Ere are two parts to a chemical equation. The reactants are the elements or compounds on the left side of the arrow (-->). The elements and compounds to the right of the arrow are the products.
A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture.
A heterogeneous mixture is a mixture in which the composition is not uniform throughout the mixture.
I think you forgot to attach the diagram along with the question. I am answering the question based on my research and knowledge. "Count the number of protons" is the one among the following choices given in the question by which the <span>atomic number of nitrogen be determined. The correct option among all the options that are given in the question is the second option or option "B".</span>
The answer to this item is the first choice, MOLECULES. The molecules are the smallest particles of both the compounds and even the biatomic elements. They are made up of atoms that are being held together through chemical bonds of different types depending on the type of atoms that shared the electrons.
Ionic bonds hold NaCl together
