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2K+2HCl--->2KCl+H2
K2O+2HCl--->2KCl+H2O
b) Ba(OH)2+H2S--->BaS+2H2O
Ba+H2S--->BaS+H2
BaO+H2S--->BaS+H2O
c) Mg(OH)2+2HNO3--->Mg(NO3)2+2H2O
Mg+2HNO3--->Mg(NO3)2+H2
MgO+2HNO3--->Mg(NO3)2+H2O
d) KOH+HBr--->KBr+H2O
2K+2HBr--->2KBr+H2
K2O+2HBr--->2KBr+H2O
e) Mg(OH)2+H2SO4--->MgSO4+2H2O
Mg+H2SO4--->MgSO4+H2
MgO+H2SO4--->MgSO4+H2O
f) 3NaOH+H3PO4--->Na3PO4+3H2O
6Na+2H3PO4--->2Na3PO4+3H2
3Na2O+2H3PO4--->2Na3PO4+3H2O
g) NaOH+HCl--->NaCl+H2O
2Na+2HCl--->2NaCl+H2
Na2O+2HCl--->2NaCl+H2O
h) 2KOH+H2SO4--->K2SO4+2H2O
2K+H2SO4--->K2SO4+H2
K2O+H2SO4--->K2SO4+H2O
i) Ca(OH)2+2HNO3--->Ca(NO3)2+2H2O
Ca+2HNO3--->Ca(NO3)2+H2
CaO+2HNO3--->Ca(NO3)2+H2O
2. a) Ca(OH)2+2HCl→CaCl2+2H2O
b) 2NH3*H2O+H2S→(NH4)2S+2H2O
c) Mg(OH)2+2HNO3→Mg(NO3)2+2H2O
d) Ca(OH)2+H2SO4→CaSO4+2H2O
e) 3NaOH+H3PO4→Na3PO4+3H2O
f) 3Ba(OH)2+2H3PO4→Ba3(PO4)2+6H2O
g) 2KOH+H2CO3→K2CO3+2H2O