If the ph of a solution is decreased from 9 to 8, it means that the concentration of if the ph of a solution is decreased from 9 to 8, it means that the concentration of h has increased tenfold (10x) compared to what it was at ph 9 h has decreased to one-tenth (1/10) what it was at ph 9 oh- has increased tenfold (10x) compared to what it was at ph 9 h has doubled compared to what it was at ph 9

Explanation:

We know that the relation between pH and concentration of hydrogen ions is as follows.

              pH =

or,          pH =

As, pH is inversely proportional to the concentration of hydrogen ion. So, a decrease in the pH value will lead to an increase in tenfold (10X) compared to what it was at pH 9.

Thus, we can conclude that if the pH of a solution is decreased from 9 to 8, it means that the concentration of H has increased tenfold (10X) compared to what it was at pH 9.

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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what are the two models

explanation: