2Na+2H2O=2NaOH+H2
Zn+H2SO4=ZnSO4+H2
Fe+2HCl=FeCL2+H2
Fe+CuCL2=Cu+FeCl2
2AgNO3+Cu=Cu(NO3)2+2Ag
Mg+H2SO4=MgSO4+H2
Ca+2H2O=Ca(OH)2+H2
2Al+6HCl=2AlCl3+3H2
Al+Cr2O3=Al2O3+Cr
Fe3O4+4CO=3Fe+4CO
NaOH+HCl=NaCl+H2O
BaCl2+H2SO4=BaSO4+2HCl
Ca(OH)2+Na2CO3=CaCO3+2NaOH
KOH+HNO3=KNO3+H2O
AlCl3+3NaOH=Al(OH)3+3NaCl
CuCl2+2NaOh=Cu(OH)2+2NaCl
AgNO3+KCl=AgCl+KNO3
2H3PO4+3Ca(OH)2=Ca3(PO4)2+6H2O
KI+AgNO3=AgI+KNO3
Mg(OH)2+H2SO4=MgSO4+2H2O
Cr2(SO4)3+6NaOН(разб.)=3Na2SO4+2Cr(OH)3 ; Cr(OH)3+2NaOH(тв.)[сплавление]=NaCrO2+2H2O; 2NaCrO2+3H2O2+2NaOH=2Na2CrO4+4H2O ; 2Cr(OH)3[t]=Cr2O3+3H2O ; Cr2O3+2NaOH[t=400-500]=2NaCrO2+H2O.
6C6H5OH + FeCl3 -> [Fe(C6H5OH)6]Cl3
Ответ: в - хлорид железа (III)
Прошу вас.
<span>CaCl2 + H2SO4 = CaSO4 + 2 HCl
</span>
2H(+) + SO4(2−) + Ca(2+) + 2Cl(−) = 2H(+) + 2Cl(− )+ CaSO4 <span>
</span><span>SO4(2−) + Ca(2+) =<span> CaSO4
</span></span>NaOH + HCl = H2O + NaCl
Na(+) + OH(-) + H(+) + Cl(-) = Na(+) + Cl(-) + H2O <span>
OH(-) +
H(+) = H2O</span>
32=m/0,166*10^-23=> 5,32*10^-23(г)=m