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evablogger [386]
3 years ago
11

Which of the following statements is true about energy quantization at the atomic level? Electrons in the outermost orbits are t

he most stable. Electrons in all the orbits around the nucleus have the same amount of energy. Electrons in the orbit closest to the nucleus have the least amount of energy. Electrons absorb or release the same amount of energy independent of the energy levels.
Chemistry
1 answer:
MAVERICK [17]3 years ago
8 0
<h2>Answer:</h2>

The correct answer is option C which is, "Electrons in the orbit closest to the nucleus have the least amount of energy".

<h3>Explanation:</h3>
  • There are different orbitals around the nucleus on which the electrons moves around the nucleus.
  • These orbitals have a specific energy, due to which they are known as energy levels.
  • The energy level near to the nucleus has least amount of the energy and the energy of the orbitals increase as the distance of the orbitals increase to the nucleus.
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masya89 [10]
Answer: Option (D) 30N

Detailed Solution:
According to Newton's second law:

F = ma --- (A)

Given:
mass = 5kg
acceleration = 6 m/s^2
F = ?

Plug all the value in equation (A)
F = (5)(6)
Ans: F = 30N
4 0
3 years ago
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Why does aluminium oxide (Al2O3) have a higher melting point than sodium oxide (Na2O)?
Lilit [14]

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5 0
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Alika [10]
Kinetic and nuclear are energies
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3 years ago
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Which equation represents an oxidation-reduction reaction?
bazaltina [42]
In an oxidation-reduction reaction there is an exchange of electrons.


The exchange of electrons implies change in the oxidation states: at least one element increases its oxidation number while other reduces it.


By simple ispection you can predict that in the equation b. there is a change in oxidation states of Cl and Mn.


Now you can check it:


Equation             4H   Cl     +    Mn  O2     ->    Mn  Cl2   + 2H2 O     + Cl2    

oxidation sates   1+  1-             4+   2-              2+   1-         1+   2-         0


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Answer b.   
3 0
3 years ago
2. What is the volume of 40.0 g of N2 at STP?
vampirchik [111]

Answer:

Molar mass of

N

2

=

28 g/mol

Moles of

40.5 g N

2

gas

=

40.5 g

28 g/mol

=

1.45 mol

1 mol

of any gas at

STP

occupies

22.4 L

of volume.

1.45 mol

of

N

2

gas will occupy

1.45

mol

×

22.4 L

1

mol

=

32.48 L

3 0
2 years ago
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