<span>C6-H12-O6+Cu(OH)2=C6-H10-06-Cu+2H2O.</span>
K2O + SO2 = K2SO3
3CuCl2 + 2K3PO4 = Cu3(PO4)2 + 6 KCl
CuCl2 + 2KOH = Cu(OH)2 + 2KCl
1)CaCO3+2HCl=<span>CaCl2 + H2O+CO2
2)</span><span>Ca(HCO3)2 + HCl = CaCl2 + CO2 + H2O</span>
а-2
Ca +2 NaOH=Ca(OH)2+2Na
<span>Ca + 2H2O=Ca(OH)2 +H2</span>
<span>2Ca+O2=2CaOб</span>
б-3
<span><span>KOH +NH4Cl=KCl+NH3+H2O</span></span>
<span><span><span>6KOH +P2O5=2K3PO4+3H2O</span></span></span>
<span><span><span><span>2KOH +CrO3=<span>K2CrO3+Н2O</span></span></span></span></span>
<span><span><span><span><span>в-2</span></span></span></span></span>
<span><span><span><span><span><span>SO2 +2NaOH=Na2SO3+H2O</span></span></span></span></span></span>
<span><span><span><span><span><span><span>SO2 +H2O=H2SO3</span></span></span></span></span></span></span>
<span>SO2 +O2=2SO3</span>
<span>г-5</span>
<span><span><span> ZnS + O2 = Zn+SO2</span></span></span>
<span><span><span><span> ZnS +2HСl=ZnСl2+H2S(газ)</span></span></span></span>
<span><span><span><span><span> ZnS + 2HNO3=Zn(NO3)2+H2S(газ)</span></span></span></span></span>
1,4-дибромбутен
<span>CH2Br – CH = CH – CH2Br</span>
