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3 years ago

8

What two elements comprise most of a nebula? question 5 options: hydrogen and helium hydrogen and nitrogen oxygen and hydrogen c

arbon and hydrogen helium and lithium?

2 answers:

OleMash [197]3 years ago

5 0

hydrogen and helium and the most abundant elements in a nebula.

nlexa [21]3 years ago

3 0

Hydrogen and helium took the test was correct!

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Granite is an intrusive igneous rock with large crystals because it cools slowly. Where was this rock most likely formed?

Irina-Kira [14]

deep inside a volcano because it comes lava

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3 years ago

Like Earth, the moon

dedylja [7]

Um all? i’m confused

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2 years ago

Here's the question ~

Lelechka [254]

Using the Rydberg formula, the spectral line of H - atom is suitable for this purpose is Paschen, ∞ → 3.

Using the Rydberg formula;

1/λ = RH(1/nf^2 - 1/ni^2)

Given that;

λ = wavelength

RH = Rydberg constant

nf = final state

ni = initial state

When final state = 3 and initial state = ∞

Then;

1/λ = 1 × 10^7 m-1 (1/3^2 - 1/ ∞^2)

1/λ = 1 × 10^7 m-1 (1/3^2 )

λ = 900 nm

Hence, the correct answer is Paschen, ∞ → 3

Learn more about the Rydberg formula; brainly.com/question/17753747

3 0

2 years ago

Read 2 more answers

Which of the following is not a phase change?

sweet [91]

C. Diffusion is not a phase change.

6 0

3 years ago

Be sure to answer all parts. Butane gas is compressed and used as a liquid fuel in disposable cigarette lighters and lightweight

Salsk061 [2.6K]

Answer:

The correct answer will be "4.60 g".

Explanation:

The given values are:

Volume of Butane = 7.96 mL

Density = 0.579 g/mL

As we know,

⇒ $Mass \ of \ Butane = Density\times Volume$

On putting the estimated values, we get

⇒ $=0.579\times 7.96$

⇒ $=4.60 \ g$

6 0

3 years ago