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STALIN [3.7K]
3 years ago
11

Does anyone understand this question?

Chemistry
2 answers:
tino4ka555 [31]3 years ago
8 0
For this question you need to find out all of the stages of a star and the process of a nuclear fusion. Then compare what's different about it and what's the same.
Marrrta [24]3 years ago
5 0

Answer:

False

Explanation:

A <em>main sequence star</em> is a star that fuses hydrogen into helium.

A massive star needs a higher pressure and temperature at its core to keep itself from collapsing.

It must burn up its core supply of hydrogen <em>more rapidly</em> than a less massive star.

As a result, it spends less time in the main sequence before it becomes a red giant.

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What is the difference between Polar and Non-Polar molecules?
Alekssandra [29.7K]
<span>When you have a polar molecule, your bonds will not cancel out. This means that in a polar bond, the electronegativity of the atoms will attend to be different. For non-polar bonds the electro-negativity of the atoms will also be equal. In a polar bond you will have an unequal sharing of electron pairs which causes a molecular dipole. I hope this helps.

</span>
7 0
3 years ago
Cómo se formulan los hidroxidos?
uysha [10]

Answer:

es esto OH−

Explanation:

el hidróxido es hidrógeno unido covalentemente al oxígeno. Es un anión y tiene carga negativa.

6 0
3 years ago
Crabs are organisms that have five pairs of legs. In certain species of crabs, the fifth pair of legs has a flattened, paddle-li
Katyanochek1 [597]

Answer:

A

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3 0
3 years ago
Which subatomic particle can change the molecular geometry of a molecule?
emmainna [20.7K]

Answer:

Electrons

Explanation:

According to the Valence Shell Electron Pair Repulsion Theory (VSEPR), the geometry of a molecule depends on the number of electron pairs (regions of electron density) on the central atom of the molecule. Electron pairs on the valence shell of the molecule tend to position themselves as far apart in space as possible to minimize repulsion between them. Hence, the orientation of these electron pairs is the ultimate determinant of the observed geometry of a molecule.

Lone pairs of electrons cause more repulsion than bond pairs of electrons on the central atom of a molecule. Hence when the central atom of a molecule contains lone pairs of electrons, the molecular geometry is usually distorted from the expected geometry on the basis of VSEPR theory.

Hence, electrons are the subatomic particles which are responsible for any change in the observed molecular geometry of a molecule.

6 0
3 years ago
What is the chemical formula for salt?
Hoochie [10]
In terms of the most common type of salt, sodium chloride, NaCl is the chemical formula of this salt,
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