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mojhsa [17]
4 years ago
6

In which environment would primary succession occur?

Chemistry
2 answers:
OLEGan [10]4 years ago
4 0

an area of exposed rock after a glacier melts away

taurus [48]4 years ago
3 0

Answer:

an area of exposed rock after a glacier melts away

Explanation:

i took the test

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Agnesium, calcium, and strontium are examples of ____________.
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Help asap on a time crunch
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Answer:

<u>only sodium chloride compounds</u> MOST LIKELY products of the reaction between sodium metal and chlorine gas.

Correct answer - C

Explanation:

A solid sodium metal reacts with gaseous form of chlorine gas to form  a solid sodium chloride.

This formation of sodium chloride arises due to transfer of one valence electron from sodium to chlorine atom and the both atoms get stable octet electronic configuration.

As a result, an ionic compound solid sodium chloride is formed.

The chemical reaction of formation sodium chloride is as follows.

2Na(s)+Cl_{2}(g) \rightarrow 2NaCl(s)

Therefore, <u>only sodium chloride compounds</u> MOST LIKELY products of the reaction between sodium metal and chlorine gas.

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The 2 forces that act on atoms are the electromagnetic force and the strong nuclear force.
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Electromagnetic forces occur between electrons and protons while nuclear forces occur between neutrons and protons in the nucleus.

Electromagnetic forces are the forces that are responsible for the attraction between electrons and protons. The electrons in shells repel each other.

The existence of electromagnetic forces explain why positively charged protons repel each other in the nucleus and neutrons are needed to buffer this effect.

The electromagnetic force has a short range. The strong nuclear force applies to the nucleus and focuses on the neutron - proton ratio.

An atom is unstable if it has too many protons because their repulsive force will exceed the nuclear force that keeps them together. Nuclear force is stronger for lighter nuclei than heavier ones.

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