1. The melting point of a pure substance is always higher and has a smaller range than the melting point of an impure substance of mixtures.
2. Components is the chemical composition of a mixture that can be defined as the distribution of the individual substances that constitute the mixture.
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Answer:
1. The melting point of a pure substance is always higher and has a smaller range than the melting point of an impure substance of mixtures.
2. Components is the chemical composition of a mixture that can be defined as the distribution of the individual substances that constitute the mixture.