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Fedorova61
@Fedorova61
August 2021
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Помогите с номером 16, пожалуйста
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100ethereals
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1. Na2O+H2O-->2NaOH
2.
NaOH+HCl-->NaCl+H2O
Na(+) + OH(-) + H(+) + Cl(-) --> Na(+) + Cl(-) + H2O
OH(-) + H(+) --> H2O
3.
2NaOH+CuSO4-->Na2SO4+Cu(OH)2(ос.)
2Na(+) + 2OH(-) + Cu(2+) + SO4(2-) --> 2Na(+) + SO4(2-) + Cu(OH)2(ос.)
2OH(-) + Cu(2+) --> Cu(OH)2(ос.)
4. Cu(OH)2-->CuO+H2O (t)
5.
CuO+H2SO4-->CuSO4+H2O
CuO + 2H(+) + SO4(2-) --> Cu(2+) + SO4(2-) + H2O
CuO + 2H(+) --> Cu(2+) + H2O
6.
Cu(OH)2+H2SO4-->CuSO4+2H2O
Cu(OH)2 + 2H(+) + SO4(2-) --> Cu(2+) + SO4(2-) + 2H2O
Cu(OH)2 + 2H(+) --> Cu(2+) + 2H(+)
7.
CuSO4+Ba(NO3)2-->BaSO4(ос.)+Cu(NO3)2
Cu(2+) + SO4(2-) + Ba(2+) + 2NO3(-) --> BaSO4 + Cu(2+) + 2NO3(-)
SO4(2-) + Ba(2+) --> BaSO4
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Answers & Comments
Verified answer
1. Na2O+H2O-->2NaOH2.
NaOH+HCl-->NaCl+H2O
Na(+) + OH(-) + H(+) + Cl(-) --> Na(+) + Cl(-) + H2O
OH(-) + H(+) --> H2O
3.
2NaOH+CuSO4-->Na2SO4+Cu(OH)2(ос.)
2Na(+) + 2OH(-) + Cu(2+) + SO4(2-) --> 2Na(+) + SO4(2-) + Cu(OH)2(ос.)
2OH(-) + Cu(2+) --> Cu(OH)2(ос.)
4. Cu(OH)2-->CuO+H2O (t)
5.
CuO+H2SO4-->CuSO4+H2O
CuO + 2H(+) + SO4(2-) --> Cu(2+) + SO4(2-) + H2O
CuO + 2H(+) --> Cu(2+) + H2O
6.
Cu(OH)2+H2SO4-->CuSO4+2H2O
Cu(OH)2 + 2H(+) + SO4(2-) --> Cu(2+) + SO4(2-) + 2H2O
Cu(OH)2 + 2H(+) --> Cu(2+) + 2H(+)
7.
CuSO4+Ba(NO3)2-->BaSO4(ос.)+Cu(NO3)2
Cu(2+) + SO4(2-) + Ba(2+) + 2NO3(-) --> BaSO4 + Cu(2+) + 2NO3(-)
SO4(2-) + Ba(2+) --> BaSO4