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I am Lyosha [343]
3 years ago
12

Why does it take so much heat and pressure to create helium and other elements?

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

Answer:

To break down the nucleus of an atom

Explanation:

Remember to change from one element to another, is necessary to add protons, neutrons and electrons,in most of the cases.

The take an electron from an atom you need certain energy, but they are in the outside part of the atom so is not as much energy as the one is necessary to take one neutron or proton from the inside part of an atom.

In this way, is a must to have a combination of pressure and heat to destabilize an atom and take some of this subatomic particles.

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A certain sample of a gas has a volume of 20 L at 0 oC and 1 atm. A plot of the experimental data of its volume against the Cels
creativ13 [48]

Answer:

The absolute zero temperature T = - 269.91° C

Explanation:

From the given information:

The plot of the volume of the experimental data against the celsius temperature can be expressed mathematically as:

V = mT + c

V = 0.0741 × T+c --- (1)

where;

m, which is the straight line of the slope = 0.0741

replacing the value of V to be = 20 L, T= 0.

Then:

20 = 0.0741 × 0 + c

20 = c

From equation (1), replacing the value of c with 20, we have:

V = 0.0741 × T+20

SO, to determine absolute zero temperature: we have the volume to be zero at absolute zero temperature, Thus:

0 = 0.0741 × T+20

0.0741 T + 20  = 0

0.0741 T = - 20

\mathbf{T =  \dfrac{-20}{0.0741}}

T = - 269.91° C

6 0
3 years ago
In 1786 Luigi Galvani developed the theory of: a Static electricity b Reciprocal electricity c Animal electricity d battery elec
Ostrovityanka [42]
Static electricity jrbfbfjfbfbbfbfjfngbffjfbfbffjnfnfnf
4 0
3 years ago
Chlorine has 17 total electrons with electron configuration 1s^2 2s^2 2p^6 3s^2 3p^5. What are the first two quantum numbers for
nasty-shy [4]

Answer:

Chlorine has 17 total electrons with electron configuration 1s^2 2s^2 2p^6 3s^2 3p^5.

What are the first two quantum numbers for the six electrons in the 2p subshell?

Explanation:

The principal quantum number represents the shell number in which the electron is present.

It is represented with "n".

The next quantum number is the azimuthal quantum number.

It represents the shape of the orbital.

It has values from 0 to (n-1).

Its value depends on the principal quantum number.

Chlorine has 17 total electrons with electron configuration 1s^2 2s^2 2p^6 3s^2 3p^5.

For the six elecetrons in 2p subshell:

The first two quantum number values are the same and their values are:

n=2 , l=1.

7 0
3 years ago
Which of these is NOT a mixture?
TEA [102]
The correct answer would b C
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3 years ago
Propylene oxide is used to make many products, including plastics such as polyurethane. One method for synthesizing it involves
Vadim26 [7]

Propene has three electron groups surrounding the core carbon atom, as seen in the Lewis dot structure of the compound.

<h3>What is  Lewis dot structure?</h3>

A Lewis Structure is a greatly condensed illustration of a molecule's valence shell electrons. It is used to display how the electrons are positioned around particular molecules' atoms. When two atoms are bonded together, electrons are depicted as "dots" or as a line.

Lewis structures, often referred to as Lewis dot formulas, electron dot structures, or Lewis electron dot structures, are diagrams that depict the interactions between the atoms in a molecule as well as any lone pairs of electrons that may be present.

To learn more about Lewis dot structure from the given link:

brainly.com/question/20300458

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7 0
2 years ago
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