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mylen [45]
3 years ago
8

Two electrons are found in the same atom. One electron has the quantum number set (4, 1, 0, +½), and the other electron has the

quantum number set (4, 1, 1, +½). They share the
Chemistry
1 answer:
Kruka [31]3 years ago
5 0
Quantum states of electrons are usually written in terms of four numbers: the principle quantum number (n), the angular momentum azimuthal number (L), the magnetic quantum number (ml), and the spin projection number (ms). The quantum number set (4,1,0,+1/2) and (4,1,1,+1/2) share the same principle quantum numbers and therefore both sit in the n=4 electron shell. 
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[15 Points, Stoichiometry and Gases]
KiRa [710]

The reaction is

CaC₂(s) + 2H₂O (l) -----> Ca(OH)₂ (s) + C₂H₂ (g) ​

As we have data of gas ethyne (or acetylene), C₂H₂

We can calculate the moles of acetylene and from this we can estimate the mass of calcium carbide taken

the moles of acetylene will be calculated using ideal gas equation

PV =nRT

R = gas constant = 0.0821 Latm/molK

T = 385 K

V = volume = 550 L

P = Pressure = 1.25 atm

n = moles = ?

n = PV /RT = 1.25 X 550 / 0.0821 X 385 = 21.75 mol

As per balanced equation these moles of acetylene will be obtained from same moles of calcium carbide

moles of calcium carbide = 21.75mol

molar mass of CaC₂ = 40 + 24 = 64

mass of CaC₂ = moles X molar mass = 21.75 X 64 = 1392g

6 0
4 years ago
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Consider the balanced equation.
Zolol [24]

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6 0
3 years ago
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Explanation:

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3. Gasoline, coal, batteries, and logs all have chemical energy. When they burn that chemical energy will be transformed into en
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Answer:

Thermal energy

Explanation:

When gasoline, coal, batteries and logs are all burn they transform chemical energy to thermal energy.

The chemical energy is the energy held between chemical chains and bonds within an atom.

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14 Copper(II) oxide reacts with hydrogen.
e-lub [12.9K]

Answer:

B

CuO

H2

Explanation:

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