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CBSE Class 9 Answered

What is meant by a substance ?
Asked by | 09 Jun, 2008, 11:11: AM
Expert Answer

Chemical substances (also sometimes referred to as a pure substances) are often defined as "any material with a definite chemical composition" in most introductory general chemistry textbooks. According to this definition a chemical substance can either be a pure chemical element or a pure chemical compound. However, there are exceptions to this definition, and a pure substance can also be defined as a form of matter  that has both definite composition and distinct properties.

Answered by | 18 Jun, 2008, 03:09: PM
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