For example, Domino's Pizza, which has four outlets in New York, said its typical serving, which is two slices weighing a total of 5 1/4 ounces, has 344 calories and 9.5 grams of fat. Pizza Hut, a nationwide chain with outlets in New York City, said a 4.4-ounce slice has 253 calories and 9 grams of fat.
Buffer Definition: A buffer is a solution containing either a weak acid and its salt or a weak base and its salt, which is resistant to changes in pH.
Chemical bond. A chemical bond is an attraction between atoms. This attraction may be seen as the result of different behaviors of the outermost or valence electrons of atoms. These behaviors merge into each other seamlessly in various circumstances, so that there is no clear line to be drawn between them.