Acids and Bases
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
Wayground Content
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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 protons (H+) in a chemical reaction and has a pH less than 7.
2.
FLASHCARD QUESTION
Front
What is a base?
Back
A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a chemical reaction and has a pH greater than 7.
3.
FLASHCARD QUESTION
Front
What does pH measure?
Back
pH measures the concentration of hydrogen ions (H+) in a solution, indicating its acidity or basicity.
4.
FLASHCARD QUESTION
Front
What is the pH range for acids?
Back
The pH range for acids is from 0 to 6.9.
5.
FLASHCARD QUESTION
Front
What is the pH range for bases?
Back
The pH range for bases is from 7.1 to 14.
6.
FLASHCARD QUESTION
Front
What happens to blue litmus paper in an acid?
Back
Blue litmus paper turns red when it comes into contact with an acid.
7.
FLASHCARD QUESTION
Front
What happens to red litmus paper in a base?
Back
Red litmus paper turns blue when it comes into contact with a base.
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