Answer:
May you post a picture for us to understand?
Alkaline Earth Metals and Alkali Reactive metals because they need more electrons to acquire octet.
Nitrogen Dioxide is the Answer. If any doubt leave a comment
We need to find the Ka value of HF. First, set up the balanced chemical equation:
HF ===> H+ + F-
The formula for the Ka value of an acid is
Ka = [concentration of products] / [concentration of reactants]
Ka = [H+] [F-} / [HF]
So if we are given the concentration of the products and reactants, we will be able to solve for the Ka value of HF.
D. there is one atom of sulfur and three atoms of oxygen
