Al2O3+H2= P2O5+H2= HGO+H2= PbO+H2= СРОЧНО ДАЮ 30 БАЛЛОВ!

Question

Al2O3+H2=
P2O5+H2=
HGO+H2=
PbO+H2=
СРОЧНО ДАЮ 30 БАЛЛОВ!

Answer 1

Al2O3+3H2=2Al+3H2O 
P2O5+3H2O=2H3PO4
HgO + H2 = Hg + H2O
PbO + H2 = Pb + H2O