What is meant by a substance?? Give its elaborated definition.
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Answer:
chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., without breaking chemical bonds. Wikipedia
Explanation:
Changing states without altering or changing the identity of the substance.
Mass.
Density.
Volume.
Boiling point.
Melting point.
Conductivity.
Heat capacity.
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