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Nina [5.8K]
3 years ago
7

Which statements describe processes involved in the accretion of planetesimals and protoplanets? Check all that apply. Both invo

lve the melting of solid materials in the nebula. Both involve the formation of solid particles from nebular materials. Both involve the work of the gravitational push on nebular materials. Both involve the trapping of gases and the clumping of masses of matter. Both involve the growing of gas grains with the addition of atoms and molecules.
SAT
2 answers:
maria [59]3 years ago
7 0

Answer:

the answers are

(2)Both involve the formation of solid particles from nebular materials

And

(4)Both involve the trapping of gases and the clumping of masses of matter

Explanation:

PLEASE MARK ME AS BRAINLIEST

Zigmanuir [339]3 years ago
5 0

Answer:

Answer:

•Both involve the formation or solid particles from nebular materials

•Both involve the trapping of gases and the clumping of masses and matter

Explanation:

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How many moles of hcl are in 7. 80 x 1022 molecules?.
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Taking into account the definition of Avogadro's Number, 7.80×10²² molecules of HCl  are contained in 0.1295 moles of HCl.

<h3>Avogadro's Number</h3>

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

<h3>This case</h3>

Then you can apply the following rule of three: if 6.023×10²³ molecules are contained in 1 mole of HCl, then 7.80×10²² molecules are contained in how many moles of HCl?

amount of moles of HCl= (7.80×10²² molecules × 1 mole)÷ 6.023×10²³ molecules

<u><em>amount of moles of HCl= 0.1295 moles</em></u>

Finally, 7.80×10²² molecules of HCl  are contained in 0.1295 moles of HCl.

Learn more about Avogadro's Number:

<u>brainly.com/question/11907018?referrer=searchResults </u>

<u>brainly.com/question/1445383?referrer=searchResults </u>

<u>brainly.com/question/1528951?referrer=searchResults</u>

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