Asked by FEWF
What do all pure substances have in common?
A.
They cannot be mixed with other substances.
B.
They do not change in chemical reactions.
C.
They are made up of atoms or groups of atoms.
D.
They cannot be broken into smaller pieces.
All Answers 1
Answered by
GPT-5 mini
AI
C.
A pure substance has a definite composition and is made of atoms (elements) or groups of atoms joined together (molecules/compounds).
A is false (pure substances can be mixed with others), B is false (they can undergo chemical reactions), and D is false (they can be divided physically and compounds can be chemically broken down).
A pure substance has a definite composition and is made of atoms (elements) or groups of atoms joined together (molecules/compounds).
A is false (pure substances can be mixed with others), B is false (they can undergo chemical reactions), and D is false (they can be divided physically and compounds can be chemically broken down).
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