Answer:
in my opinion find some stuff to help u with it test if you are aloud to bring in a revision boom into your test and get a good night sleep if you can and try not to get stressed about it
Two electron pairs is the answer
I am pretty sure nitrogen would be the solvent because solvents are generally the larger amount
Answer:
46.784886 amu is the average atomic mass of titanium on that planet.
Explanation:
Fractional abundance of Ti-46 =72.000% = 0.72000
Atomic mass of Ti-46 = 45.95263 amu
Fractional abundance of Ti-48 =14.300% = 0.14300
Atomic mass of Ti-48 = 47.94795 amu
Fractional abundance of Ti-50 =13.700% = 0.13700
Atomic mass of Ti-50 = 49.94479 amu

Average atomic mass of titanium atom:

46.784886 amu is the average atomic mass of titanium on that planet.