H2=hcl=h2=h2o=na2o=X=na2so4 помогите плз!

Question

H2=hcl=h2=h2o=na2o=X=na2so4 помогите плз!

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Answer 1

H2+Cl2=2HCl
Мg+2HCl=MgCl2+H2
2H2+O2=2H2O
H2O+Na2O=2NaOH
2NaOH+H2SO4=Na2SO4+2H2O