Question

. (a) Define chromatography and give its one application.

(b) Give two points of differences between an element and a compound​

Answer 1

Explanation:

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Answer 2

Answer:

Define chromatography and give its one application. Answer: Chromatography is a technique used for the separation of a mixture of solutes brought about by distribution of dissolved material between two immiscible phases, one of which is mobile phase and the other part is stationary phase.

A compound contains atoms of different elements chemically combined together in a fixed ratio. An element is a pure chemical substance made of same type of atom. ... Compounds contain different elements in a fixed ratio arranged in a defined manner through chemical bonds.