4Al+3O2==2Al2O3
<span>Al2O3+6HCl==2AlCl3+3H2O </span>
0.2466=55/151+18n
n=4. MnSO4*4H20
Решение в фото.................
3KJ + Pb(NO₃)₂ = <span>2KNO₃ + </span>K[PbJ₃].
<span>1) 2NaCI + H2SО4 = Na2SО4 + 2HCI</span>
<span>2) Ca(OH)2 + BaSO4 = CaSO4 + Ba(OH)2</span>
<span>3) CuSiO3 + 2HNО3 = Cu(NО3)2 + H2SiO3</span>
<span>4)<span>AI(OH)3 + 3HCI = AICI3 + 3Н2О</span></span>