no they are not
Isotopes have a different number of neutrons, and neutrons have weight-on a molecular level.
on a molecular level they are different. the polymers they are made up of have different shapes
Molecular genetics is the field of Biology and genetics that studies the structure and function of genes at a molecular level.
The greenhouse effect is caused on a molecular level by the greenhouse gases combing, thus forming the greenhouse effect and that's what causes it to be on a molecular level.
The cell was at a molecular level.
By definition, a homogeneous mixture is a substance that is uniform at the molecular level. An example of this is salt water.
A mixture contain two or more types of molecules.
A solution is a type of mixture at the molecular/atomic level. Mixtures that are not solutions usually contain particles visible at either the microscopic or macroscopic level.
Similarities among organisms at the molecular level due to a shared ancestry. Learn more at 23andme.com.
Pertaining to, connected with, produced by, or consisting of, molecules; as, molecular forces; molecular groups of atoms, etc.
These properties are due to the association of water molecules by hydrogen bonds.
The electron microscope can show a picture of the molecular level. Molecular bonds are quite strong.