Classify the following into elements, compounds and mixtures. (a) Sodium (b) Soil (c) Sugar solution (d) Silver (e) Calcium carbonate (f) Tin (g) Silicon (h) Coal (i) Air (j) Soap (k) Methane (l) Carbon dioxide (m) Blood.

Answer:

Elements – Elements constitute the simplest chemical substances in which all the atoms are exactly the same.

Compounds – Compounds are chemical substances made up of two or more elements that are chemically bound together in a fixed ratio.

Mixtures – In chemistry, when two or more substances mix with each other without participating in a chemical change, the resulting substance is called a Mixture.

Elements Compounds Mixture
Sodium Calcium carbonate Soil
Silver Carbon dioxide Sugar solution
Tin Methane Coal
Silicon   Air
    Blood
    Soap

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