HCL +Na2S=2 HCL +MgCO3=3ALCL3+ Pb (No3)2= ПОМОГИТЕ

Question

HCL +Na2S=
2 HCL +MgCO3=
3ALCL3+ Pb (No3)2= ПОМОГИТЕ

Answer 1

HCl+Na2S= H2S+NaCl
2HCl+MgCO3=H2CO3+MgCl2
2AlCl3+3Pb(NO3)2= 2Al(NO3)3+3PbCl2

Answer 2

2HCl + Na₂S = 2NaCl + H₂S(газ)
2HCl + MgCO₃ = MgCL₂ + H₂O + CO₂
2AlCl₃ + 3Pb(NO₃)₂ = 2Al(NO₃)₃ + 3PbCl₂(осадок)