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VladimirAG [237]
3 years ago
12

How many electrons are shared in a double covalent bond?

Chemistry
2 answers:
AleksAgata [21]3 years ago
8 0
In a double covalent bonds there are 4 valence electrons that are shared.
Rus_ich [418]3 years ago
4 0

Answer:

4

Explanation:

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Determine the expression for the equilibrium constant, kc, for the reaction by identifying which terms will be in the numerator
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The kc is a representation of how fast the reaction proceeds to their products when it has achieved equilibrium. The activation energy for the forward and the one for the reverse reaction are similar because they attained chemical equilibrium. A chemical equilibrium happens when both of the reactant and products achieve the same concentration. An example is the process of melting and freezing. Melting and freezing for a given substance occurs at the same temperature. Because the temperature at which the solid starts to melt is also the temperature at which the liquid starts to freeze. They are at chemical equilibrium.

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4 years ago
Denise heard that little children will pick food based on color. So she offered 100 kindergarteners colored mashed potatoes for
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Answer:

I think the answer is B. the number of students choosing each color.

Explanation:

7 0
2 years ago
Ammonia is made industrially by reacting nitrogen and hydrogen under pressure, at high temperature, and in the presence of a cat
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Answer:

From 4.0 moles of hydrogen 2.67 moles of ammonia are produced.

Explanation:

Given data:

Number of moles of hydrogen react = 4.0 mol

Number of moles of ammonia produced = ?

Solution:

Chemical equation:

N₂ + 3H₂     →       2NH₃

Now we will compare the moles of hydrogen and ammonia from balance chemical equation.

                          H₂               :              NH₃

                           3                :                2

                           4                :              2/3×4 = 2.67 mol

From 4.0 moles of hydrogen 2.67 moles of ammonia are produced.

   

8 0
3 years ago
What will happen when a star loses so much mass that its gravity becomes weaker? O A. The star will get hotter O B. The star wil
faust18 [17]

Answer: C

Explanation:

6 0
3 years ago
If the mixing ratio of a parcel of air is 6 grams per kilogram and the relative humidity is 25 percent, the saturation mixing ra
Y_Kistochka [10]

Answer: -

24 grams per kilogram.

Explanation: -

We know that

The mixing ratio = actual (measured) mass of water vapor (in parcel) in grams / mass of dry (non water vapor) air (in parcel) in kilogram

The saturation mixing ratio = mass of water vapor required for saturation (in parcel) in grams/ mass of dry (non water vapor) air (in parcel) in kilograms

Relative humidity = actual (measured) water vapor content/ maximum possible water vapor amount (saturation)

Thus saturation mixing ratio = Mixing ratio / relative humidity

= 6 / (25/100)

= 24

4 0
3 years ago
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