Which change occurs when an atom in an excitedstate returns to the ground state?
(1) Energy is emitted.
(2) Energy is absorbed.
(3) The number of electrons decreases.
(4) The number of electrons increases.
Answers
Answer: The correct option is (1).
Explanation:
Whenever an atom in an excited state returns back to its ground state the energy is emitted out in the form of the radiation and the value of energy emitted can be determined by using the expression:
Where E = Energy of the radiation in joules
h = Planck's constant =
= Wavelength of the radiation in meters.
It is emitted by photons in the form of light, or in some cases, heat.
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Answers
n = PV / RT
n = (98.7x 10^3 Pa x 0.01 m^3) / (8.314 Pa m^3/ mol K) x 298.15 K
n = 0.40 mol N2
At the second condition, the number of moles stays the same however pressure and temperature was changed. So, the new volume is calculated as follows:
V = nRT / P
V = 0.40 x 8.314 x 293.15 / 102.7 x 10^3
V = 9.49 x 10^-3 m^3 or 9.49 L
Answers
That is because all of the conditions and the ingredients are the same. The one thing that makes the difference is the salt, which if removed, would cause everything to be the same. If she knows at how much regular water freezes, she can easily see how salt impacted the difference.
Answer:
salt
Explanation:
Answers
Next thing that you should do is to connect the dots of HOClO and do not forget that each dot connect with one lone electron.
Then draw valence of each electron and connect them with a line.
Final answer:
The Lewis structure of HOClO consists of a hydrogen atom bonded to an oxygen atom, which is in turn bonded to a chlorine atom. Two chlorine atoms are also bonded to each other in the structure.
Explanation:
The Lewis structure of HOClO can be determined using the concept of valence electrons. Oxygen (O) has 6 valence electrons, Chlorine (Cl) has 7 valence electrons, and Hydrogen (H) has 1 valence electron. Based on this, the Lewis structure of HOClO can be represented as follows:
H - O - Cl - O
Where the oxygen atom is bonded to the hydrogen atom and the chlorine atom, and the two chlorine atoms are bonded to each other, resulting in a single bond and two double bonds.
Learn more about Lewis Structure of HOClO here:
#SPJ6
Answers
Na⁺ and Cl⁻
hope this helps!
b. N₂O₃
c. NO₂
d. NO
e. N2₂O
Answers
43,89g≈44g
44g == 2x 14g (N) + 1x 16x(O)
M N₂O = 44g