Помогите пожалуйста!!! H2SO4+Hg=
H2SO4+Al=
H2SO4+MgCO3=
H2SO4+Cu(OH)=
H2SO4+NH3=
H2SO4+Al2O3=
H2SO4+S=
H2SO4+Na=
H2SO4+Cl2=
H2SO4+AgNO3=
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