
Unit 2 Matter Review Part 1 (Honors)
Flashcard
•
Science
•
9th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a chemical property?
Back
A characteristic of a substance that can only be observed during a chemical reaction, such as reactivity with other chemicals.
2.
FLASHCARD QUESTION
Front
What is the most common state of matter in the universe?
Back
Plasma.
3.
FLASHCARD QUESTION
Front
How does increasing the surface area of a solid affect the speed of dissolving?
Back
It increases the speed of dissolving.
4.
FLASHCARD QUESTION
Front
What is another name for a homogeneous mixture?
Back
Solution.
5.
FLASHCARD QUESTION
Front
In which phase of matter are the molecules of the substance farthest apart?
Back
Gas.
6.
FLASHCARD QUESTION
Front
What is a physical property?
Back
A characteristic of a substance that can be observed without changing its chemical composition, such as color, density, or melting point.
7.
FLASHCARD QUESTION
Front
What is the difference between a physical change and a chemical change?
Back
A physical change alters the form or appearance of a substance without changing its composition, while a chemical change results in the formation of new substances.
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