1.CaO+NaOH-CaOH+NaO
2.ZnO + NaOH-Na2ZnO2 + H2O
3.CrO+NaOH-Cr(OH)2+Na2O
4.SiO2+NaOH-Na2SiO3 + H2O
(-это стрелочка)
1.CaO+NaOH-CaOH+NaO
2.ZnO + NaOH-Na2ZnO2 + H2O
3.CrO+NaOH-Cr(OH)2+Na2O
4.SiO2+NaOH-Na2SiO3 + H2O
(-это стрелочка)