Unit 1 - Matter
Flashcard
•
Chemistry
•
7th Grade
•
Practice Problem
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a colloid?
Back
A colloid is a mixture where tiny particles of one substance are evenly distributed throughout another substance, but they do not settle out. Examples include milk and fog.
2.
FLASHCARD QUESTION
Front
What is a solution?
Back
A solution is a homogeneous mixture where one substance (the solute) is completely dissolved in another substance (the solvent). An example is sugar water.
3.
FLASHCARD QUESTION
Front
What describes the particles in a solid?
Back
In a solid, particles are closely packed together and can only vibrate in place, which gives solids a definite shape and volume.
4.
FLASHCARD QUESTION
Front
What is a heterogeneous mixture?
Back
A heterogeneous mixture is a mixture where the components can be seen and are not uniformly distributed. An example is chunky spaghetti sauce.
5.
FLASHCARD QUESTION
Front
What is deposition in terms of matter?
Back
Deposition is the process where gas transforms directly into a solid without becoming a liquid first. An example is frost forming on a cold surface.
6.
FLASHCARD QUESTION
Front
What is a suspension?
Back
A suspension is a heterogeneous mixture where solid particles are dispersed in a liquid but can settle out over time. An example is muddy water.
7.
FLASHCARD QUESTION
Front
What is the difference between a homogeneous and heterogeneous mixture?
Back
A homogeneous mixture has a uniform composition throughout (like saltwater), while a heterogeneous mixture has distinct, separate components (like salad).
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