The answer I would choose is the third one
Atomic mass Cu = 63.546 a.m.u
63.546 g ---------------- 6.02x10²³ atoms
22 g --------------------- ??
22 x (6.02x10²³ ) / 63.546 => 2.08x10²³ atoms
hope this helps!
Answer:
Becuase they can go through mountains and hills, they curve of of those.
56.0774 g/mol just took the test
