They are about 4.5 billion years old. Hope this helps.
They can use the properties to test and come to some kind of conslusion about the object because in some way it's gotta correlate back to one of the different properties of matter.
Answer:
5.0 38 84.0 749.7 528.0 729.0 738.9 739.0
N = given mass/ molar mass.
n = number of moles
given mass = 2.47 g
molar mass = 197 g/mol
n = 2.47 / 197
n = 0.01253 moles.
I'm sure you wanted to ask more than this. Just put some comments in. I can do the same.
8
It’s 8 bc I said it was 8 ;)
