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A mole of any substance contains ___ particles.
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A mole of any substance contains ___ particles.

User Abintom
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One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions). The number 6.022 × 10²³ is known as Avogadro's number or Avogadro's constant.
User James Lemieux
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