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Degger [83]
3 years ago
13

Calculate the mole fraction of methane in the inital mixture assuming the temperature and volume remain constant

Chemistry
1 answer:
Oxana [17]3 years ago
5 0
More info needed. Is there a picture or diagram?
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Answer: C

Explanation:

According to Neils Bohr, atoms contain electrons which are arranged in energy levels. The energy levels proceed from the lowest to the highest. When energy is supplied to an atom,it moves from lower to higher energy levels. The higher energy level is known as the excited state. Excited states are short lived and atoms quickly return to ground state with emission of the absorbed energy in the form of visible light. This visible light must have one of the seven colours observed in the visible spectrum; Red, orange, yellow, indigo, blue, green, violet. Energy required for this excitation is supplied by heating the substance in a flame.

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3 years ago
Help on 2 and 3 due tomorrow pls help
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Answer:

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2 years ago
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IgorC [24]
Hello,

Here is your answer:

The proper answer to this question is option C "stigma".

Here is how:

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Your answer is C.

If you need anymore help feel free to ask me!

Hope this helps!
7 0
3 years ago
How to figure out which melting point would have the lowest melting point ?
stellarik [79]

Answer:

That would be helium, with a melting point of 0.95 K (-272.20 °C)—although this happens only under considerable pressure (~25 atmospheres). At ordinary pressure, helium would remain liquid even if it could be chilled to absolute zero.

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