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Marat540 [252]
3 years ago
13

What are the answers to these?

Chemistry
1 answer:
Eva8 [605]3 years ago
7 0

Answer:

1)physical change

Explanation:

2)chemical change

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The modern view of an electron orbital in an atom can best be described as
Roman55 [17]

Answer:

An orbital is a region in space where there is a high probability of finding an electron.

Explanation:

The orbital is a concept that developed in quantum mechanics. Recall that Neils Bohr postulated that the electron occupied stationary states which he called energy levels. Electrons emit radiation when the move from a higher to a lower energy level. Similarly, energy is absorbed by an electron to move from a lower to a higher orbit.

This idea was upturned by the Heisenberg uncertainty principle. This principle state that the momentum and position of a particle can not be simultaneously measured with precision.

Instead of defining a 'fixed position' for the electron, we define a region in space where there is a possibility of finding an electron with a certain amount of energy. This orbital is identified by a set of quantum numbers.

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3 years ago
What is the family and location of Lithium?
motikmotik

Explanation:

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<h2><em><u>Alkali </u></em><em><u>metal</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em></h2>

<h3><em><u>please</u></em><em><u> mark</u></em><em><u> as</u></em><em><u> brainliest</u></em><em><u> answer</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em></h3>

('\. ./')

( • . • )

(,,) (,,)

5 0
3 years ago
Read 2 more answers
Pleaseeeeee help with this i dont get it at all
Furkat [3]
Answer is C. in a reaction mole stays the same but mass changes and since it produced gas it means now we have less mass.
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3 years ago
Generally, A loses electrons when reacting with nonmetals and gains electrons when reacting with metals. A is a(n):
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Sorry I don’t exactly know I have exams rn I need points
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3 years ago
Why do we learn about Laws and Motion ​
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So you don't jump off a cliff thinking you could fly. Laws and Motion are heavily used in jobs and help us understand more about the mechanics of how earth's gravity operates. Imagine in the future where we could manipulate gravity? That's why we learn and study this so much.

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3 years ago
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