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scoray [572]
3 years ago
9

As an electron in an atom moves from the ground state to the excited state, the electron...?

Chemistry
1 answer:
ruslelena [56]3 years ago
8 0

Answer:

Absorbs energy

Explanation:

As an electron in an atom moves from the ground state to the excited state, the electron absorbs energy.

Electrons moves around in permissible orbits around the nucleus of an atom.

  • An electron in a certain energy level has a definite amount of energy associated with it at that level.
  • When an electron in ground state absorbs energy, it moves to a higher energy level.
  • When an electron in excited state loses energy, it moves to a lower energy level.

The transition of electrons from one level to another involves loss or gain of energy.

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What amount (moles) of compound is present in 1.00 g of each of the compounds in Exercise 54?
Anika [276]

Answer:

1. Caffeine, C₈H₁₀N₄O₂

Amount = 1.00/194 = 0.00515 moles

2. Ethanol, C₂H₅OH

Amount = 0.0217 moles

3. Dry Ice, CO₂

amount = 0.0227 moles

<em>Note: The question is incomplete. The compound are as follows:</em>

<em> 1. Caffeine, C₈H₁₀N₄O₂;</em>

<em>2. Ethanol, C₂H₅OH;</em>

<em>3. Dry Ice, CO₂</em>

Explanation:

Amount (moles) = mass in grams /molar mass in grams per mole

1. Caffeine, C₈H₁₀N₄O₂

molar mass of caffeine = 194 g/mol

Amount = 1.00 g/194 g/mol = 0.00515 moles

2. Ethanol, C₂H₅OH

molar mass of ethanol = 46 g/mol

Amount = 1.00 g/46 g/mol = 0.0217 moles

3. Dry Ice, CO₂

molar mass of dry ice = 44 g/mol

amount = 1.00 g/44 g/mol = 0.0227 moles

5 0
3 years ago
6 State Your Claim Make a claim about how you<br> could separate a mixture of rocks and sand.
Sloan [31]

Answer: Sand can be separated from the sand by the process of Sieving. sorry if I'm wrong please give me brainlest

Explanation:

4 0
2 years ago
A Lewis acid is a substance that can
katrin2010 [14]
Accept a pair of nonbonding electrons,a Lewis acid is an electron-pair acceptor. A Lewis<span> base is any </span>substance, such as the OH-<span> ion, that </span>can<span> donate a pair of nonbonding electrons. </span>A Lewis<span> base is therefore an electron-pair donor.</span>
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How many moles of water are formed from 0.65 moles of oxygen?
sleet_krkn [62]

Answer:

two moles of water

hope this helps

7 0
3 years ago
The temperature at which a liquid becomes a solid is the:
Olenka [21]
The answer is "c" because solidification or freezing is the term used for the process in which a liquid becomes a solid.<span> Freezing is an exothermic process that also is an example of a phase transition</span>
3 0
3 years ago
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