AP BIOLOGY

BIOCHEMISTRY

PH

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An acid has a pH
A
higher than 7
B
lower than 7
C
7
D
greater than 14
Explanation: 

Detailed explanation-1: -pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic.

Detailed explanation-2: -Answer and Explanation: If a substance has a pH that is greater than 7, it is alkaline.

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