Question

1. Give the comparative difference between followings:
I) Compounds and mixtures
ii) Homogeneous and heterogeneous mixtures
iii) Colloids and Suspension
iv) Metals and nonmetals
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Answer 1

Explanation:

Compounds and mixtures-Mixtures are composed of variable proportions of molecules and atoms. Compounds are homogeneous forms of matter. Their constituent elements (atoms and/or ions) are always present in fixed proportions (1:1 depicted here).

Homogeneous and heterogeneous mixtures-A homogeneous mixture has the same proportions of its components throughout in any given sample and is also referred to as a solution. Conversely, a heterogeneous mixture has components in which proportions vary throughout the sample

Colloids and Suspension-The particles are spread evenly throughout the dispersion medium, which can be a solid, liquid, or gas. Because the dispersed particles of a colloid are not as large as those of a suspension, they do not settle out upon standing.

Metals and nonmetals-Metals Non-metals

These are very hard except sodium These are soft except diamond

These are malleable and ductile These are brittle and can break down into pieces

These are shiny These are non-lustrous except iodine

Electropositive in nature Electronegative in nature.

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