Сa(OH)2+CO2= CuO+H3PO4= NaOH+Mg= HNO3+Ca(OH)2= Mg+H3PO4=

Question

Сa(OH)2+CO2=
CuO+H3PO4=
NaOH+Mg=
HNO3+Ca(OH)2=
Mg+H3PO4=

Answer 1

Ca(OH)2 + H2
2Fe + 3Cl2 = 2FeCl3
Fe + 2HCl = FeCl2 + H2