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Answer:
b) +2 and +3.
Explanation:
Hello,
In this case, given the molecular formulas:
And:
We can relate the subscripts with the oxidation states by knowing that they are crossed when the compound is formed, for that reason, we notice that oxygen oxidation state should be -2 for both cases and the oxidation state of X in the first formula must be +2 since both X and O has one as their subscript as they were simplified:
Moreover, for the second case the oxidation state of X should be +3 in order to obtain 3 as the subscript of oxygen:
Thus, answer is b)+2 and +3
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Explanation:
the pH of the solution defined as negatuve logarithm of ion concentration.
1. Hydrogen ion concentration when pH of the solution is 11.
..(1)
At pH = 11, the concentration of ions is
.
2. Hydrogen ion concentration when the pH of the solution is 6.
..(2)
At pH = 6, the concentration of ions is
.
3. On dividing (1) by (2).
The ratio of hydrogen ions in solution of pH equal to 11 to the solution of pH equal to 6 is .
4. Difference between the ions at both pH:
This means that Hydrogen ions in a solution at pH = 7 has ions fewer than in a solution at a pH = 6