Такая реакция не может пойти.
<span>FeCl3 + 3AgNO3 = Fe(NO3)3+3AgCl</span>
<span><span>Pb(NO3)2+K2S=PbS+2KNO3</span></span>
<span><span><span>Al2(SO4)3 + 3Ba(NO3)2 = 3BaSO4↓ + 2Al(NO3)3</span></span></span>
<span>3 CaCl2 + 2 Na3PO4 = 6 NaCl + 1 Ca3(PO4)2</span>
<span><span>Na2S + 2HCl = 2NaCl + H2S</span></span>
<span> (NH4)2SO4 + KOH =</span>
<span><span>K</span>2<span>CO</span>3<span> + H</span>2<span>SO</span>4<span> = K</span>2<span>SO</span>4<span> + H</span>2<span>O + CO</span>2</span>
Ba(HCO3)2 + H2SO4 =
<span>Al2O3 + KOH (избыток) =</span>
<span><span><span>SiO2 +4NaOH=Na4SiO4 + 2H2O</span></span></span>
<span><span><span><span> </span>NaHCO3<span> + </span>HCL<span> =NaCl+H2CO</span></span></span></span>
1. 2HCl + Zn = ZnCl2 + H2 2HCl + CaO = CaCl2 + H2O 2HCl + BaCO3 = BaCl2 + H2CO3 2HCl + Mg(OH)2 = MgCl2 + 2H2O 2. 2HNO3 + CuO = H2O + Cu(NO3)2 Fe(OH)2 + 2HCl = FeCl2 + 2H2O H2SO4 + Mg = MgSO4 + H2 H3PO4 + 3NaOH = Na3PO4 + 3H2O 2HCl + MgO = MgCl2 + H2O 2HNO3 + CaCO3 = H2CO3 + Ca(NO3)2 Zn + 2HBr = ZnBr2 + H2 3. Mg + 2HCl = MgCl2 + H2 Mg(0) + 2H(+1) + 2Cl(-1) = Mg(+2) + 2Cl(-1) + 2H(+1) BaO + 2HNO3 = Ba(NO3)2 + H2O BaO + 2H(+1) + 2NO3(-1) = Ba(2+) + 2NO3(-1) + H2O BaO + 2H = Ba + H2O 3Cu + 2H3PO4 = Cu3(PO4)2 + 3H2 3Cu(0) + 6H(+1) + 2PO4(3-) = Cu3(PO4)2 + 6H(+1) 3Cu + 2PO4 = Cu3(PO4)2 2KNO3 + H2SO4 = K2SO4 + 2HNO3 2K(+1) + 2NO3(-1) + 2H(+1) + SO4(-2) = 2K(+1) + SO4(-2) + 2H(+1) + 2NO3(-1) Fe(OH)2 + 2HNO3 = Fe(NO3)2 + H2O Fe(OH)2 + 2H(+1) + 2NO3(-1) = Fe(2+) + 2NO3(-1) + H2O Fe(OH)2 + 2H = Fe + H2O Na2S + 2HCl = 2NaCl + H2S 2Na(-1) + S(-2) + 2H(+1) + 2Cl(-1) = 2Na(+1) + 2H(+1) + S(-2)
2HCOOH + 2Na = 2HCOONa + H2↑