IGCSE Chemistry: Introduction

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Wednesday, 15 May 2013

3.1 explain the terms homologous series, hydrocarbon, saturated, unsaturated, general formula and isomerism.

Compounds in the same homologous series have the same general formula and similar chemical properties.

A hydrocarbon is a compound made up only of hydrogen and carbon.

Saturated means something has bonded as many time as possible. Unsaturated means that more bonds can be made.

General formula is the most simplified the ratio of molecules can be.

Isomers have the same general formula but different structures.

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