Answer:
C. You have two times the number of particles that are in 12 grams of carbon-12.
Step-by-step explanation:
Avogadro's number, 6.022 ×10^23, equals the number of particles in 12 grams of carbon-12.
This mean 1 mole of a substance will equals to the number of particles that are in 12 grams of carbon-12.
Therefore, 2 moles of a substance will equals to two times the number of particles that are in 12 grams of carbon-12.