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Ivahew [28]
3 years ago
9

Free brainlist ?!?!?!?!?!?!?!???!?!?!?!?!???!!??!!?!!!?!?!!??

Chemistry
2 answers:
sweet [91]3 years ago
6 0
HEYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
Alchen [17]3 years ago
4 0

Answer:

please?

Explanation:

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The transition from the gas phase directly to the solid phase is called:
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Express 5.241 in scientific notation.
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An electron in a hydrogen atom moves from level 1 to level 4. The electron then drops from level 4 to level 2. Which
-Dominant- [34]

Answer:

The energy absorbed in the first move is greater than the energy released in the second move

Explanation:

Electrons require (absorb) energy to move to a higher energy level when there is a large external heat source, the presence of an electric field or by colliding with other electrons

And the amount of energy absorbed by the electron is exactly equal to the change in the energy state between the initial energy level of the electron and the destination energy level

Therefore, given that the energy level of the electron at level 2 is higher than the energy level of the electron when at level 1, we have;

The difference in the energy level between level 4 and level 1 is greater than the difference in the energy level between level 4 and level 2 and more energy is absorbed and therefore, released when the electron moves from level 1 to level 4 than when the electron drops from level 4 to level 2.

The most likely result is that 'the energy absorbed in the first move is greater than the energy released in the second move'.

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What powdery mineral is a health hazard when airborne?
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Answer:

Mineral dusts are solid particles, that may become airborne depending upon their origin and the surrounding physical conditions. Lead is potential poison. It is obtained from the earth crust. The lead poisoning is a popular occupational hazard. The lead in air, when taken by the human body through respiration is responsible to cause anemia, weakness and kidney and brain damage, labored breathing and lung diseases.


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