Complete the reaction equations a) ZnS + HCL → b) HNO3 + BaO → c) Na3PO4 + AgNO3 → d) Mg (OH) 2 + H2SO4 →

a) ZnS + 2HCI = ZnCI2 + H2S – molecular equation of the reaction;
ZnS + 2H (+) + 2CI (-) = Zn (2+) + 2CI (-) + H2S – complete ionic equation of the reaction;
ZnS + 2H (+) = Zn (2+) + H2S is an abbreviated ionic reaction equation.
b) 2HNO3 + BaO = Ba (NO3) 2 + H2O – molecular equation of the reaction;
2H (+) + 2NO3 (-) + BaO = Ba (2+) + 2NO3 + H2O – complete ionic equation of the reaction;
2H (+) + BaO = Ba (2+) + H2O is an abbreviated ionic reaction equation.
c) Na3PO4 + 3AgNO3 = 3NaNO3 + Ag3PO4 – the molecular equation of the reaction;
3Na (+) + PO4 (3-) + 3Ag (+) + 3NO3 (-) = 3Na (+) + 3NO3 (-) + Ag3PO4 – complete ionic equation of the reaction;
PO4 (3-) + 3Ag (+) = Ag3PO4 – abbreviated ionic reaction equation.
d) Mg (OH) 2 + H2SO4 = MgSO4 + 2H2O – molecular equation of the reaction;
Mg (OH) 2 + 2H (+) + SO4 (2-) = Mg (2+) + SO4 (2-) + 2H2O – complete ionic reaction equation;
Mg (OH) 2 + 2H (+) = Mg (2+) + 2H2O is an abbreviated ionic reaction equation.
According to the requirement of the problem, reactions b and d proceed with the formation of water.



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