So we know the number of moles of each compound. If we need to know the concentration we must know the number of moles that the compounds react with...
Na3PO4*12H2O + BaCl2*2H2O = Ba3(PO4)2 + NaCl + H2O
add barium chloride to your Na3PO4.12H2O a white precipitate of Ba3(PO4)2 will be formed wrt salt(NaCl) and water(H20) if Na3PO4.12H2O. will be there.
5-chloro-2-pentyne. The chain must be numbered starting with the end nearest the triple bond.
answer:
i am pretty sure you use cross charges for this.
so i think it is the third choice.
