Răspuns :
2Mg+O2-->2MgH2+I2-->2HI3NaOH+AlCl3-->Al(OH)3 o sageata in jos+3NaCl
2NaHCO3-->Na2CO3 o sageata in sus+2H2O
Fe+2HCl-->FeCl2+H2 o sageata in sus
KOH+H3PO4-->K3PO4+H2O
2CaO+2H2O-->2Ca(OH)2
2NaHCO3-->Na2CO3 o sageata in sus+2H2O
Fe+2HCl-->FeCl2+H2 o sageata in sus
KOH+H3PO4-->K3PO4+H2O
2CaO+2H2O-->2Ca(OH)2