Составьте ионное ур-е реакций.
1. Cu(No3)+Na2SO4→CuSI4+NaNO3
2. AgNO3+NaCl→AgCl+NaNO3
3. NaOH+H3PO4→Na3PO4+H2O
1. Cu(No3)+Na2SO4→CuSI4+NaNO3
2. AgNO3+NaCl→AgCl+NaNO3
3. NaOH+H3PO4→Na3PO4+H2O
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Answers & Comments
2. AgNO3+NaCl=AgCl+NaNO3.
Ag+ + NO3- + Na+ + Cl- = AgCl (осадок) + Na+ + NO3-.
3. 3NaOH+H3PO4=Na3PO4+3H2O.
3Na+ + 3OH- + H3+ + PO4 3-= Na3+ + PO4 3- + 3H2O.