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GREYUIT [131]
3 years ago
14

The first electron shell of an atom is complete when it has ___ electrons and the second electron shell is complete when it has

___ electrons and the third electron shell is complete when it has ___ electrons The fir Group of answer choices 2, 4 ,6 4, 8, 20 2, 6, 18 8, 2, 32 2, 8, 18
Chemistry
1 answer:
elena-s [515]3 years ago
5 0

Answer:

2, 8, 8

Explanation:

The first electron shell always has 2 electrons when it is complete. The second electron shell and 3rd shell can hold 8 when completed.

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Glycolysis is the process by which energy is harvested from glucose by living things. Several of the reactions of glycolysis are
pantera1 [17]

Answer:

1. Options A and B

2. Options B and C

3.. B. Net ∆G = -16.7 KJ/mol; C. Net ∆G = -14.2 KJ/mol

Explanation:

1. The spontaneity of a chemical reaction depends on its standard free energy change, ∆G. If ∆G is negative, the reaction is favourable, but when it is positive, the reaction is unfavorable.

Therefore, since reaction A and B have ∆G to be positive, they are unfavorable

2. Coupling an unfavorable reaction to a favourable reaction can help the reaction to proceed in the forward direction as long as the net free energy change is negative.

Coupling reaction A and C, as well as reaction B and C will make the reactions to become favourable as net ∆G is negative in both instances.

3. A and C: net ∆G = 13.8 - 30.5 = -16.7 KJ/mol

B and C: net ∆G = 16.3- 30.5 = -14.2 KJ/mol

4 0
3 years ago
A direct relationship can be represented by:
patriot [66]

Answer:

A direct relationship between 2 quantities or variables may be a description of a specific approach that the 2 quantities or variables act with each other. once a amount or variable encompasses a direct relationship with another amount or variable, we are able to describe it employing a mathematical expression.

Explanation:

6 0
4 years ago
Describe the attraction between 2 atoms as a result of sharing electrons
torisob [31]
A chemical bond is an attraction between atoms that allows the formation of chemical substances that contain two or more atoms. The bond is caused by the electrostatic force of attraction between opposite charges, either between electrons and nuclei, or as the result of a dipole attraction
6 0
3 years ago
Which phase change is best described by the following expression:
Harman [31]

Answer:

Explanation:

Do you go to gami

3 0
4 years ago
Using the phase diagram for water, what phase is water at 0.01 degrees Celsius and 0.0060 atmospheres?
anzhelika [568]
<span>Answer: at 0.01 °C and 0.0060 atm the three phases (solid, liquid and gas)
</span><span>
</span><span>
</span><span>Explanation:
</span><span>
</span><span>
</span><span>1) Water at 0.0060 atm and 0.01° C is at its triple point.
</span>

2) The triple point is the point in the phase diagram at which the three physical states coexist: gas, liquid and solid.

3) That means that water can freeze and boil at the same time. In fact they can happen any of the six changes of phase: freezing (liquid to solid), melting (solid to liquid), evaporation (liquid to gas), condensation (gas to liquid), sublimation (solid to gas), and deposition (gas to solid).

The phase diagram is unique for any substance, meaning that it is different for different substances: the normal boiling and melting points are different.
8 0
4 years ago
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