1. BaO + H2O = Ba(OH)2
2. CO2 + H2O = H2CO3
3. Fe2O3 + 3H2O = 2Fe(OH)3
4. CuO + H2O = Cu(OH)2
5. Na2O + H2O = 2NaOH
6. K2O + H2O = 2KOH
7. P2O5 + 3H2O = 2H3PO4
1)56*2+48 = 112+48=160
2)12*4+32+64=48+32+64= 134
3) 27*2+48=54+48=102
1. BaO + H2O = Ba(OH)2
2. CO2 + H2O = H2CO3
3. Fe2O3 + 3H2O = 2Fe(OH)3
4. CuO + H2O = Cu(OH)2
5. Na2O + H2O = 2NaOH
6. K2O + H2O = 2KOH
7. P2O5 + 3H2O = 2H3PO4
1)56*2+48 = 112+48=160
2)12*4+32+64=48+32+64= 134
3) 27*2+48=54+48=102