Question

ভৌত ও রাসায়নিক পদার্থের মধ্যে পার্থক্য কি?
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Answer 1

Answer:

substance composed of quantum particle(s)/field(s), such as matter and/or radiation; that of which objects/systems are composed; physical stuff that can be considered concrete (not strictly abstract) substance (physics) physically real stuff.

A chemical substance is a form of matter having constant chemical composition and characteristic properties. ... Chemical substances can be simple substances, chemical compounds, or alloys. Chemical elements may or may not be included in the definition, depending on expert viewpoint.

Answer 2

Answer:

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