Answer:
1 mole of iron =6.023×10^23 particles
1 particles of iron=1/6.023×10^23 mole
7.46×10^25 particles =1/6.023×10^23×7.46×10^25
=1.238×10^48 mole is a required answer.
I’m so sorry explain it more
Raise the temperature I believe so that the substance can disperse better and dissolve.
B. decreases, because the speed/velocity is decreasing, as the kinetic energy is.