
Matter
Flashcard
•
Chemistry
•
7th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is matter?
Back
Matter is anything that has mass and takes up space.
2.
FLASHCARD QUESTION
Front
What are the three states of matter?
Back
Solid, liquid, and gas.
3.
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.
4.
FLASHCARD QUESTION
Front
What is a base?
Back
A base is a substance that accepts protons (H+) in a chemical reaction and has a pH greater than 7.
5.
FLASHCARD QUESTION
Front
What is pH?
Back
pH is a scale used to measure how acidic or basic a substance is, ranging from 0 (acidic) to 14 (basic), with 7 being neutral.
6.
FLASHCARD QUESTION
Front
What happens when an acid and a base react?
Back
They react chemically to form a salt and water.
7.
FLASHCARD QUESTION
Front
What is a neutralization reaction?
Back
A neutralization reaction is a chemical reaction between an acid and a base that produces a salt and water.
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