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petova04
@petova04
July 2022
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помогите сделать реакцию обмена
1) Cu(OH2) + HNO3
2) ZnSO4+KOH
3) Li2S+H2SO4
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svetka1574
Cu(OH)2 + 2HNO3 -> Cu(NO3)2 + 2H2O
Cu(OH)2 + 2H(+) + 2NO3(-) -> Cu(+2) + 2NO3(-) + 2H2O
Cu(OH)2 + 2H(+) -> Cu(+2) + 2H2O
ZnSO4 + 2KOH -> Zn(OH)2 + K2SO4
Zn(+2) + SO4(-2) + 2K(+) + 2OH(-) -> Zn(OH)2 + 2K(+) + SO4(-2)
Zn(+2)+ 2OH(-) -> Zn(OH)2
Li2S + H2SO4 -> Li2SO4 + H2S
2Li(+) + S(-2) + 2H(+) + SO4(-2) -> 2Li(+) + SO4(-2) + H2S
2H(+) + S(-2) -> H2S
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Answers & Comments
Cu(OH)2 + 2H(+) + 2NO3(-) -> Cu(+2) + 2NO3(-) + 2H2O
Cu(OH)2 + 2H(+) -> Cu(+2) + 2H2O
ZnSO4 + 2KOH -> Zn(OH)2 + K2SO4
Zn(+2) + SO4(-2) + 2K(+) + 2OH(-) -> Zn(OH)2 + 2K(+) + SO4(-2)
Zn(+2)+ 2OH(-) -> Zn(OH)2
Li2S + H2SO4 -> Li2SO4 + H2S
2Li(+) + S(-2) + 2H(+) + SO4(-2) -> 2Li(+) + SO4(-2) + H2S
2H(+) + S(-2) -> H2S