Acids and Bases
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Easy
Standards-aligned
Wayground Content
Used 2+ times
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the pH scale?
Back
The pH scale measures how acidic or basic a substance is, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.
2.
FLASHCARD QUESTION
Front
What is an acid?
Back
An acid is a substance that donates protons (H+) in a solution and has a pH less than 7.
3.
FLASHCARD QUESTION
Front
What is a base?
Back
A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution and has a pH greater than 7.
4.
FLASHCARD QUESTION
Front
What is a neutral substance?
Back
A neutral substance has a pH of 7, meaning it is neither acidic nor basic, like pure water.
5.
FLASHCARD QUESTION
Front
What happens to litmus paper in an acid?
Back
Acids turn blue litmus paper red.
6.
FLASHCARD QUESTION
Front
What happens to litmus paper in a base?
Back
Bases turn red litmus paper blue.
7.
FLASHCARD QUESTION
Front
What is the pH range of strong acids?
Back
The pH range of strong acids is typically from 0 to 3.
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