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мошкада
@мошкада
November 2021
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ЯковПервый
Вариант 1:
1) 2K + K2O2 = 2K2O
2) K2O + H2O = 2KOH
3) 2KOH + H2SO4 = K2SO4 + 2H2O
4) K2SO4 + BaCl2 = BaSO4 + 2KCl
Вариант 2:
1) 4P + 5O2 = 2P2O5
2) P2O5 + 3H2O = 2H3PO4
3) 3NaOH + H3PO4 = Na3PO4 + 3H2O
4) 2Na3PO4 + 3CaCl2 = Ca3(PO4)2 + 6NaCl
Вариант 3:
1) 2Cu + O2 = 2CuO
2) CuO + H2SO4 = CuSO4 + H2O
3) CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4
4) Cu(OH)2 + 2HCl = CuCl2 + 2H2O
Вариант 4:
1) 2Zn + O2 = 2ZnO
2) ZnO + 2HCl = ZnCl2 + H2O
3) ZnCl2 + 2NaOH = Zn(OH)2 + 2NaCl
4) Zn(OH)2 + H2SO4 = ZnSO4 + 2H2O
Вариант 5:
1) С + О2 = СО2
2) СО2 + 2KOH = K2CO3 + H2O
3) K2CO3 + H2SO4 = K2SO4 + CO2 + H2O
4) 2K2SO4 + H2O =(электролиз)= 4КOH + 2H2 + O2 + 2H2SO4
H2SO4 + Ca(OH)2 = CaSO4 + 2H2O
Вариант 6:
1) S + O2 = SO2
2) SO2 + 2NaOH = Na2SO3 + H2O
3) Na2SO3 + BaCl2 = BaSO3 + 2NaCl
4) BaSO3 + 2HCl = BaCl2 + SO2 + H2O
Вариант 7:
1) 4Al + 3O2 = 2Al2O3
2) Al2O3 + 3H2SO4 = Al2(SO4)3 + 3H2O
3) Al2(SO4)3 + 6NaOH = 2Al(OH)3 + 3Na2SO4
4) 2Al(OH)3 =(t°)= Al2O3 + 3H2O
Вариант 8:
1) 2Ca + O2 = 2CaO
2) CaO + H2O = Ca(OH)2
3) Ca(OH)2 + 2HCl = CaCl2 + 2H2O
4) CaCl2 =(электролиз расплава) = Ca + Cl2
Ca + H2SO4 (разб) = CaSO4 + H2
Вариант 9:
1) Si + O2 = SiO2
2) SiO2 + 2KOH = K2SiO3 + H2O
3) K2SiO3 + 2HCl = 2KCl + H2SiO3
4) H2SiO3 =(t°)= SiO2 + H2O
Вариант 10:
1) 2Mg + O2 = 2MgO
2) MgO + 2HCl = MgCl2 + H2O
3) MgCl2 + 2KOH = Mg(OH)2 + 2KCl
4) Mg(OH)2 + H2SO4 = MgSO4 + 2H2O
1 votes
Thanks 2
мошкада
спасибо вам,добрейшая душа)
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Answers & Comments
1) 2K + K2O2 = 2K2O
2) K2O + H2O = 2KOH
3) 2KOH + H2SO4 = K2SO4 + 2H2O
4) K2SO4 + BaCl2 = BaSO4 + 2KCl
Вариант 2:
1) 4P + 5O2 = 2P2O5
2) P2O5 + 3H2O = 2H3PO4
3) 3NaOH + H3PO4 = Na3PO4 + 3H2O
4) 2Na3PO4 + 3CaCl2 = Ca3(PO4)2 + 6NaCl
Вариант 3:
1) 2Cu + O2 = 2CuO
2) CuO + H2SO4 = CuSO4 + H2O
3) CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4
4) Cu(OH)2 + 2HCl = CuCl2 + 2H2O
Вариант 4:
1) 2Zn + O2 = 2ZnO
2) ZnO + 2HCl = ZnCl2 + H2O
3) ZnCl2 + 2NaOH = Zn(OH)2 + 2NaCl
4) Zn(OH)2 + H2SO4 = ZnSO4 + 2H2O
Вариант 5:
1) С + О2 = СО2
2) СО2 + 2KOH = K2CO3 + H2O
3) K2CO3 + H2SO4 = K2SO4 + CO2 + H2O
4) 2K2SO4 + H2O =(электролиз)= 4КOH + 2H2 + O2 + 2H2SO4
H2SO4 + Ca(OH)2 = CaSO4 + 2H2O
Вариант 6:
1) S + O2 = SO2
2) SO2 + 2NaOH = Na2SO3 + H2O
3) Na2SO3 + BaCl2 = BaSO3 + 2NaCl
4) BaSO3 + 2HCl = BaCl2 + SO2 + H2O
Вариант 7:
1) 4Al + 3O2 = 2Al2O3
2) Al2O3 + 3H2SO4 = Al2(SO4)3 + 3H2O
3) Al2(SO4)3 + 6NaOH = 2Al(OH)3 + 3Na2SO4
4) 2Al(OH)3 =(t°)= Al2O3 + 3H2O
Вариант 8:
1) 2Ca + O2 = 2CaO
2) CaO + H2O = Ca(OH)2
3) Ca(OH)2 + 2HCl = CaCl2 + 2H2O
4) CaCl2 =(электролиз расплава) = Ca + Cl2
Ca + H2SO4 (разб) = CaSO4 + H2
Вариант 9:
1) Si + O2 = SiO2
2) SiO2 + 2KOH = K2SiO3 + H2O
3) K2SiO3 + 2HCl = 2KCl + H2SiO3
4) H2SiO3 =(t°)= SiO2 + H2O
Вариант 10:
1) 2Mg + O2 = 2MgO
2) MgO + 2HCl = MgCl2 + H2O
3) MgCl2 + 2KOH = Mg(OH)2 + 2KCl
4) Mg(OH)2 + H2SO4 = MgSO4 + 2H2O