Class 9 Chemistry Is Matter Around Us Pure Compounds

Compounds

  • A compound is a substance made up of two or more elements chemically combined in a fixed proportion by mass.
  • For example: - H2O is a compound made up of two elements hydrogen and oxygen, chemically combined in a fixed proportion (1:8) by mass.
  • Note: - Compounds can be further divided into 3 classes: acids, bases and salts.

Class_9_Is_Matter_Around_Us_Pure_Matter_Salt

Salt

 

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