Answer:
choose the one with the least amount of electrons ex:iron
Explanation:
Answer:
Group 1A
Explanation:
The Alkali metals all end is S1. What period the element is in determines the 1st number. Example: : H ends 1s1
Answer:
,
Explanation:
pH is defined as the negative logarithm of the concentration of hydrogen ions.
Thus,
pH = - log [H⁺]
Strong acids dissociate completely and thus, 0.5 M of a solution of a strong acid yields a pH of 1.0 .
The expression of the pH of the calculation of weak acid is:-
Where, C is the concentration = 0.5 M
Given, pH = 4.0
So, for ,
pH = 4.0
<u>Hence, the acid is HOCl.</u>