Use our easy to read table to find how many calories in bread and bread products, such as white bread, hamburger buns, pita bread and mountain bread calories per slice. When counting calories you need to know how many calories or kilojoules are in everything you eat. As bread is one of the staples of life, calories contained in bread make up a large percentage of your calorie intake. Therefore knowing the amount of calories or kj per slice is an important step to controlling weight.
A model of a water molecule. The definition of a molecule is the smallest amount of something, particularly of a chemical substance, that can exist on its own. An example of a molecule are two atoms of hydrogen. molecule. molecule.
Molecule. the smallest particle of a substance that can exhibit all the chemical properties of the substance. A molecule is composed of atoms (more precisely, of atomic nuclei, their surrounding inner electrons, and their outer valence electrons, which form a chemical bond). The inner electrons of atoms usually do not participate in the formation of such bonds. The molecular composition and structure of a given substance do not depend on the method of preparation used. In the case of monatomic molecules (for example, inert gases), the concepts of the molecule and the atom are congruent.