Answer:
Using the Formula Fc = (Valence Electrons) - (Unbound Electrons) - (N bonds in the atom)
Explanation:
Concept: Formal Charge
Let's remember the concept of formal charge as the electric charge of an atom in a given molecule, it is calculated as it follows:
Fc = (Valence Electrons) - (Unbound Electrons) - (N bonds in the atom)
So to answer the question and by knowing the molecule, we can tell
a) Fc + Unbound Electrons + N Bonds of the atom = Valence Electrons, if the valence electrons are fewer than the actual electrons of the atom, it means it is missing electrons.
b) let' s remember the concept of expanded octet as an atom and the Lewis Structure having more than 8 electrons.
So if you sum the Valence Electrons and the N bonds in the atom multiplied by two (There are two electrons in 1 bond) and this number is greater than 8, you could say it has an expanded octet
Answer:
I would say A and D if you can pick two answers. if not then pick D
Radiant energy to thermal energy
Answer: 
for the reaction is 5.55
Explanation:
Equilibrium constant is the ratio of the concentration of products to the concentration of reactants each term raised to its stochiometric coefficients.
The given balanced equilibrium reaction is,
At eqm. conc. (0.010) M (0.15) M (0.37) M
The expression for equilibrium constant for this reaction will be,
![K_c=\frac{[Cl_2]\times [PCl_3]}{[PCl_5]}](https://tex.z-dn.net/?f=K_c%3D%5Cfrac%7B%5BCl_2%5D%5Ctimes%20%5BPCl_3%5D%7D%7B%5BPCl_5%5D%7D)
Now put all the given values in this expression, we get :
Thus the for the reaction is 5.55
