Question

if you have 2.00 moles each, of 2 different substances then which are true about the 2 samples?
a: same mass
b: same weight
c: same # of particles
d: b and c

Answer 1

My guess is
c: same # of particles

Answer 2

Same mass / weight?! -> not really...
same no. of particles? Yes!~
Since for one mole of substance, no. of molecules = 6.02x10^23
Since mole => same no. of molecules

Answer 3

yeah thats Avogadro