1) 2Р+3Mg -> Mg3P2
2)Mg3Р2+6Н2О -> 2РН3+3Mg(ОН)
3)2РН3+4О2 -> Р2О5+3Н2О
4)Р2О5+3Н2О -> 2Н3РО4
5) <span>3CaO + 2H3PO4(разб.) -> Ca3(PO4)2↓ + 3H2O</span>
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1)Ковалентний полярний
2)Не існуе
<span><span>Zn + 2HCl = ZnCl2 + H2(газ)</span></span>
<span>CuO+2HCl=CuCl2+H2O</span>
<span>NaOH+HCl= NaCl+H2O</span>
<span>Na2CO3 + 2HCl = 2NaCl + H2O + CO2</span>
<span>HCl + AgNO3 = AgCl↓ + HNO3.</span>
<span>NaCl+AgNO3=AgCl+NaNO3</span>
1)
3NaOH+FeCl3=Fe(OH)3+3NaCl
3Na(+) + 3OH(-) + Fe(3+) + 3Cl(-) =
Fe(OH)3 + 3Na(+) + 3Cl(-)
Fe(3+) + 3OH(-) = Fe(OH)3
2)
CaCO3+2HNO3=Ca(NO3)2+H2O+CO2
CaCO3 + 2H(+) + 2NO3(-) =
Ca(2+) + 2NO3(-) + H2O + CO2
CaCO3 +2H(+) = Ca(2+) + H2O + CO2
3)
Ca(OH)2+2HCl=CaCl2+2H2O
Ca(OH)2 + 2H(+) + 2Cl(-) =
Ca(2+) + 2Cl(-) + 2H2O
Ca(OH)2 + 2H(+) = Ca(2+) + 2H2O