Jumapili, 10 Septemba 2017

TUNDU LISSU AKIONGEA LIVE TOKA CHOMBA ALICHOLAZWA KENYA MSIKILIZE HAPA

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Hakuna maoni:

Chapisha Maoni

Jisajili kwenye: Chapisha Maoni (Atom)

INTRODUCTION TO CHEMISTRY

What is chemistry? Chemistry  is a branch of science which deals with composition, decomposition and properties of matter.  Or It is...