Acids and Bases
Flashcard
•
Chemistry
•
10th Grade
•
Practice Problem
•
Easy
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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 the characteristic taste of acids?
Back
Acids typically taste sour.
5.
FLASHCARD QUESTION
Front
What color does litmus paper turn in the presence of an acid?
Back
Litmus paper turns red in the presence of an acid.
6.
FLASHCARD QUESTION
Front
What color does litmus paper turn in the presence of a base?
Back
Litmus paper turns blue in the presence of a base.
7.
FLASHCARD QUESTION
Front
What is the strongest acid on the pH scale?
Back
The strongest acid has a pH close to 0.
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