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Tolya99
@Tolya99
August 2022
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Сделайте пожалуйста 3 варианты 4 и 5 заданий
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gavrilka
Verified answer
4,1)FeCl3 + Na3PO4 = 3NaCl + FePO4
Fe(3+) + PO4(3-) = FePO4
4.2) Cu(NO3)2 + 2KOH = 2KNO3 + Cu(OH)2
Cu(2+) + 2OH(-) = Cu(OH)2
5.1) Na2SO4 + HCl = не идет
5.2) Cu(NO3)2 + 2KOH = 2KNO3 + Cu(OH)2
Cu(2+) + 2OH(-) = Cu(OH)2
5.3) CaCO3 + H2SO4 = CaSO4 + CO2 + H2O
2H(+) + SO4(2−) + CaCO3 = CaSO4↓ + CO2 + H2
O
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Answers & Comments
Verified answer
4,1)FeCl3 + Na3PO4 = 3NaCl + FePO4Fe(3+) + PO4(3-) = FePO4
4.2) Cu(NO3)2 + 2KOH = 2KNO3 + Cu(OH)2
Cu(2+) + 2OH(-) = Cu(OH)2
5.1) Na2SO4 + HCl = не идет
5.2) Cu(NO3)2 + 2KOH = 2KNO3 + Cu(OH)2
Cu(2+) + 2OH(-) = Cu(OH)2
5.3) CaCO3 + H2SO4 = CaSO4 + CO2 + H2O
2H(+) + SO4(2−) + CaCO3 = CaSO4↓ + CO2 + H2O