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Cr(No3)3 + 3 NaOH = Cr(OH)3 + 3 NaNo3
CaCl2 + KH2PO4 = Ca3(PO4)2 + KCl + HCl =>
3 CaCl2 + 2 KH2PO4 = Ca3(PO4)2 + 2 KCl + 4 HCl
KClO3 + S + C = K2S + CO2 + Cl2 =>
2 KClO3 + S + 3 C = K2S + 3 CO2 + Cl2
PH3 + F2 = PF3 + HF =>
PH3 + 3 F2 = PF3 + 3 HF
B2Br6 + HNO3 = B(NO3)3 + HBr =>
B2Br6 + 6 HNO3 = 2 B(NO3)3 + 6 HBr
CaCl2 + CH8N2O3 = NH4Cl + CaCO3 =>
CaCl2 + CH8N2O3 = 2 NH4Cl + CaCO3
Na2SO3 + NaHSO4 = Na2SO4 + H2O + SO2 =>
Na2SO3 + 2 NaHSO4 = 2 Na2SO4 + H2O + SO2
NaOH + CO2 = Na2CO3 + H2O =>
2 NaOH + CO2 = Na2CO3 + H2O
Cl + CoH3 = HCl + HCo3 =>
8 Cl + 3 CoH3 = 8 HCl + HCo3
BaBr2 + Na2SO4 = BaSO4 + NaBr =>
BaBr2 + Na2SO4 = BaSO4 + 2 NaBr
NH4(OH) + BaCl2 = Ba(OH)2 + NH4Cl =>
2 NH4(OH) + BaCl2 = Ba(OH)2 + 2 NH4Cl
NaOH + KPH = Na + KP + H2O =>
NaOH + KPH = Na + KP + H2O
N2 + H2 = N1H4 =>
N2 + 4 H2 = 2 N1H4
Cr{3} + NH3 + H2O = Cr(OH)3 + NH4{+} =>
Cr{3} + 3 NH3 + 3 H2O = Cr(OH)3 + 3 NH4{+}
CaO + H2SO4 + H2O = CaSO4*2H2O =>
CaO + H2SO4 + H2O = CaSO4*2H2O
Pd{2+} + Ag = Pd + Ag{+} =>
Pd{2+} + 2 Ag = Pd + 2 Ag{+}
CH4 + Cl2 = CCl4 + HCl =>
CH4 + 4 Cl2 = CCl4 + 4 HCl
Na2SO3(s) = Na2O(s) + SO2(g) =>
Na2SO3(s) = Na2O(s) + SO2(g)
H25O + NaOH = Na25O + H2O =>
H25O + 25 NaOH = Na25O + 25 H2O
Cr2O3(s) + CS2(l) = Cr2S3(s) + CO2(g) =>
2 Cr2O3(s) + 3 CS2(l) = 2 Cr2S3(s) + 3 CO2(g)
C16H340 + O2 = CO2 + H2O =>
C16H340 + 101 O2 = 16 CO2 + 170 H2O
Cu + H2SO4 = CuSO42 + SO2 + H2O =>
Cu + 40 H2SO4 = CuSO42 + 39 SO2 + 40 H2O
Pb(OH)2 + HCl = PbCl2 + H2O =>
Pb(OH)2 + 2 HCl = PbCl2 + 2 H2O
MgSO4*7H2O + HCl = MgCl2 + H2S + H2O + Cl2 =>
MgSO4*7H2O + 10 HCl = MgCl2 + H2S + 11 H2O + 4 Cl2
Ca(NO3)2 + H2CO3 = CaCO3 + HNO3 =>
Ca(NO3)2 + H2CO3 = CaCO3 + 2 HNO3
Sr3(PO4)2 + AgNO3 = Sr(NO3)2 + Ag3PO4 =>
Sr3(PO4)2 + 6 AgNO3 = 3 Sr(NO3)2 + 2 Ag3PO4
C4H7ClO2 + O2 = CO2 + H2O + Cl2 =>
