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a fost răspuns

Completeaza ecuatiile reactiilor: a) H2S+NaOH-->? +?
b) Na2S+ZnCl2-->?ZnS+?
c) AgNO3+H2-->Ag2S+?
d)H2S+Pb(NO3)2-->PbS+?
e)H2S+CuSO4-->CuS+?
f)Na2S+FeSO4--->FeS+?

Răspuns :

BugsBunny101000
a) H2S + 2 NaOH => Na2S + 2 H2O
b) Na2S + ZnCl2 => 2 NaCl + ZnS
c) 2 AgNO3 + H2S => Ag2S + 2 HNO3
d) H2S + Pb(NO3)2 => PbS + 2 HNO3
e) H2S + CuSO4 => CuS + H2SO4
f) Na2S + FeSO4 => Na2SO4 + FeS

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