Q54 of 252 Page 58

What is a mixture? Give two example of mixtures.

A mixture is a substance which consists of two or more elements or compounds not chemically combined together. Air and Gun powder are two mixtures.


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53

What are (i) metals (ii) non-metals, and (iii) metalloids? Give two examples each of metals, non-metals and metalloids.

 53

Classify the following into metals, non-metals and metalloids:

Silicon, Mercury, Diamond, Sulphur, Iodine, Germanium, Sodium, Carbon, Magnesium, Copper, Boron, Helium

 54

What is meant by (i) homogeneous mixtures, and (ii) heterogeneous mixtures? Give two examples of homogeneous mixtures and two of heterogeneous mixtures.

 54

What is the other name of homogenous mixtures?