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mr Goodwill [35]
3 years ago
15

consult the periodic table. an electrically neutral atom has the following electron configuration: 1s2 2s2 2p6 3s2

Chemistry
2 answers:
grandymaker [24]3 years ago
7 0
Magnesium, written as Mg.
CaHeK987 [17]3 years ago
4 0

<u>Answer:</u> The element having given electronic configuration is magnesium.

<u>Explanation:</u>

Electronic configuration is defined as the representation of electrons around the nucleus of an atom.  Number of electrons in an atom are determined by the electronic configuration.

Atomic number is defined as the number of electrons or number of protons present in a neutral atom.

We are given an electronic configuration: 1s^22s^22p^63s^2

The total number of electrons = [2 + 2 + 6 + 2] = 12

The atom having atomic number 12 is magnesium.

Hence, the element having given electronic configuration is magnesium.

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3 years ago
Rank the following in terms of decreasing miscibility in C₈H₁₈ (octane), a major component of gasoline:
Aleksandr-060686 [28]

Answer:

In order of decreasing miscibility

C₉H₂₀ (nonane)→C₂H₅F (fluoroethane)→C₂H₅Cl (chloroethane)→H₂O (water)

Explanation:

The solubility of a solid is a measure of its ability to dissolve in a liquid while for liquids,  the miscibility is a measure of thhe liquid to mix with anoyjer liquid resulting in a soltion which can hold any amount of either liquids. Immiscible liquids are those that are not soluble or have very limited solibility with each other.

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In the order of decreasing miscibility as like dissolve like, ability to dissociate and polar and organic characteristics are considered

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3 years ago
Which type of seismic waves produces the most severe ground movement?
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Control of Blood pH by respiratory rate.
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Answer:

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B) The blood PH may rise to 7.60 during Hyperventilation because the removal of CO2 from the lungs causes the increase in  H^+ which is directly proportional to the increase in Blood PH levels

C) Hyper ventilation before a dash would be useful because it will remove excessive Hydrogen ions and and raise the Blood PH levels in preparedness of the production of acids like Lactic acid

Explanation:

A) During this procedure ( hypoventilation ) The CO2 in the arterial blood vessels and the lungs increases and this drives the PH level in the system lower, and the equilibrium will shift to the right. this is because the Blood-PH level is controlled by CO2 - bicarbonate buffer system

CO_{2} +H_{2} O ⇄ H^+ + HCO^-_{3}

B) The blood PH may rise to 7.60 during Hyperventilation because the removal of CO2 from the lungs causes the increase in  H^+ which is directly proportional to the increase in Blood PH levels

C) Hyper ventilation before a dash would be useful because it will remove excessive Hydrogen ions and and raise the Blood PH levels in preparedness of the production of acids like Lactic acid

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