The number of atoms of Hg in 4.5 mole sample has been given as
. Thus, option A is correct.
The number of atoms in a mole of sample has been given by Avogadro number. Avogadro number has been a constant and has been given the value of
.
The number of atoms in a mole of sample has been given as:
![\rm 1\;mole=\;6.022\;\times\;10^2^3](https://tex.z-dn.net/?f=%5Crm%201%5C%3Bmole%3D%5C%3B6.022%5C%3B%5Ctimes%5C%3B10%5E2%5E3)
The given sample has been consisted of 4.5 moles of Hg. Thus, the number of atoms in the sample has been given by:
![\rm 1\;mole\;Hg=\;6.022\;\times\;10^2^3\;atoms\\4.5\;mol\;Hg=4.5\;\times\;6.022\;\times\;10^2^3\;atoms\\4.5\;mol\;Hg=27.099\;\times\;10^2^3\;atoms](https://tex.z-dn.net/?f=%5Crm%201%5C%3Bmole%5C%3BHg%3D%5C%3B6.022%5C%3B%5Ctimes%5C%3B10%5E2%5E3%5C%3Batoms%5C%5C4.5%5C%3Bmol%5C%3BHg%3D4.5%5C%3B%5Ctimes%5C%3B6.022%5C%3B%5Ctimes%5C%3B10%5E2%5E3%5C%3Batoms%5C%5C4.5%5C%3Bmol%5C%3BHg%3D27.099%5C%3B%5Ctimes%5C%3B10%5E2%5E3%5C%3Batoms)
The scientific notation has been the short hand used for writing the numbers. The short hand for atoms in 4.5 moles of Hg has been
.
Thus, the number of atoms of Hg in 4.5 mole sample has been given as
. Thus, option A is correct.
For more information about the number of atoms, refer to the link:
brainly.com/question/20672430
Answer:
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Answer:
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Answer:
This question is incomplete
Explanation:
There are two major forms of energy; these are potential and kinetic energy. Kinetic energy is the energy present in moving options. Examples include mechanical and electrical energy.
The formula for kinetic energy is 1/2mv² where "m" is mass and "v" is velocity.
While potential energy is the energy present in stationary objects that can be put to use in future. Example includes a ball in its resting state. The formula for potential energy is "mgh" where "m" is mass, "g" is acceleration due to gravity and "h" is height
Considering the law of conservation of energy which states that energy can neither be created nor destroyed but can be transformed from one form to another. Looking at the example provided earlier for potential energy, a ball in its resting position (having a potential energy) when kicked will have a kinetic energy (which can be calculated with the formula provided earlier), hence
Total energy = potential energy (P.E) + kinetic energy (K.E)
This formula and the explanation above can be used to answer the completed question.
NOTE: There is no standard relationship between P.E and K.E. They could be directly or indirectly proportional depending on the circumstance.