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bezimeni [28]
3 years ago
11

How many valence electrons do most of the noble gases have

Chemistry
1 answer:
Misha Larkins [42]3 years ago
6 0
Noble gasses have full outer shells giving them 8 electrons
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Need to balance these equations
Brrunno [24]

The balanced chemical reaction of potassium chloride involves 2 moles of potassium to react with 1 mole of chlorine and other are explained below.

<h3>What is balanced equation?</h3>

Balanced chemical equations are those equations in which all entities are present in same amount on reactant as well as on the product side of the reaction.

Given chemical reactions are:

  • First equation is a balanced equation in which nitrogen reacts with hydrogen to form ammonia because all are present in same quantity on both sides.
  • Second equation is not a balances equation as number of chlorine atoms are not present in same quantity, so balanced equation is:

        2K + Cl₂ → 2KCl

  • Balanced equation for the third reaction is:

        CF₄ + 2Br₂ → CBr₄ + 2F₂

  • Balanced equation for the fourth reaction is:

        GaF₃ + 3Cs → 3CsF + Ga

  • Fifth reaction between barium sulfide and platinum di fluoride is balanced as all atoms are present in same amount on both sides.
  • Balanced equation for the last reaction is:

        MgF₂ + Li₂CO₃ → MgCO₃ + 2LiF

Hence in the formation of potassium chloride balanced equation involves 2 moles of potassium to react with 1 mole of chlorine.

To know more about balanced equation, visit the below link:

brainly.com/question/26694427

#SPJ1

5 0
2 years ago
The "bleaching" of plant leaves is caused by: A.water pollution B.poor soil quality C.air pollution D.excess bacteria
devlian [24]

Answer: The "bleaching" of plant leaves is caused by air pollution.

8 0
3 years ago
According to anthropologists, why did people moved to the Northern Nile River? (Site 1)
balu736 [363]

Answer:

The correct answer is - it provided water, food, transportation, and excellent, fertile soil for growing food.

Explanation:

People of Egypt moved to the northern Nile river due to various reasons. In this region, the soil is very excellent and helps in growing crops as the soil is fertile due to the appropriate climate and water resources.

It is aso helps in selling and transporting the products as it was a trade route at the time. As it is known Egypt has almost no rainfall so the only way crops can get water is through the Nile river.

4 0
3 years ago
Please help with question #9
Marat540 [252]
I believe the answer is 4 because solid are more compacted than liquid and gases and don't move around like liquid or gases. I'm pretty sure they have strong intermolecular forces because of how close they are. The only answer that makes sense is 4.
5 0
3 years ago
Which of the following is a balanced chemical equation?
Artemon [7]
`2H + 02  ----->  2H2O is a Balanced chemical equation. 


WATCH THESE FOR A BETTER UNDERSTANDING :
https://www.youtube.com/watch?v=yA3TZJ2em6g

https://www.youtube.com/watch?v=eNsVaUCzvLA
5 0
3 years ago
Read 2 more answers
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