SS2 Accounting – Depreciation and Fixed Assets 2

SS1 Chemistry – Elements, Symbols, and Equations

CONTENT ELEMENTS AND SYMBOLS CLASSIFICATION OF ELEMENTS VALENCY   ELEMENTS AND SYMBOLS An element is a substance that cannot be split into simpler units by ordinary chemical processes. There are

SS2 Chemistry – Saturated Hydrocarbon (Alkanes)

ALKANES CONTENT IUPAC Nomenclature Preparation, Properties and Uses.   The alkanes are aliphatic hydrocarbons. Their general molecular formula is CnH2n+2. Hence  For n=1 CH4 Methane        n=2 C2H6 Ethane        n=3 C3H8