Superficial destruction of a surface by friction, pressure, ulceration, or trauma. The wearing away of a tooth by chemical or abrasive action. Also called odontolysis. erosion. The gradual wearing away of land surface materials, especially rocks, sediments, and soils, by the action of water, wind, or a glacier.
In chemistry, the molar mass M is a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance. The base SI unit for molar mass is kg / mol.
Explain how molar mass relates the mass of. an atom to the mass of a mole of atoms. Molar mass is the mass in grams of one mole of. any pure substance. 25. Describe the steps used to convert the mass. of an element to the number of atoms of the.