4 C4H7ClO2 + 19 O2 = 16 CO2 + 14 H2O + 2 Cl2
CH3CH2CCH + H2O = CH3CH2COCH3 =>
CH3CH2CCH + H2O = CH3CH2COCH3
Cs2SO4 + NaOH = CsOH + Na2SO4 =>
Cs2SO4 + 2 NaOH = 2 CsOH + Na2SO4
Sn + Se = SnSe =>
Sn + Se = SnSe
K2(Zn(OH)4) + CO2 = KHCO3 + Zn(OH)2 =>
K2(Zn(OH)4) + 2 CO2 = 2 KHCO3 + Zn(OH)2
CaSO3(s) + HI(aq) = SO2(g) + H2O(l) + CaI2(aq) =>
CaSO3(s) + 2 HI(aq) = SO2(g) + H2O(l) + CaI2(aq)
(b)Fe(s) + O2(g) = Fe2O3(s) =>
4(b)Fe(s) + 3 O2(g) = 2 Fe2O3(s)
AgCl(aq) + Zn(s) = ZnCl2(aq) + Ag(s) =>
2 AgCl(aq) + Zn(s) = ZnCl2(aq) + 2 Ag(s)
Na2S2O3 + H2O3 = Na2SO4 + H2SO4 + H2O =>
Na2S2O3 + 2 H2O3 = Na2SO4 + H2SO4 + H2O
Al2O3 + SiO2 + H2O = Al2Si2O5(OH)4 =>
Al2O3 + 2 SiO2 + 2 H2O = Al2Si2O5(OH)4
Al2(CO3)3 + HCl(g) = AlCl3 + CO2 + H2O =>
Al2(CO3)3 + 6 HCl(g) = 2 AlCl3 + 3 CO2 + 3 H2O
KClO3(s) + P4S3(s) = KCl(s) + P4O10(s) + SO2(g) =>
16 KClO3(s) + 3 P4S3(s) = 16 KCl(s) + 3 P4O10(s) + 9 SO2(g)
Ca + Fe(SO4) = CaSO4 + Fe =>
Ca + Fe(SO4) = CaSO4 + Fe
FeCl3 + Na2S = FeCl2 + NaCl + S =>
2 FeCl3 + Na2S = 2 FeCl2 + 2 NaCl + S
CuFeS2 + O2 = CuS + SO2 + Fe3O4 =>
3 CuFeS2 + 5 O2 = 3 CuS + 3 SO2 + Fe3O4
Zn2(OH)3Cl*2H2O + H2SO4 = ZnSO4 + HCl + H2O =>
Zn2(OH)3Cl*2H2O + 2 H2SO4 = 2 ZnSO4 + HCl + 5 H2O
SCl6 + O2 = SO3 + Cl2 =>
2 SCl6 + 3 O2 = 2 SO3 + 6 Cl2
ZnCl2 + CuSO4 = ZnSO4 + CuCl2 =>
ZnCl2 + CuSO4 = ZnSO4 + CuCl2
KMnO4 + HNO3 = MnO4 + MnO2 + KNO3 + H2O =>
4 KMnO4 + 4 HNO3 = 3 MnO4 + MnO2 + 4 KNO3 + 2 H2O
MnO2 + H2O + e = Mn{2+} + OH{-} =>
MnO2 + 2 H2O + 2e = Mn{2+} + 4 OH{-}
HgCl2 + H2SO4 = HgSO4 + HCl =>
HgCl2 + H2SO4 = HgSO4 + 2 HCl
MgSO4(aq) + NH3(aq) + H2O(l) = Mg(OH)2(s) + (NH4)2SO4(aq) =>
MgSO4(aq) + 2 NH3(aq) + 2 H2O(l) = Mg(OH)2(s) + (NH4)2SO4(aq)
COH10 + O2 = CO2 + H2O =>
COH10 + 3 O2 = CO2 + 5 H2O
Cr2S3 + Br2 = CrBr3 + S =>
Cr2S3 + 3 Br2 = 2 CrBr3 + 3 S
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