Answer: The last one
Explanation: because Im in the 8th grade and I did this in the 6th
GIVE BRAINLEIST LIKE U PROMISED
Atomic mass Nickel ( Ni) = 58.69 a.m.u
1 mole ------------- 58.69 g
2.63 moles -------- ??
2.63 x 58.69 / 1 => 154.3547 g
1 g ------------- 1000 mg
154.3547 g ---- ??
154.3547 x 1000 / 1
=> 154,354.7 mg
Chemical changes are considered unseen because they occur at the atomic level, changing the actual structure of the thing.
Answer:
The correct answer is False
