Answer:
is this rearrange words then it would be
she did not phone me at the weekend
I hope it helps
Stoich questions...
1) convert the grams of Au to moles
(33.5g)/(196.7g/mol)=___x___
2)find how many atoms are in that many moles by multiplying it by avogadro's number.
x(moles of Au)*(6.02*10^23)=?
3)now that you have found the number of atoms of gold, convert it to grams of aluminum by multiplying it by Avogadro's number and multiplying it by the atomic mass of aluminum.
( ? )(6.02*10^23)(26.98g/mol)= (mass of Al)
I think the answer is <span>PCl5 + 4H2O → 5HCl + H3PO4
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3 millimeters is the rock
