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It is defined as the number of particles per mole of a substance. *

a. Molar ratio

b. Mole

c. Avogrado's number​

Respuesta :

Answer:

Avogadro's number

Explanation:

Avogadro's number

defined as the number of elementary particles (molecules, atoms, compounds, etc.) per mole of a substance. It is equal to 6.022×1023 mol-1 and is expressed as the symbol NA.

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