Chris Chijioke Posts - TopicsExpress

Chlorine is the most important element of a family of very
Chlorine is the most important element of a family of very reactive non-metals known as the halogens(salt formers). The halogens are found in Group 7 ...

Petroleum engineering is a field of engineering concerned with the
Petroleum engineering is a field of engineering concerned with the activities related to the production of hydrocarbons, which can be either crude oil...

Chemistry is a branch of physical science that studies the
Chemistry is a branch of physical science that studies the composition, structure, properties and change of matter.Chemistry is chiefly concerned with...