Question

Write the formula of compounds formed by

Hg and s
Pb and PO4
Al and SO4

Answer 1

Hg + S = HgS

3Pb + 2 PO4 = Pb3(PO4)2(S)

Al + H2SO4 = Al2(SO4)3 + SO2 + H2O

Answer 2

Answer:

Explanation:

Mg2+ and

PO4^3- . The charge of Mg which is 2 will interchange with PO4 's charge which is 3(because in compound formation,the negative sign is always ignored) to yield the compound Mg3(PO4)2 .Take care