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2 K + 3 Co = K2Co3
AgO21 = Ag + O2 =>
2 AgO21 = 2 Ag + 21 O2
(b)Fe(OH)3(s) + H2SO4(aq) = Fe2(SO4)3(aq) + H2O(l) =>
2(b)Fe(OH)3(s) + 3 H2SO4(aq) = Fe2(SO4)3(aq) + 6 H2O(l)
C20H14O4 + NaOH = C20H14O4(NaOH)2 =>
C20H14O4 + 2 NaOH = C20H14O4(NaOH)2
[Fe(SCN)3] + KNO3 = Fe(NO3)3 + KSCN =>
[Fe(SCN)3] + 3 KNO3 = Fe(NO3)3 + 3 KSCN
K2Cr2O7 + K2C2O4 + H2SO4 = Cr2(SO4)3 + CO2 + H2O + K2SO4 =>
K2Cr2O7 + 3 K2C2O4 + 7 H2SO4 = Cr2(SO4)3 + 6 CO2 + 7 H2O + 4 K2SO4
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
CH4 + Cl2 = CCl4 + HCl = CCl4 + HF = CCl2F2 + HCl =>
CH4 + 4 Cl2 = CCl4 + 4 HCl
KNO3 + C + S = K2SO4 + CO2 + N2 =>
2 KNO3 + C + S = K2SO4 + CO2 + N2
C3H6 + O2 = CO2 + H2O =>
2 C3H6 + 9 O2 = 6 CO2 + 6 H2O
Cr3S + Mn(NO3)2 + NaCO3 = Na2MnO4 + Na2CrO4 + NaSO4 + NO + CO2 =>
2 Cr3S + 9 Mn(NO3)2 + 32 NaCO3 = 9 Na2MnO4 + 6 Na2CrO4 + 2 NaSO4 + 18 NO + 32 CO2
NH4 + MoO4 + H3PO4 + H = NH4PMo12O40 + H2O =>
NH4 + 12 MoO4 + H3PO4 + 21 H = NH4PMo12O40 + 12 H2O
CuS + HNO3 = Cu(NO3)2 + SO4 + NO + H2O =>
3 CuS + 16 HNO3 = 3 Cu(NO3)2 + 3 SO4 + 10 NO + 8 H2O
KOH + H3PO4 = K3PO4 + H2O =>
3 KOH + H3PO4 = K3PO4 + 3 H2O
Ca(NO3)2 + NaCO3(aq) = CaCO3 + Na(NO3)2 =>
Ca(NO3)2 + NaCO3(aq) = CaCO3 + Na(NO3)2
Sn + Au2O = SnO4 + Au =>
Sn + 4 Au2O = SnO4 + 8 Au
ZnOH + HNO3 = Zn(NO3)2 + NO2 + H2O =>
ZnOH + 3 HNO3 = Zn(NO3)2 + NO2 + 2 H2O
SO3 + CH4 + CO2 = H2SO4 + C4H4O2 =>
2 SO3 + 2 CH4 + 2 CO2 = 2 H2SO4 + C4H4O2
FeO + NaOH = NaFeO2 + H =>
FeO + NaOH = NaFeO2 + H
Fe + H2O = Fe2O3 + H2 =>
2 Fe + 3 H2O = Fe2O3 + 3 H2
Hg2CO3(s) = Hg(l) + HgO(s) + CO2(g) =>
Hg2CO3(s) = Hg(l) + HgO(s) + CO2(g)
BO + (H2O) = H2BO3 + H =>
BO + 2(H2O) = H2BO3 + 2 H
Os + SrO2 = SrO + OsO2 =>
Os + 2 SrO2 = 2 SrO + OsO2
C10H16 + NOCl = C10H16ClNO =>
C10H16 + NOCl = C10H16ClNO
Mg(s)H2O = MgOH2 =>
Mg(s)H2O = MgOH2
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
NaOH + O3 = NaO3 + H2O =>
6 NaOH + 5 O3 = 6 NaO3 + 3 H2O
Zn + Pb(No3)2 = ZnPb + No3 =>
Zn + Pb(No3)2 = ZnPb + 2 No3
CuCl2NaOH = CuOHClNaCl =>
CuCl2NaOH = CuOHClNaCl
BaCl2(aq) + H2SO4(aq) = BaSO4(s) + HCl(aq) =>
BaCl2(aq) + H2SO4(aq) = BaSO4(s) + 2 HCl(aq)
P2O5(s) = O2(g) + P4(s) =>
2 P2O5(s) = 5 O2(g) + P4(s)
AuCl4 + (NH4)2S = AuS2 + NH4Cl =>
AuCl4 + 2(NH4)2S = AuS2 + 4 NH4Cl
Na2SiO3 + Ca(OH)2 = CaSiO3 + NaOH =>
Na2SiO3 + Ca(OH)2 = CaSiO3 + 2 NaOH
Al2O3 + Mg = MgO + Al =>
Al2O3 + 3 Mg = 3 MgO + 2 Al
Cd + Fe(CN) = Cd[Fe(CN)] =>
Cd + Fe(CN) = Cd[Fe(CN)]
C6H5CHCHCOOH + Br2 = C6H5CHCHCOOHBr2 =>
C6H5CHCHCOOH + Br2 = C6H5CHCHCOOHBr2
Co(NO3)2 + K2O = CoO + KNO3 =>
Co(NO3)2 + K2O = CoO + 2 KNO3
Cd + HNO3 = Cd(NO3)2 + NO2 + H2O =>
Cd + 4 HNO3 = Cd(NO3)2 + 2 NO2 + 2 H2O
C2H2 + O2 = CO2 + H2O =>
2 C2H2 + 5 O2 = 4 CO2 + 2 H2O
(NH4)2S + Ba(OH)2 = BaS + NH4OH =>
(NH4)2S + Ba(OH)2 = BaS + 2 NH4OH
Sm + F = SmF =>
Sm + F = SmF
Bi(OH)3 + Na2SnO2 = Bi + Na2SnO4 + H2O =>
4 Bi(OH)3 + 3 Na2SnO2 = 4 Bi + 3 Na2SnO4 + 6 H2O
K2Cr2O7 + H2SO4 + C2H6O = Cr2(SO4)3 + CH3COOH + H2O + K2SO4 =>
2 K2Cr2O7 + 8 H2SO4 + 3 C2H6O = 2 Cr2(SO4)3 + 3 CH3COOH + 11 H2O + 2 K2SO4
Mg3P2 + Na = Na3P + Mg =>
Mg3P2 + 6 Na = 2 Na3P + 3 Mg
AgCH3CO2 + KOH = AgOH + KCH3CO2 =>
AgCH3CO2 + KOH = AgOH + KCH3CO2
C14H29CO2 + Na + CaCl2 = (C14H29CO2)Ca + NaCl2 =>
C14H29CO2 + Na + CaCl2 = (C14H29CO2)Ca + NaCl2
HFO2 + Pt(OH)4 = Pt(FO2)4 + H2O =>
4 HFO2 + Pt(OH)4 = Pt(FO2)4 + 4 H2O
C6H5OH + Na = C6H5Na + OH =>
C6H5OH + Na = C6H5Na + OH
CH3CH2COOMgBr + H2O = CH3CH2COOH + HBr + Mg(OH)2 =>
CH3CH2COOMgBr + 2 H2O = CH3CH2COOH + HBr + Mg(OH)2
C2H2 + O2 = CO2 + H2O2 =>
C2H2 + 3 O2 = 2 CO2 + H2O2
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