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olga nikolaevna [1]
3 years ago
9

Helium, neon, and argon are examples of

Chemistry
2 answers:
IceJOKER [234]3 years ago
5 0

c noble gas i answered it, and i got it right


iogann1982 [59]3 years ago
4 0
C) Noble gases
The six noble gases are helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). Their atomic numbers are, respectively, 2, 10, 18, 36, 54, and 86.
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A flexible container at an initial volume of 6.13 L contains 2.51 mol of gas. More gas is then added to the container until it r
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Answer:

2.12 moles of gas were added.

Explanation:

We can solve this problem by using<em> Avogadro's law</em>, which states that at constant temperature and pressure:

  • V₁n₂=V₂n₁

Where in this case:

  • V₁ = 6.13 L
  • n₂ = ?
  • V₂ = 11.3 L
  • n₁ = 2.51 mol

We <u>input the data</u>:

  • 6.13 L * n₂ = 11.3 L * 2.51 mol
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As <em>4.63 moles is the final number of moles</em>, the number of moles added is:

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Answer:

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Answer: The Earth is an oblate spheroid which is more elongated along the equator.

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