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IceJOKER [234]
3 years ago
15

Which factors can influence the length of time it takes for a half-life to occur?

Chemistry
1 answer:
vovikov84 [41]3 years ago
4 0

Answer:

the radioactive half-life of an atom can depend on how it is bonded to other atoms. by changing the neighboring atoms that are bonded to a radioactive isotope, we can change its half-life.

Explanation:

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3 years ago
The purpose of cracking in the production of ethene is to
faltersainse [42]

The purpose of cracking in the production of ethene is to convert large molecules into small molecules.

Ethene can be produced from the thermal cracking of ethane and propene.

In thermal cracking, high temperature of about 750-850°C and pressure of up to about 70 atm is used to break carbon-carbon bonds. Free radicals are formed in the process.

More about petroleum refining processes:

Petroleum refinery can be classified into two broad categories, namely the main refining processes and conversion processes. Main refining processes includes distillation, absorption and adsorption, while conversion processes involves thermal cracking, catalytic cracking and hydrocracking.

As the name implies, cracking is generally the <u>breaking up</u> of larger molecules into smaller, more useful molecules, such as those with 5 to 12 carbons.

To better comprehend cracking processes, we can use the analogy of dropping a ceramic mug.

When this ceramic mug is dropped, it breaks into smaller ceramic pieces. This represents smaller molecules being formed from a larger molecule. The force used to break them into smaller molecules would differ in the various types of cracking processes. For example, thermal cracking mainly uses heat while catalytic cracking mainly uses a zeolite catalyst.

Note that for these cracking processes to occur, there are other conditions involved.

Additional:

To learn more about cracking, do check out the following!

  • brainly.com/question/13565152
7 0
2 years ago
A balloon under 14.7 atm of pressure at 273K gets left in a car in Florida and the temperature increases to 303K. What is the ne
Firdavs [7]

Answer:

The new pressure in the balloon is 16.3 atm

Explanation:

Gay-Lussac's law establishes the relationship between the temperature and the pressure of a gas when the volume is constant.

This law establishes that pressure and temperature are directly proportional quantities, that is to say that if the temperature increases the pressure increases and if the temperature decreases the pressure decreases.

Mathematically, Gay-Lussac's law states that, when a gas undergoes a constant volume transformation, the quotient of the pressure exerted by the gas temperature remains constant:

\frac{P}{T}=k

When you want to study two different states, an initial one and a final one, of a gas, you can use the expression:

\frac{P1}{T1}=\frac{P2}{T2}

In this case:

  • P1= 14.7 atm
  • T1= 273 K
  • P2= ?
  • T2= 303 K

Replacing:

\frac{14.7 atm}{273 K}=\frac{P2}{303 K}

Solving:

P2=303K*\frac{14.7 atm}{273 K}

P2= 16.3 atm

<u><em>The new pressure in the balloon is 16.3 atm</em></u>

4 0
3 years ago
i am a main group or representative element. i am located in the second period. i am a metalloid. who am i
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Answer:

the answer is tantalum!

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The graph represents the sales data for a particular product. In which week were 8 units sold?
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Is there a graph presented?

I need to see it in order to answer.

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