Please help me! Ill give brainliest who helps me first!!!!What is one difference between mixtures and pure substances?
A. mixtures can be physically separated
B. mixtures are made of one type of atom
C. pure substances have no chemical bonds
D. pure substances can be physically separated

Answers

Answer 1
Answer: i think it’s A hope this helps
Answer 2
Answer: Mixtures can be physically separated (I believe)

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Two objects move toward each other because of gravitational attraction. As the objects get closer and closer, the force between them _____. A. remains constant B. decreases C. increases

If you rub your hands together, does the entropy of the universe increas, decrease, or stay the same

Answers

Answer:

When you rub your hands together, the entropy of the universe increases. This increase in entropy is a result of the second law of thermodynamics, which states that in any energy transfer or transformation, the total entropy of an isolated system will always increase over time.

In this case, when you rub your hands together, you are converting some of the ordered kinetic energy of your hand motion into thermal energy (heat) due to friction. This process increases the randomness and disorder of the particles involved, including the molecules in your skin and the surrounding air. As a result, the overall entropy of the system, which includes your hands, the air, and everything else involved, increases.

So, the act of rubbing your hands together leads to an increase in entropy in the universe, consistent with the second law of thermodynamics.

Explanation:

• Which is the following statements describes the interaction between magnetic poles?

Answers

Answer:

Please state the statements in the comment so I can help

What happens to the room temperature in ehich an air conditioner is lefy running on a table in the midle of the room

Answers

An air conditioner takes heat out of the air that runs through it. It has to put that heat somewhere. If it can't blow the heat out of the room then the heat stays in the room. But that's not all. While it's running the air conditioner also uses electrical energy to run. And that generates more heat. So if there's an air conditioner running in a closed room then the room will get warmer.
it will get cold only in that room. if you also have it in a room and close the door it will also get colder. sorry if this didnt help.

'When we see something that exists in real life, there are many different ways to display imagery and importance using art. What the artist _____________ depends on what he/she wants to communicate.'

Answers

Answer:

Emphasizes

Explanation:

The expression of an art is intelligible to those that understand it, as such to make an impression an artist has to emphasize the point they want to communicate

An art is an expression of the personal experiences of the artist or a reaction to events or to reveal the realities as seen by the artist such as global warming and the environment, so as to get the attention of people with the goal to change them, such that a good art changes the most people, hence the need for emphasis.

Answer:

A - emphasizes

No two electrons can have the same four quantum numbers is known as the

Answers

Answer:

  • Pauli's exclusion principle

Explanation:

You can read this principle in any chemistry or physics textbook that deals with quantum numbers. It states that two electrons of an atom cannot have the same set of four quantum numbers.

As result:

  • Any orbital can have a maximum of two electrons, and

  • Two electrons in a same orbital have opposite spins: one will have +1/2 and the other will have -1/2.

Remember, that the quantum numbers are the numbers that identify the electrons in an atom.

  • n is the principal quantum number, and can have positive integer vaules: 1, 2, 3, 4, 5, 6, 7, ...

  • is the Azimuthal or angular momentum quantum number. It can have integer values from 0 to n -1: 0, 1, 2, 3, 4, ...

  • mℓ is the magnetic quantum number, which can have values from -ℓ to + ℓ

  • ms is the spin quantum number. which can have values +1/2 and -1/2.

In this way, Pauli's exclusion principle implies that two electrons occupying the same orbital will have equal n, ℓ, and mℓ values, meaning that their ms will be opposite: + 1/2 and −1/2.

Final answer:

The rule that no two electrons can possess the same four quantum numbers is known as the Pauli Exclusion Principle. Proposed by Wolfgang Pauli, this rule dictates that no two electrons can be in the same state within an atom. It limits the number of electrons in atomic shells and subshells, influencing the structure of atoms.

Explanation:

The rule that no two electrons can have the same four quantum numbers is known as the Pauli Exclusion Principle. These quantum numbers include: principal quantum number (n), orbital angular quantum number (l), magnetic quantum number (m), and spin quantum number (ms).

An Austrian physicist, Wolfgang Pauli, proposed this rule in 1925. This principle means that two electrons can share the same orbital if only their spin quantum numbers have different values. Since the spin quantum number can only take two values: +½ or -½, a maximum of only two electrons can occupy the same orbital. As a result, any atomic orbital can be populated by zero, one, or two electrons only.

This principle is important because it limits the number of electrons in atomic shells and subshells, and thus plays a crucial role in determining the structure of atoms and the characteristics of the elements on the periodic table.

Learn more about Pauli Exclusion Principle here:

brainly.com/question/33442697

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When white light splits into the spectrum of colours of which it is composed, it is said to have undergone

Answers

When white light splits into the spectrum of colors of which it is composed, it is said to have undergone dispersion. Dispersion happens when white light gets separated into colors based on the wavelength of the light. Due to dispersion of light, people can see a rainbow in the sky. I hope the answer helps.