Answer:
Explanation:
The concept of Lewis Acid and base was applied in determining the product formed from the reaction of the lewis acid and the lewis base.
According to G.N Lewis - an american who worked and elaborated more on the definition of acids and bases. He defined an acid as an electron pair acceptor and a base as an electron pair donors.
One of the application of lewis theory is in the reaction to test for the presence of copper(ii) ions by the addition of ammonia to form a clear blue solution of tetraammine.
The reactions of the lewis acid to each of the base is as shown in the attached file.
Answer : The mass of lead in 139 g of is, 86.9 grams.
Explanation : Given,
Mass of = 139 g
Molar mass of = 331.2 g/mol
Molar mass of Pb = 207.2 g/mol
Now we have to calculate the mass of lead.
As, 331.2 g of has 207.2 g of lead
So, 139 g of has of lead
Thus, the mass of lead in 139 g of is, 86.9 grams.
Answer:
C
Explanation:
I believe the answer is C.
One lithium (Li) atom can combine with one fluorine (F) atom. Together, they make the formula LiF. Fluorine has seven electrons of it's own. Lithium gives up its one electron to make both atoms happy. So the fluorine atom has eight electrons, and a filled outer shell.
An image is attached for reference.
Answer:
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