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The study of matter and the changes that matter undergoes
Anything that has mass and occupies space.
Chemists classify matter as either a(n)___
substance or a mixture of substances.
- - a form of matter that has definite composition and distinct properties.
- - substances can be either elements or compounds
- - substances differ form one another in composition and may be identified by appearance, smell, taste, and other properties.
All substances can, in principle exist as ___
a solid, liquid, or gas.
solids and liquids are referred to collectively as the ___
____ have particles that are held closely together in an ordered fashion.
Particles in a(n)____ are close together but are not held rigidly in positin.
Particles in a(n)___ have significant seperation from each other and move freely
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