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MissTica
3 years ago
14

What are the categories when earth is divided according to its chemical composition? ​

Chemistry
1 answer:
STALIN [3.7K]3 years ago
3 0
The Earth is divided into three chemical layers: the Core [Inner Core (D) and Outer Core (C)], the Mantle (B) and the Crust (A). The Core is predominantly composed of iron and nickel. Even after 4.5 billion years of cooling, the Earth's core remains very hot.
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In a Lewis structure, why must pairs of unshared of lone pairs if dots be placed around the outside of some of the atoms
Maksim231197 [3]

Answer:

In a Lewis symbol, the symbol for the element is used to represent the atom and its core electrons. Dots placed around the atom are used to indicate the valence electrons. ... In 1916, Gilbert Newton Lewis, an American chemist, suggested that molecules were formed when atoms shared pairs of outer electrons.

Explanation:

6 0
3 years ago
Which set of numbers gives the correct possible values of l for n = 2
Paha777 [63]
HEY THERE!!

For a given principal quantum number or n, the corresponding angular quantum number or l is equivalent to a range between 0 and (n-1) .

This means that the angular quantum number for a principal quantum number of 2 is equivalent to:

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HOPE IT HELPED YOU.
3 0
3 years ago
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Volgvan
Scientists use the physical and chemical properties to help them identify and classify matter. These physical and chemical properties are in a macro-perspective, in which these matter contains compounds, elements and atoms. Hence, matter can be classified in various ways, <span><span>
1.    </span>Atomic number either atomic mass each element has</span> 
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3.    If they cannot reduce a certain substance into a much smaller quantified atomic structure then they they’ll use (2) to identify and classify it.</span>
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3 years ago
How many electrons does Mg-3 have?<br> PLEASE HELP
joja [24]
Magnesium has 22 electrons and 24 protons
7 0
3 years ago
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Why do the algae all look identical while the frogs look different?
Ierofanga [76]

Answer:

because algae made asexually but the frogs come from two sources mother and father

Explanation:

hope it will help you

4 0
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