Acids and Bases
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an acid?
Back
An acid is a substance that donates hydrogen ions (H+) in a solution, resulting in a pH less than 7.
2.
FLASHCARD QUESTION
Front
What is a base?
Back
A base is a substance that accepts hydrogen ions (H+) or donates hydroxide ions (OH-) in a solution, resulting in a pH greater than 7.
3.
FLASHCARD QUESTION
Front
What is pH?
Back
pH is a scale used to measure the acidity or basicity of a solution, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.
4.
FLASHCARD QUESTION
Front
What happens to pH when an acid is added to water?
Back
The pH decreases as the concentration of hydrogen ions (H+) increases.
5.
FLASHCARD QUESTION
Front
What happens to pH when a base is added to water?
Back
The pH increases as the concentration of hydroxide ions (OH-) increases.
6.
FLASHCARD QUESTION
Front
What is the pH range of strong acids?
Back
Strong acids typically have a pH closer to 0.
7.
FLASHCARD QUESTION
Front
What is the pH range of strong bases?
Back
Strong bases typically have a pH closer to 14.
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