Answer:
82•355
Explanation:
1•655--87•3=82•355
the answer is 85.645cm
0.0123 M/s
1 mole : 6,022 * 10^23 = 4.5 moles : X
X = (6.022 * 10^23 * 4.5)/1 = 2.7099 * 10^24 atoms