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Alona [7]
3 years ago
7

How many valence electrons does fluorine have?

Chemistry
1 answer:
laiz [17]3 years ago
3 0
An atom of fluorine would possess 7 valence electrons as it is found in group 7 of the periodic table.

The group number in this case corresponds to the number of valence electrons present.

So, for instance, because Chlorine is also found in group 7, it would also have 7 valence electrons.
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nevsk [136]

Answer:

4NH₃(g)  + 5O₂(g)  →  4NO(g)  +  6H₂O

2NO(g) + O₂(g) → 2 NO₂

Explanation:

First of all, we need to consider the reaction for production of ammonia. In this reaction we have as reactants, nitrogen and hydroge.

3H₂ (g) +  N₂(g)  →  2NH₃ (g)

Afterwards, ammonia reacts to oxygen, to produce NO and H₂O

The equation for the process will be:

4NH₃(g)  + 5O₂(g)  →  4NO(g)  +  6H₂O

Then, we take the nitric oxide to make it react, to produce NO₂, in order to produce nitric acid, for the final reaction:

2NO(g) + O₂(g) → 2 NO₂

3NO₂(g) + H₂O(g) → 2 HNO₃ (g) + NO(g)

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4 years ago
How much energy is needed to change 44 grams of ice at -8° to steam at 107°?
Tpy6a [65]
Q=m(c∆t +heat of fusion + heat of evaporation)

m= 44g
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heat of evaporation=2260 J/g

Q=44(4.186*115 + 333.55 + 2260)
Q= 135297.36 J
5 0
3 years ago
What is true about energy?
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Answer:

See explaination

Explanation:

please kindly see attachment for the step by step solution of the given problem.

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3 years ago
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