Shale is a sedimentary rock made of clay so that should be the answer but im not sure if it's easily broken, nonporous or flaky
Do you mean valence electrons? I think it’s 7 I’m not sure though it’s been a while
Answer: multiplying the number of moles of the sample by avagadro's number
Explanation: According to Avogadro's law, 1 mole atoms of a substance consists of avogadro's number of atoms and weighs equal to its molecular mass.
Thus 1 mole atom of a substance has =
atoms
x moles atom of a substance has =
=
atoms
Dividing the mass of the sample by its molar mass gives us the number of moles.