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Vika [28.1K]
3 years ago
15

List 3 chemical compositions of magma (Earth science)

Chemistry
2 answers:
Gre4nikov [31]3 years ago
8 0
There are three basic types of magma: basaltic, andesitic, and rhyolitic, each of which has a different mineral composition. All types of magma have a significant percentage of silicon dioxide. Basaltic magma is high in iron, magnesium, and calcium but low in potassium and sodium.
max2010maxim [7]3 years ago
4 0

Answer:

iron, magnesium, and calcium but low in potassium and sodium.

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What element is undergoing oxidation in the following reaction?. . CH4(g) +2O2 (g) -> CO2(g) +2H2O(g). . . option . a) C. b)
SVETLANKA909090 [29]
The correct answer is a.) C. Oxidation occurs when an element loses electrons and increases its oxidation state. In the chemical equation, Carbon in CH4 has an oxidation state of 4- while Carbon in CO2 has an oxidation of 4+.
4 0
3 years ago
Read 2 more answers
1st Define Covalent bond and it's type
irakobra [83]

Answer:

  1. COVELENT BOND:-The chemical bond formed by the sharing of an electron pair between two atoms so that both the atoms get their octet complete is called covalent bond
  • SINGLE COVELENT BOND:-it is formed by sharing of one pair of electron between two atoms
  • DOUBLE COVELENT BOND:-it is formed by sharing of two pair of electron between two atoms
  • TRIPLE COVELENT BOND:- it us formed by sharing of three pair of electron beyween two atoms

2)Electron dot structures of carbon dioxide:-Oxygen atom contains 6 valence electrons which form 2 lone pairs. Since it is bonded to only one carbon atom, it must form a double bond. Carbon atom contains four valence electrons, resulting in zero lone pairs. Therefore, it is doubly bonded to each oxygen atom.

3))Sulfur has an atomic number is 16 with the

symbol as 'S'

  • The electronic configuration of sulfur is said to be 2,8,6
  • The valence electrons present in sulfur is 6.
  • Sulfur forms an octet structure by connecting 8 sulfur atoms with each other by the formation of single covalent bonds.
  • The sulfur molecule's chemical formula is S8.
  • Sulfur is usually used in the manufacture of sulphuric acid.

Explanation:

<h2>HOPE IT HELPS YOU #ITZADMIRER</h2>

5 0
3 years ago
Why are Van der Waals forces important?
lilavasa [31]

Answer:

The answer is B.

Explanation:

They are the strongest type of inter-molecular force attractive forces that can act between atoms. This is why Vander Walls forces important.

7 0
3 years ago
Which of the following is a redox reaction? (HELP ASAAAP)
Marianna [84]

Answer:

D

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Al is a reducing agent because it removes Oxygen from another compound

Mno2 is an oxidizing agent

4 0
3 years ago
We know that the law of conservation of energy states that energy can not be created or destroyed. It only changes form. Conside
mario62 [17]

I'm not sure but I think the answer is C or D.

I think A is not possible because where did the energy go if it's not transformed?

B is definitely not because energy cannot be destroyed.

4 0
3 years ago
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