Answer:
QUESTION:
Is plastic a pure substance or an impure substance?
ANSWER:
Pure and impure substances
Pure substances have a sharply defined (one temperature) melting or boiling point. Impure substances have a temperature range over which they melt or boil. Chromatography is the process of separating substances into their individual components.
Explanation:
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Answer:
B.) European
Explanation:
Europeans discovered Latin America around 1500's.
