1. h2so4 (разб) + pb= 2. h2so4 + fe2o3= решите

Question

Химия: 1. h2so4 (разб) + pb= 2. h2so4 + fe2o3= решите

luzgina11 · Accepted Answer

А)h2so4+ba(oh)2=baso4(осадок)+2h2o
2h+ +so4 2- + ba2+ +2oh- = baso4(осадок)+2h2o

3h2so4+2al(oh)3=al2(so4)3(осадок)+6h2o
6h+ +3so4 2- +2al(oh)3 = 2al 3+ +3so4 2- + 6h2o
  6h+ +2al(oh)3 = 2al 3+ + 6h2o

h2so4+zn(oh)2=znso4+2h2o
2h+ +so4 2- + zn(oh)2 = zn2+ so42- +2h2o
2h+ + zn(oh)2 = zn2+ +2h2o

h2so4+2koh=k2so4+2h2o
2h+ +2oh- = 2h2o
h+ +oh- = h2o
б)2hno3+ cu(oh)2 = cu(no3)2 + 2h2o
2h+ +2no3- + cu(oh)2 =cu2+ 2no3- +2h2o
   2h+ + cu(oh)2 =cu2+ +2h2o

  hno3+ koh = kno3 + h2o
h+ +no3- + k+ +oh- =k+ no3- +h2o
  h+ +oh- = h2o

  2hno3+ mg(oh)2 = mg(no3)2 + 2h2o
2h+ +2no3- + mg(oh)2 =mg2+ 2no3- +2h2o
   2h+ + mg(oh)2 =mg2+ +2h2o

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