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11111nata11111 [884]
3 years ago
6

What is the most abundant gas in Earth's present day atmosphere?

Chemistry
2 answers:
hodyreva [135]3 years ago
8 0

The answer is nitrogen

Anna007 [38]3 years ago
4 0
Nitrogen. air consists 78% of nitrogen gas
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Condensation point and freezing point of argon in KELVIN.
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(this is all i could figure out :) hope it helps)

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Why are carbon and nitrogen essential for survival to all living organisms? A.
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<span>Why are carbon and nitrogen essential for survival to all living organisms?
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Explain why atoms have no electrical charge even though they are made up of
Katen [24]

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Atoms have no electric charge because the protons and electrons "cancel out" each others charges.

Explanation:

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What is the connection between Archimedes and the Mass-Volume lab
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Answer:

Explanation:

This question is not very clear, however, going by the key words in the question, Archimedes' principle shows a relationship between mass and volume.

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The volume displaced here can be determined using the formula

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3 years ago
The equation for photon energy, E, is E=hc/λ
Leni [432]

Answer:

The wavelength, λ, of a photon that has an energy of E = 3.92×10⁻¹⁹ J is 5.054*10⁻⁷ m

Explanation:

The wavelength is defined for every periodic wave, that is, for the type of wave that repeats itself with exactly the same shape every given interval of time. It is the distance between two points from which the wave repeats.

Radiation is the emission, propagation and transfer of energy in any medium in the form of electromagnetic waves or particles.

The energy carried by electromagnetic radiation travels by waves. This energy is transmitted grouped in small "quanta" of energy called photons. The energy of a photon is measured in Joules (J) and is

E=\frac{h*c}{wavelength}

Being:

  • E=3.92×10⁻¹⁹ J
  • h= 6.626×10⁻³⁴ J⋅s (Planck's constant)
  • c = 2.99×10⁸ m/s (the speed of light)
  • wavelength=?

and replacing:

3.92*10^{-19}J =\frac{6.626*10^{-34}J.s*2.99*10^{8}\frac{m}{s}   }{wavelength}

you get:

wavelength =\frac{6.626*10^{-34}J.s*2.99*10^{8}\frac{m}{s}   }{3.92*10^{-19}J}

wavelength= 5.054*10⁻⁷ m

<u><em>The wavelength, λ, of a photon that has an energy of E = 3.92×10⁻¹⁹ J is 5.054*10⁻⁷ m</em></u>

6 0
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