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Leona [35]
3 years ago
13

What do Lewis dot structures show?​

Chemistry
1 answer:
inessss [21]3 years ago
8 0

Answer:

They display the number of valence electrons surrounding an element or compound.

Explanation:

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Hope this would help you

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3 years ago
2 nf3 + 225 kj -> n2 + 3f2 is it exothermic or endothermic
velikii [3]
Due to energy being a reactant instead of a product, the process is endothermic. The system must absorb a quantity of energy before it can react, so it must be an endothermic system.
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Ibigay ang kahulugan nito ayun sa paliliwanag<br>konduktor piloto drayber makinista​
Westkost [7]

Answer:

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6 0
3 years ago
If a gas has a volume of 350 mL at 780 mm Hg, what pressure will be needed to cause its volume
makkiz [27]

The required pressure of the gas is 546 mmHg.

<h3>What is the relation between volume and pressure?</h3>

Relation between the volume and pressure of gas is explained through the ideal gas equation PV = nRT, and for the question required equation is:

P₁V₁ = P₂V₂, where

P₁ & V₁ are the initial pressure and volume.

P₂ & V₂ are the final pressure and volume.

On putting values from the question to the equation, we get

P₂ = (780)(350) / (500) =

P₂ = 546 mmHg

Hence required pressure is 546 mmHg.

To know more about ideal gas equation, visit the below link:

brainly.com/question/24236411

#SPJ1

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2 years ago
How much is the oxygen valency?
Marina CMI [18]
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