10FeS+36HNO3(разб)=10Fe(NO3)3+10S(стрелочка вверх)+3N2+18H2O
4Al+6O2=2Al2O3
n(Al2O3)=n(Al)*2/4=2*2/4=1моль
M(Al2O3)=27*2 + 16*3=102 г/моль
m(Al2O3)=102*1=102г
M(C3H8O3) = 92 g/mol
M(3O) = 48 g/mol
W(3O) = (48/92)*100 = 52.17%
BiCl₃ + H₂O = BiCl(OH)₂↓ + 2HCl.
Ba + Cl₂ = BaCl₂
BaSO₄ + 2HCl = BaCl₂ + H₂SO₄
BaO + 2HCl = BaCl₂ + H₂O
CuCl₂ + Ba = BaCl₂ + Cu
BaSO₃ + 2HCl = BaCl₂ + H₂O + SO₂
BaCO₃ + 2HCl = BaCl₂ + H₂O + CO₂
BaBr₂ + 2HCl = BaCl₂ + HBr
Ba(OH)₂+ 2HCl = BaCl₂ + 2H₂O
Ba(OH)₂ + MgCl₂ = BaCl₂ + Mg(OH)₂
Ba(OH)₂ + ZnCl₂ = BaCl₂ + Zn(OH)₂