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Index
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Daily High School Practice
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Basic Chemistry
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Atoms, Molecules, Compounds and Mixtures
level: Atoms, Molecules, Compounds and Mixtures
Questions and Answers List
level questions: Atoms, Molecules, Compounds and Mixtures
Question
Answer
Atoms
The smallest parts of matter
Molecules
Contain at least two atoms chemically combined together in a simple ratio.
Compound
A substance which contains different elements combined in a simple ratio.
Mixture
A combination of compounds which can be separated by physical methods.