Ответы
1 бумажка
Pb(NO3)2 + 2KOH = Pb(OH)2 ↓ + 2KNO3
Pb[2+] + 2NO3[-] + 2K[+] + 2OH[-] = Pb(OH)2↓ + 2K[+] + 2NO3[-]
Pb[2+] + 2OH[-] = Pb(OH)2↓
FeO + Ba(OH)2 = \\\
2H3PO4 + 3Ca(OH)2 = Ca3(PO4)2↓ + 6H2O
6H[+] 2PO4[3-] + 3Ca[2+] +6OH[+] = Ca3(PO4)2↓ + 6H2O
Cr(OH)3 + Mg(OH)2 =
2NaOH + SO3 = Na2SO4 + H2O
2Na[+] + 2OH[-] + SO3 = 2Na[+] + SO4[2-] + H2O
SO3 + 2OH[-] = SO4[2-] + H2O
Mg(OH)2 + 2HNO3 = Mg(NO3)2 + 2H2O
Mg(OH)2 ↓ + 2H[+] + 2NO3[-] = Mg[2+] + 2NO3[-] + 2H2O
Mg(OH)2 ↓ + 2H[+] = Mg[2+] + 2H2O
2 бумажка
Li + SO3 = \\
2Li + CaO = Li2O + Ca
6Li + 2H3PO4 = 2Li3PO4 + 3H2↑
2Li + H2O = 2LiOH
Li + N2O3 = \\\
Li + Fe(OH)2 = \\\
3 бумажка
FeSO4 + Zn = ZnSO4 + Fe
Fe[2+] + SO4[2-] + Zn = Zn[2+] + SO4[2-] + Fe
Fe[2+] + Zn = Zn[2+] + Fe
FeSO4 + 2NaOH = Fe(OH)2↓ + 2Na2SO4
Fe[2+] + SO4[2-] + 2Na[+] + 2OH[-] = Fe(OH)2↓+ 2Na[+] + SO4[2-]
Fe[2+] + 2OH[-] = Fe(OH)2↓
FeSO4 + 2HCl = FeCl2 + H2SO4
Fe[2+] + SO4[2-] + 2H[+] + 2Cl[-] = Fe[2+] + 2Cl[-] + 2H[+] + SO4[2-]
FeSO4 + BaCl2 = BaSO4 ↓ + FeCl2
Fe[2+] + SO4[2-] + Ba[2+] + 2Cl[-] = BaSO4 ↓ + Fe[2+] + 2Cl[-]
Ba[2+] + SO4[2-] = BaSO4 ↓
FeSO4 + Hg = \\
FeSO4 + H2S = FeS↓ + H2SO4
Fe[2+] + SO4[2-] + 2H[+] +S[2-] = FeS↓ + 2H[+] + SO4[2-]
Fe[2+] + S[2-] = FeS↓
FeSO4 + 2NaNO3 = Fe(NO3)2 + Na2SO4
Fe[2+] + SO4[2-] + 2Na[+] + 2NO3[-] = Fe[2+] + 2NO3[-] + 2Na[+] + SO4[2-]
FeSO4 + K2CO3 = FeCO3↓ + K2SO4
Fe[2+] + SO4[2-] + 2K[+] + CO3[2-] = FeCO3↓ + 2K[+] + SO4[2-]
Fe[2+] + CO3[2-] = FeCO3
4 бумажка
H2SO4 + Li2CO3 = Li2SO4 + CO2↑ + H2O
2H[+] + SO4[2-] + 2Li[+] + CO3[2-] = 2Li[+] + SO4[2-] + CO2↑ + H2O
2H[+] + CO3[2-] = CO2↑ + H2O
H2SO4 + Pt =\\
3H2SO4 + Fe2O3 = Fe2(SO4)3 + 6H2O
6H[+] + 3SO4[2-] + Fe2O3 = 2Fe[3+] + 3SO4[2-] + 6H2O
6H[+] + Fe2O3 = 2Fe[3+] + 6H2O
H2SO4 + SiO2 =\\
H2SO4 + 2NaOH + Na2SO4 + 2H2O
2H[+] + SO4[2-] + 2Na[+] + 2OH[-] = 2Na[+] + SO4[2-] + 2H2O
2H[+] + 2OH[-] = 2H2O
H2SO4 + SrCl2 = SrSO4↓ + 2HCl
2H[+] + SO4[2-] + Sr[2+] + 2Cl[-] = Sr[2+]+ SO4[2-] + 2H[+] + 2Cl[-]
H2SO4 + Zn = ZnSO4 + H2↑
2H[+] + SO4[2-] + Zn = Zn[2+] + SO4[2-] + H2↑
2H[+] + Zn = Zn[2+] + H2↑
3H2SO4 + Al(OH)3 = Al2(SO4)3 + 6H2O
2H[+] + SO4[2-] + Al(OH)3↓ = 2Al[3+] + 3SO4[2-] + 6H2O
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