The answer is C) catalyst speed up reactions and activation energy
Answer: A. The extra electrons start to fill higher sublevels in the energy level.
Explanation:
From the conservation of mass, matter is not created nor
destroyed. So ponder it this way, for example I put one piece of toast in a
toaster, but when it is done I had two pieces, that makes no sense right? Same
thing with a chemical reaction but in molecular terms, all things must stay constant.
If you put a convinced amount you have to get that quantity back, not less or
not more in broad terms.
The Pcl6 has 48 bonded electrons and 18 lone pairs.
The Lewis structure of Pcl6 is as follows: -
Phosphorous is bonded with 6 chlorine atoms with 18 lone pairs.
Lewis structures, also known as Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDS), are diagrams that show the bonding between atoms of a molecule, as well as the lone pairs of electrons that may exist in the molecule. [1][2][3] A Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds.
In Lewis structure, atoms are bonded with single bonds. If total number of electrons are 't' and number of bonds are 'n', then t-2n number of electrons are to be placed. Once the central atom is placed, they need to complete the octet rule.
Learn more about Lewis-dot structure from,
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