Her behavior has been reinforced (i.e. strengthened). Reinforcement can be external or internal and can be positive or negative. If a child wants approval from parents or peers, this approval is an external reinforcement, but feeling happy about being approved of is an internal reinforcement.
It remained to define the unit of amount of substance by fixing the corresponding mass of carbon 12; by international agreement, this mass has been fixed at 0.012 kg, and the unit of the quantity amount of substance was given the name mole (symbol mol).
exists and is an alternate of. Merge this question into. Split and merge into it. Answered by The Community. Making the world better, one answer at a time. A mole is basically an amount of something. In chemistry, a mole is known as a chemical mole. To figure out the weight of a mole, you figure out the molar mass.