18.8 mol= mass of He X atomic mass
18.8 mol= mass of He X 4 g mol^-1
mass of He= (18.8 X 4)g = 75.2 g
It helps geologist know when the world is shifting and when the over lap how new things in earth form like mountains how they form when plate tectonics move or shift
A) 3AgNO3 + GaCl3 --> 3AgCl + Ga(NO3)3
b) 3Ag(+) + 3NO3(-) + Ga(3+) + 3Cl(-) --> 3AgCl(s) + Ga(3+) + 3NO3(-)
c) 3Ag(+) + 3Cl(-) --> 3AgCl(s)
d) Ga(3+), 3NO3(-)
<span>Now, since the compound NaCl is made of sodium and chlorine, the molar mass of NaCl can be calculated only after its atomic weight is known from the table. Individual atoms of sodium and chlorine have an atomic mass of 22.98976 g/mol and 35.453 g/mol respectively.
BRAINLIEST???</span>
