Answer: It is caused by the tendency of some atoms in molecules to attract electrons more than their accompanying atom.
Ans
the mantle
Explanation:
Answer:
molar mass or AMU
N(Ca)=3×N(Ca₃(PO₄)₂)=
=3×2.3×10²³=6.9×10²³
6.02×10²³→40g
6.9×10²³→Xg
m(Ca)=X≈45.85g
you would be trapped in the gravitational pull of a black hole
there is a black hole in the center of the galacy
