The spheres representing nitrogen and oxygen are different colors because they are distinct atoms.
<span>The
scientist thought that the atom was the smallest particle in the universe is
John Dalton. He established the atomic theory which
consists of five; elements are made of extremely small particles called atoms,
atoms of different element have different sizes, mass and physic – chemical
properties, atoms cannot be divided further, destroyed or created, atoms can
combine to form compounds and in chemical reaction, atoms can be combined,
separated or rearranged</span>
C. H20 is reduced
The first equation has h20 part of it, then the second part doesn't have the substance h20
There should be 22 figures .