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alexeyivanovnk1234
@alexeyivanovnk1234
October 2021
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Помогите решить пожалуйста.
Тема: Химические реакции. Растворы. Электрическая диссоциация
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Platinum15
Verified answer
2)
а) NaCl + AgNO3 = AgCl + NaNO3
Cl (-) + Ag (-) = AgCl
б) 2HNO3 + Ca(OH)2 = Ca(NO3)2 + 2H2O
H(+) + OH(-) = H2O
в) 2HCl + K2CO3 = 2KCl + CO2 + H2O
2H(+) + CO3 (2-) = CO2 + H2O
3)
Zn + H2SO4 = ZnSO4 + H2
Zn (0) + 2H(+) = Zn(2+) + H2 (0)
K2O + H2SO4 = K2SO4 +H2O
K2O + 2H(+) = 2K(+) + H2O
Fe(OH)2 + H2SO4 = FeSO4 +2H2O
Fe(OH)2 + 2H(+) = Fe(2+) + 2 H2O
BaCl2 + H2SO4 = BaSO4 + 2HCl
Ba (2+) +SO4 (2-) = BaSO4
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Answers & Comments
Verified answer
2)а) NaCl + AgNO3 = AgCl + NaNO3
Cl (-) + Ag (-) = AgCl
б) 2HNO3 + Ca(OH)2 = Ca(NO3)2 + 2H2O
H(+) + OH(-) = H2O
в) 2HCl + K2CO3 = 2KCl + CO2 + H2O
2H(+) + CO3 (2-) = CO2 + H2O
3)
Zn + H2SO4 = ZnSO4 + H2
Zn (0) + 2H(+) = Zn(2+) + H2 (0)
K2O + H2SO4 = K2SO4 +H2O
K2O + 2H(+) = 2K(+) + H2O
Fe(OH)2 + H2SO4 = FeSO4 +2H2O
Fe(OH)2 + 2H(+) = Fe(2+) + 2 H2O
BaCl2 + H2SO4 = BaSO4 + 2HCl
Ba (2+) +SO4 (2-) = BaSO4