The science of chemistry rests on two well-established principles: the conservation of matter and the conservation of energy.


Principles of Modern Chemistry (7th ed., 2012) - Ch. 1 : The Atom in Modern Chemistry


The science of chemistry rests on two well-established principles: the conservation of matter and the conservation of energy.

The science of chemistry rests on two well-established principles: the conservation of matter and the conservation of energy.

The science of chemistry rests on two well-established principles: the conservation of matter and the conservation of energy.

The science of chemistry rests on two well-established principles: the conservation of matter and the conservation of energy.