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Andreyy89
4 years ago
6

PLZ HELP!!!!

Chemistry
1 answer:
Greeley [361]4 years ago
6 0
In oil and gas industry:
When crude oil get extracted from well, salt water and some other stuff needs to be removed before oil can be sued in the car


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What type of solid is formed when a bond occurs between magnesium and oxygen?
Luden [163]

Answer:

3) Ionic

Explanation:

The solid formed when a bond occurs between magnesium and oxygen is an ionic bond. This bond type occurs between a metal and non-metal.

  • Magnesium is the metal
  • Oxygen is the non - metal
  • Due to the large electronegativity difference between the two species, the metal loses electrons which the non-metal oxygen gains
  • They both complete their octet and electrostatic attraction leads to the formation of ionic bonds.
3 0
3 years ago
you turn on a lamp.The amount of light energy released by the light bulb is less than the amount of electrical energy that flows
valentinak56 [21]
A) some energy is converted to heat

7 0
3 years ago
A liquid with a high viscosity cannot be a mixture.
enot [183]
It can be made true by changing "cannot" to "can".
5 0
3 years ago
Magnesium (Mg) reacts with chlorine gas (Cl2) to produce magnesium chloride (MgCl2). How many grams of Mg will reacts with 2 mol
Rom4ik [11]
Mg   +   Cl₂ -----> MgCl₂
24g     1 mol


24g Mg ---- 1 mol Cl₂
Xg Mg ------ 2 mol Cl₂
X = 2×24
<u>X = 48g Mg</u>
_________________
:)
7 0
3 years ago
The following Lewis diagram represents the valence electron configuration of a main-group element. This element is in group 2A A
Paraphin [41]

<u>Answer:</u> The symbol of the ion formed is Ca^{2+}

<u>Explanation:</u>

An ion is formed when a neutral atom looses or gains electrons.

  • When an atom looses electrons, it results in the formation of positive ion known as cation.
  • When an atom gains electrons, it results in the formation of negative ion known as anion.

Electronic configuration is defined as the representation of electrons around the nucleus of an atom.

Number of electrons in an atom is determined by the atomic number of that atom.

The element present in Group 2-A and in period 4 is Calcium (Ca)

Electronic configuration of Ca atom:  1s^22s^22p^63s^23p^64s^2

This atom will loose 2 electrons to attain stable electronic configuration similar to Argon element (noble gas)

The electronic configration of Ca^{2+}\text{ ion}=1s^22s^22p^63s^23p^6

Hence, the symbol of the ion formed is Ca^{2+}

4 0
4 years ago
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