Answer:
27 days, 7 hours and 43 minutes.
Explanation:
To complete a full orbit around Earth, it takes 27 days, 7 hours and 43 minutes for the Moon. This is called sidereal month and is measured by the Moon's position relative to distant *fixed" stars.
interstellar cloud of dust, hydrogen, helium and other ionized gases.
Answer:
<em>249 kJ</em>
Explanation:
To obtain the energy change of the reaction:
H₂O → H₂ + ¹/₂ O₂
It is necessary to obtain the difference between bond energy of the products and bond energy of the reactant, thus:
Energy of products:
1 mol of H-H bond × 436 kJ/mol = 436 kJ
¹/₂ mol of O=O bond × 498 kJ/mol = 249 kJ
Energy of reactant:
2 mol of H-O bond × 467 kJ/mol = 934 kJ
Energy change of the reaction is:
934 kJ - (436 kJ + 249 kJ) = <em>249 kJ</em>
<em></em>
I hope it helps!
It arranges all the elements in an organized and informative manner.
<u>Answer:</u> The binding energy for lithium-6 nuclei is 3.09 E+11
<u>Explanation:</u>
Binding energy is defined as the energy which holds the nucleus together. It is basically the product of mass defect and the square of the speed of light.
This energy is calculated by using Einstein's equation, which is:
where,
E = Binding energy of the atom
= Mass defect = 0.0343g/mol = 
(Conversion factor: 
)
c = speed of light = 
Putting values in above equation, we get:
(Conversion factor: 
)
Hence, the binding energy for lithium-6 nuclei is 3.09 E+11
