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4 NH3 + 5 O2 = 4 NO + 6 H2O
Zn + O2 = ZnO =>
2 Zn + O2 = 2 ZnO
CoCl2 + Na3PO4 = Co3(PO4)2 + NaCl =>
3 CoCl2 + 2 Na3PO4 = Co3(PO4)2 + 6 NaCl
HgO = Hg + O2 =>
2 HgO = 2 Hg + O2
Fe + CrO3 + HCl = FeCl2 + CrCl3 + H2O =>
3 Fe + 2 CrO3 + 12 HCl = 3 FeCl2 + 2 CrCl3 + 6 H2O
H2S(aq) + KOH(aq) = H2O(l) + K2S(aq) =>
H2S(aq) + 2 KOH(aq) = 2 H2O(l) + K2S(aq)
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
H2 + S = H2S =>
H2 + S = H2S
KClO3 + HCl = KCl + H2O + Cl2 =>
KClO3 + 6 HCl = KCl + 3 H2O + 3 Cl2
NaHSO4 + H2O = Na2O + H2SO4 =>
2 NaHSO4 + H2O = Na2O + 2 H2SO4
Mg + S = MgS =>
Mg + S = MgS
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
NaCl(l) = Na(l) + Cl2(g) =>
2 NaCl(l) = 2 Na(l) + Cl2(g)
HNO3 + NaOH = NaNO3 + H2O =>
HNO3 + NaOH = NaNO3 + H2O
CuCl2 + H2SO4 = CuSO4 + HCl =>
CuCl2 + H2SO4 = CuSO4 + 2 HCl
K2Cr2O7 + NaOH = K2CrO4 + Na2CrO4 + H2O =>
K2Cr2O7 + 2 NaOH = K2CrO4 + Na2CrO4 + H2O
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
K + S = K2S =>
2 K + S = K2S
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
HNO3 + NaOH = NaNO3 + H2O =>
HNO3 + NaOH = NaNO3 + H2O
CrO + HCl = CrCl2 + H2O =>
CrO + 2 HCl = CrCl2 + H2O
Al(s) + H2SO4(aq) = H2(g) + Al2(SO4)3(aq) =>
2 Al(s) + 3 H2SO4(aq) = 3 H2(g) + Al2(SO4)3(aq)
HNO3 + NaOH = NaNO3 + H2O =>
HNO3 + NaOH = NaNO3 + H2O
Al + S = Al2S3 =>
2 Al + 3 S = Al2S3
Cr2O3 + HCl = CrCl3 + H2O =>
Cr2O3 + 6 HCl = 2 CrCl3 + 3 H2O
Cr2(SO4)3 + HCl = Cr(HCl) + SO4 =>
Cr2(SO4)3 + 2 HCl = 2 Cr(HCl) + 3 SO4
NaHCO3 + N2 = NaNO3 + C + H2 =>
2 NaHCO3 + N2 = 2 NaNO3 + 2 C + H2
Li + S = Li2S =>
2 Li + S = Li2S
Li + O2 = Li2O =>
4 Li + O2 = 2 Li2O
Cr2O4 + HCl = CrCl4 + H2O =>
Cr2O4 + 8 HCl = 2 CrCl4 + 4 H2O
Al(s) + O2(g) = Al2O3(s) =>
4 Al(s) + 3 O2(g) = 2 Al2O3(s)
Zn + S = ZnS =>
Zn + S = ZnS
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
NaHCO3 + N2 = NaNO3 + C2H2 =>
2 NaHCO3 + N2 = 2 NaNO3 + C2H2
Zn(s) + MgSO4(aq) = ZnSO4 + Mg =>
Zn(s) + MgSO4(aq) = ZnSO4 + Mg
BaCl2 + H2SO4 = BaSO4 + HCl =>
BaCl2 + H2SO4 = BaSO4 + 2 HCl
Zn + HCl = ZnCl2 + H2 =>
Zn + 2 HCl = ZnCl2 + H2
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
Li + Cl2 = LiCl =>
2 Li + Cl2 = 2 LiCl
Ca + F = CaF2 =>
Ca + 2 F = CaF2
MgO + H3PO4 = Mg3(PO4)2 + H2O =>
3 MgO + 2 H3PO4 = Mg3(PO4)2 + 3 H2O
Cu + HCl = CuCl2 + H2 =>
Cu + 2 HCl = CuCl2 + H2
Mg + Cl2 = MgCl2 =>
Mg + Cl2 = MgCl2
Al + Cl2 = AlCl3 =>
2 Al + 3 Cl2 = 2 AlCl3
Na + S = Na2S =>
2 Na + S = Na2S
KCa2Nb3O10 + NaNbO3 = KCa2Na2Nb5O16 =>
KCa2Nb3O10 + 2 NaNbO3 = KCa2Na2Nb5O16
Ca + P = CaP =>
Ca + P = CaP
Zn(s) + MgSO4(aq) = ZnSO4(aq) + Mg =>
Zn(s) + MgSO4(aq) = ZnSO4(aq) + Mg
CrCl3 + Br2 + KOH = K2CrO4 + KBr + KCl + H2O =>
2 CrCl3 + 3 Br2 + 16 KOH = 2 K2CrO4 + 6 KBr + 6 KCl + 8 H2O
Zn(s) + MgSO4(aq) = ZnSO4(s) + Mg =>
Zn(s) + MgSO4(aq) = ZnSO4(s) + Mg
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