According to the Pauli exclusion principle, when can two electrons occupy the same orbital?

Answers

Answer 1

Answer: Knowing that a no orbital can accommodate more than two electrons,we can predict the maximum number of electrons in each layer or sub-layer ,It is possible when :

* Only two electrons can be assigned to an s orbital.

* three orbitals in a sub-layer p can accommodate two electrons, this sublayer can accommodate a maximum of six electrons.

* The five d orbitals of a sub-layer can accommodate a total of ten electrons.

hope this helps!

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What gas is formed when magnesium reacts with hydrochloric acid?

Answers

Hydrogen gas is formed when magnesium reacts with hydrochloric acid.

Gasoline is a mixture composed primarily of hydrocarbons such as isooctane, which is also known as 2,2,4-trimethylpentane.Gasoline is assigned a number called an octane rating. Gasoline with an octane rating of 87 performs the same as a mixture that consists of 87% isooctane and 13% heptane.
An alternative fuel, E-85, can be used in some automobiles. This fuel is a mixture of 85% ethanol and 15% gasoline.

State the octane rating of a gasoline sample that performs the same as a mixture consisting of 92% isooctane and 8% heptane.
Identify the functional group in a molecule of ethanol in the alternative fuel E-85.

Answers

Because of the 92% isooctane, the gasoline sample's octane rating is 92.The functional group in ethanol is the hydroxyl group.

What is true about the dilution of a solution?The amount of solute decreases.
The volume remains the same.
The amount of solvent increases.
The concentration increases.

Answers

The amount of solvent increases, since the solvent is the one diluting the solution, the more you want your solution diluted, the more of solvent you'd use. :)

What is the speed of a rocket that travels 8000 meters in 12 seconds?Question 2 options:

667 m

667 m/s

96,000 m

96,000 m/s

Answers

Speed = distance / time
s = 8000 / 12
s = 667 m/s

In short, Your Answer would be Option B

Hope this helps!

Which is the best metal to use in an alloy to increase its electrical conductivity?A) Al
B) Cu
C) Fe
D) Sb

Answers

Answer;

-Copper (Cu)

Explanation;

-While all metals can conduct electricity, certain metals are more commonly used due to being highly conductive. The most common example is Copper. It is highly conductive which is why it is has been used in electrical wiring.

-Copper is used for electrical wiring because it is a good conductor of electricity. Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points. The free electrons in metals can move through the metal, allowing metals to conduct electricity.

B) CuCopper is the best metal to use in an alloy because it has the highest electrical conductivity rating of all non-precious metals due to the arrangement of its electrons. They are easily excited and can easily carry an electoral charge.

Choose the pieces of evidence that supported the existence of Pangaea and continental drift theory.o Fossilized plants and animals of the same species found on separate continents.
o Geological features, such as mountain ranges, that align on matching coasts of different continents.
o Island arc ranges are still connected under the Atlantic Ocean.
o Antarctica's glacial features are similar to the Arctic's.

Answers

Pangaea is scientifically known as the original whole mass of land that eventually was divided into separate mass entities called continents as a result to natural phenomena like earthquakes. This is more explained inthe continental drift theory. After rigorous collection of evidences, scientists noticed that fossilized plants and animals of the same species, also with the coastlines match on different continents. The answers are the first and second choices (A and B).

Fossilized plants and animals of the same species found on separate continents.

Geological features, such as mountain ranges, that align on matching coasts of different continents.

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