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Anuta_ua [19.1K]
3 years ago
6

Which orbital is the first to fill with electrons in a given principal energy level?

Chemistry
2 answers:
frez [133]3 years ago
8 0
The s orbital is first to fill
zepelin [54]3 years ago
4 0

Answer:  s orbitals

Explanation:  s orbital is the first to fill with electrons in a given principal energy level.

It has the most penetrating power out of all the 4 orbitals.

There are 4 orbitals in which the electrons are filled regularly.These are s(sharp), p(principle), d(diffused) and f(fundamental).

S orbitals are near the nucleus . The electrons are filled as per Aufbau Principle.

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A reaction produces 0.883 moles of H₂O. How many molecules are produced?
prisoha [69]
The answer is 5.32 × 10²³ molecules

<span>Avogadro's number is the number of units (atoms, molecules) in 1 mole of substance:
</span>6.023 <span>× 10²³ units per 1 mole

We have 0.883 moles.
If 1 mole has </span>6.023 × 10²³ molecules, 0.883 moles will have x molecules:
1 mole : 6.023 × 10²³ molecules = 0.883 moles : x

x = 6.023 × 10²³ molecules * 0.883 moles : 1 mole = 5.32 × 10²³ molecules
6 0
3 years ago
An adult mosquitoes lifespan is about 16 days how many minutes is that
Delicious77 [7]
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3 years ago
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oksian1 [2.3K]
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5 0
3 years ago
W
DerKrebs [107]

Answer:

F = 30 N

Explanation:

Given data:

Mass of toy train = 1.5 kg

Acceleration of train = 20 m/s²

Amount of force acting on it = ?

Solution:

The net force on object is equal to the its mass multiply by its acceleration.

Formula:

F = ma

F = force

m = mass

a = acceleration

Now we will put the values in formula.

F = 1.5 kg × 20ms⁻²

F = 30 kg.ms⁻²

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7 0
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Vsevolod [243]

Answer: 30.06% is your answer.

I hope this helps.

Stay safe and have a good day :D

7 0
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