1.na2sio3-h2sio3-sio2-k2sio3 2.ca-cao-ca(oh)2-cacl2 - вопрос №758020812323223222322 от Ника12040000 11.05.2021 16:45

Question

Химия: 1.na2sio3-h2sio3-sio2-k2sio3 2.ca-cao-ca(oh)2-cacl2 3.zn-zncl2-zn(oh)2-zno

Ника12040000 · Answer

1.Na₂SiO₃+2H₂O=H₂SiO₃ + 2NaOH;H₂SiO₃=SiO₂+H₂O;SiO₂+2KOH=K₂SiO₃+H₂O.2.2Ca+O₂=2CaO;CaO+H₂O=Ca(OH)₂;Ca(OH)₂+2HCl=CaCl+2H₂O.3.Zn+2Cl=ZnCl₂;ZnCl₂+2NaOH=Zn(OH)2+2NaCl;Zn(OH)₂=ZnO+H₂O....