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Finger [1]
3 years ago
14

Please give me a clear message on what to do. how do you change your brainly username?

Chemistry
2 answers:
emmainna [20.7K]3 years ago
5 0

Answer:

you can't change it mate I am so sorry

BTW can you help me in my latest questions it's not related to studies it's a problem I am having with my laptop that need to get cured as I have exam tomorrow

iren2701 [21]3 years ago
5 0

Answer:

Follow these steps to make a change:

1) Log in to your account.

2) Go into Profile Settings, select Edit Profile.

3) Go to Your Preferences and edit the First Name section.

4) Select Change to save.

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Do your cells have access to everything they need over the first 4 or 5 hours that you are lost? Yes or No?
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4 0
3 years ago
True or false? The molar mass of a gas determines the amount of kinetic energy of the gas.
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3 years ago
At what time of the year can the sun be found at the zenith
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3 0
3 years ago
The four lines observed in the visible emission spectrum of hydrogen tell us that: a. We could observe more lines if we had a st
Aliun [14]

Answer:

c. Only certain energies are allowed for the electron in a hydrogen atom

Explanation:

Emission spectrum are produced when the excited electron in a atom release the energy in the form of photons to come to ground state. These photons are of different wavelengths depending on the excitation state of emitting electron or transition of electron. These electromagnetic radiation are observed through prism to produce the spectrum.

As the name indicates this spectrum is produced by emission of energy. Although the electron can be excited by different methods such as by heating but the key point is that electrons in hydrogen atom will emit the photons of same energy which they absorb and each electron can absorb only certain type of energy. So four lines were observed in the visible spectrum of hydrogen because only certain energies are observed for hydrogen atom.

6 0
3 years ago
The combustion of gasoline produces carbon dioxide and water. assume gasoline to be pure octane (c8h18) and calculate how many k
IgorC [24]
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7 0
3 years ago
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