Density is mass per unit volume
2.4=8.5/v
V=8.5/2.4
V=3.54
Answer:
A-) 8 Atoms
B-) 6 Atoms
C-) 16 Atoms
D-) 24 Atoms
Explanation:
A) Na (1 Atom) C2 (2 Atoms) H (1 Atom)O4 (4 Atoms)
1 + 2 + 1 + 4 = <em>8 Atoms</em>
B) H (1 Atom) 2F( 2 Atoms) 2B (2 Atoms) Li (1 Atom)
1 + 2 + 2 + 1 = <em>6 Atoms</em>
C) 2 He2 (2 Atoms) P (1 Atom) S1 (Atom) O4 (4 Atoms)
2 . ( 2 + 1 + 1 + 4 ) = 2 . 8 = <em>16 Atoms</em>
D) 3 He2 (2 Atoms) O4 (4 Atoms) P (1 Atom) H (1 Atom)
3 . (2 + 4 + 1 + 1 ) = 3 . 8 = <em>24 Atoms</em>
<em>It looks messy but I hope it will be understood.</em>
<em>If I have any inaccuracies please let me know.</em>
<em>Have a nice day and never stop questioning!</em>
I looked up the half life for nickel-63 and then used the half life formula which is No=Nt*e^(kt) so the final answer is 20000 years for 26g of nickel-63 to decay to 6.5g
Answer:
<h3>"Pearson correlation coefficient"</h3>
The correlation coefficient, denoted by r, tells us how closely data in a scatterplot fall along a straight line. The closer that the absolute value of r is to one, the better that the data are described by a linear equation. If r =1 or r = -1 then the data set is perfectly aligned.
<h3>Hope this is fine for you</h3>