Substance is the correct spelling. It is the real and physical matter that a thing or person consists of and that has a solid and tangible presence. It is a particular type of matter that has uniform properties.
when can we say that a subtance is homogenous
Water.
There will be new subtance formed
Homogeneous. The parts from which cement is made from are indiscernible.
The wire and the dry cell are combined into one, therefore it forms a new subtance.
substance
Diamond.
Milk is a substance. Everything is.
Osmium
a liquid
involves a change in the organinal subtance.
when can we say that a subtance is homogenous
Diamond [Allotrope of Carbon]
Diamond [Allotrope of Carbon]
A Substance is a thing or some materials
Water.
Pure water has a pH of 7.0.