pH Scale
Presentation
•
Biology
•
9th - 12th Grade
•
Hard
James Gonzalez
FREE Resource
3 Slides • 4 Questions
1
2
Substances with a pH above 7 are called Bases. Substances with a pH of 7 are Neutral. Water is the only neutral substance.
Substances with a pH below 7 are called Acids.
3
More of pH Scale:
The pH scale actually measure the amount of hydrogen ions (H+) that are present in a solution. pH could stand for "The Power of Hydrogen". The lower the pH value, the greater the amount of hydrogen ions (H+) present in the solution.
4
Multiple Choice
Substances with a pH below 7 are..
acids
bases
neutral
5
Multiple Choice
Substances with a pH above 7 are called..
acids
bases
neutral
hydrogens
6
Multiple Choice
Substances with a pH of 7 are..
acids
bases
hydrogens
neutral
7
Multiple Choice
The lower the pH value, the __ the amount of hydrogen ions are present in the solution.
lower
more neutral
greater
Show answer
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