explains why some radioisotopes decay in a decay series? Radioactive materials will always be radioactive. Multiple d

ecays are always required to achieve stability. Some unstable materials decay radioactively into other unstable materials. Unstable materials have varying half-lives.
Chemistry
1 answer:
Yuri [45]3 years ago
7 0
<span>Which best explains why some radioisotopes decay in a decay series?
</span><span>
The correct answer is:
Some unstable materials decay radioactively into other unstable materials.

</span>Radioactive decay a the spontaneous process through which an unstable atomic nucleus breaks into smaller, more stable fragments. <span>It's basically a matter of thermodynamics. Every atom seeks to be as stable as possible. In the case of radioactive decay, instability occurs when there is an imbalance in the number of </span>protons<span> and </span>neutrons<span> in the atomic nucleus.</span>
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A change resulting in one or more new substances being formed is a?
dem82 [27]

Answer:

C. Chemical change

Explanation:

A physical change is where something is changed but it doesnt affect the build up of the chemical. For example, if you broke sticks and threw them on the ground, that would be a physical change because the change is happening to the physical being of the object and not its chemical buildup. However, if you lit those sticks on fire, that would be considered a chemical change because you end up with two substances, ash and the remnants of the stick. A nuclear reaction would result in something blowing up so its not that. And a physical property is like what it looks like or how it smells. Hope I helped you!

3 0
2 years ago
Jane is sliding down a slide. What kind of motion is she demonstrating?
svp [43]
It is translational motion. i know because i found it on this site. its verified too, have a nice day
5 0
3 years ago
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Magma that is rich in feldspar and silica is called?​
weeeeeb [17]

Answer:

<h3>magma that is rich in feldspar and silica is called STRATOVOLCANO.</h3>
3 0
3 years ago
When N2(g) reacts with H2(g) to form NH3(g), 92.2 kJ of energy are evolved for each mole of N2(g) that reacts. Write a balanced
Naddika [18.5K]

Answer:

N₂ + 3H₂ → 2NH₃   ΔH = - 92.2KJ

Explanation:

Let's write out the chemical equation between Nitrogen and Hydrogen to Form Ammonia.

Nitrogen + Hydrogen = Ammonia

N₂ + H₂ → NH₃

A Thermochemical Equation is a balanced stoichiometric chemical equation that includes the enthalpy change, ΔH.

The balanced stoichiometric chemical equation is given as;

N₂ + 3H₂ → 2NH₃

92.2 kJ of energy are evolved for each mole of N2(g) that reacts. And from the equation, 1 mole of N2 reacts.

The enthalpy change, ΔH = - 92.2KJ. The negative sign is because heat is being evolved.

The balanced thermochemical equation;

N₂ + 3H₂ → 2NH₃   ΔH = - 92.2KJ

6 0
3 years ago
What is the approximate pressure of a storage cylinder of recovered R-404A that does not contain any non-condensable impurities
gregori [183]

Answer:

288 psig

Explanation:

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3 years ago
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