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dasha2012235
@dasha2012235
August 2022
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Помогите №2 по химии,пожалуйста.
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svetka1574
Verified answer
1) 4Li + O2 -> 2Li2O
2Ca + O2 -> 2CaO
2Mg + O2 -> 2MgO
2Li + Cl2 -> 2LiCl
2Zn + O2 -> 2ZnO
2Na + H2 -> 2NaH
2 Fe + O2 -> 2FeO
Fe + S -> FeS
4P + 5O2 -> 2P2O5
K2O + H2O -> 2KOH
CaO + H2O -> Ca(OH)2
SO3 + H2O -> H2SO4
P2O5 + 3H2O -> 2H3PO4
Na2O + H2O -> 2NaOH
2) Cu(OH)2 -> CuO + H2O
2Fe(OH)3 -> Fe2O3 + 3H2O
H2SO3 -> SO2 + H2O
H2CO3 -> CO2 + H2O
2HgO -> 2Hg + O2
2H2O -> 2H2 + O2
CaCO3 -> CaO + CO2
BaSO4 -> BaO + SO3
3) Zn + H2SO4 -> ZnSO4 + H2
H2SO4 + Ni -> NiSO4 + H2
Sn + 2HCl -> SnCl2 + H2
2 Al + 6HCl ->2 AlCl3 +3 H2
2Li + 2H2O ->2 LiOH + H2
2K +2 H2O -> 2KOH + H2
Ca + 2H2O -> Ca(OH)2 + H2
CuSO4 + Zn -> Cu + ZnSO4
FeCl2 + Ca -> CaCl2 + Fe
4) 2 HCl + Na2O -> 2NaCl + H2O
H2SO4 + MgO -> MgSO4 + H2O
6HNO3 + Fe2O3 ->2 Fe(NO3)3 + 3H2O
2HCl + PbO -> PbCl2 + H2O
FeCl2 + 2KOH -> Fe(OH)2 + 2KCl
Al2(SO4)3 +6 NaOH ->2 Al(OH)3 + 3Na2SO4
Ba(NO3)2 + H2CO3 -> BaCO3 + 2HNO3
3CaCl2 + 2H3PO4 -> Ca3(PO4)2 + 6HCL
Ca(NO3)2 + Na2SiO3 -> CaSiO3 + 2NaNO3
1 votes
Thanks 1
dasha2012235
Спасибо огромное,Света!
dasha2012235
Вы мне так помогли!!!
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Answers & Comments
Verified answer
1) 4Li + O2 -> 2Li2O2Ca + O2 -> 2CaO
2Mg + O2 -> 2MgO
2Li + Cl2 -> 2LiCl
2Zn + O2 -> 2ZnO
2Na + H2 -> 2NaH
2 Fe + O2 -> 2FeO
Fe + S -> FeS
4P + 5O2 -> 2P2O5
K2O + H2O -> 2KOH
CaO + H2O -> Ca(OH)2
SO3 + H2O -> H2SO4
P2O5 + 3H2O -> 2H3PO4
Na2O + H2O -> 2NaOH
2) Cu(OH)2 -> CuO + H2O
2Fe(OH)3 -> Fe2O3 + 3H2O
H2SO3 -> SO2 + H2O
H2CO3 -> CO2 + H2O
2HgO -> 2Hg + O2
2H2O -> 2H2 + O2
CaCO3 -> CaO + CO2
BaSO4 -> BaO + SO3
3) Zn + H2SO4 -> ZnSO4 + H2
H2SO4 + Ni -> NiSO4 + H2
Sn + 2HCl -> SnCl2 + H2
2 Al + 6HCl ->2 AlCl3 +3 H2
2Li + 2H2O ->2 LiOH + H2
2K +2 H2O -> 2KOH + H2
Ca + 2H2O -> Ca(OH)2 + H2
CuSO4 + Zn -> Cu + ZnSO4
FeCl2 + Ca -> CaCl2 + Fe
4) 2 HCl + Na2O -> 2NaCl + H2O
H2SO4 + MgO -> MgSO4 + H2O
6HNO3 + Fe2O3 ->2 Fe(NO3)3 + 3H2O
2HCl + PbO -> PbCl2 + H2O
FeCl2 + 2KOH -> Fe(OH)2 + 2KCl
Al2(SO4)3 +6 NaOH ->2 Al(OH)3 + 3Na2SO4
Ba(NO3)2 + H2CO3 -> BaCO3 + 2HNO3
3CaCl2 + 2H3PO4 -> Ca3(PO4)2 + 6HCL
Ca(NO3)2 + Na2SiO3 -> CaSiO3 + 2NaNO3