Acids and Bases
Flashcard
•
Science
•
8th Grade
•
Practice Problem
•
Hard
Standards-aligned
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10 questions
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1.
FLASHCARD QUESTION
Front
Identify the acids and bases from the following data:
Liquid 1: pH 6
Liquid 2: pH 3
Liquid 3: pH 12
Pure water: pH 7
Back
Liquid 3 is a base; Liquid 2 is an acid.
2.
FLASHCARD QUESTION
Front
How does citric acid affect a drink?
Back
It could add a sour flavor to the drink.
3.
FLASHCARD QUESTION
Front
Sofia needs to lower the pH of a solution to be closer to 5. She has droppers with pure water, concentrated acid, and concentrated base. How can she lower the pH?
Back
Add drops of the concentrated acid to the beaker.
4.
FLASHCARD QUESTION
Front
What test can the students perform to correctly and safely identify acids and bases?
Back
Litmus test
5.
FLASHCARD QUESTION
Front
What should Azami's mom add to her tomato juice to make it less acidic and more neutral? Options: Milk, Lemon juice
Back
Milk
6.
FLASHCARD QUESTION
Front
The pH scale is used to measure how acidic or basic something is. A pH value lower than 7 indicates a substance is ________, while a pH value higher than 7 is considered ________. Pure water is considered ________, with a pH of ________.
Back
acidic; basic; neutral; 7
7.
FLASHCARD QUESTION
Front
Which is an acid? Options: Turns blue litmus red, Turns red litmus blue, Has a pH of 11, Has a pH of 7
Back
Turns blue litmus red
Tags
NGSS.MS-PS1-2
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