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2 Zn + O2 = 2 ZnO
KCLO3 = KCL + O2 =>
2 KCLO3 = 2 KCL + 3 O2
Al + Cl2 = AlCl3 =>
2 Al + 3 Cl2 = 2 AlCl3
[Cr(H2O)6]Cl3 + NaOH = Cr(OH)3 + H2O + NaCl =>
[Cr(H2O)6]Cl3 + 3 NaOH = Cr(OH)3 + 6 H2O + 3 NaCl
SO2 + NaOH = Na2SO3 + H2O =>
SO2 + 2 NaOH = Na2SO3 + H2O
Zn(s) + HCl(aq) = ZnCl2(aq) + H2(g) =>
Zn(s) + 2 HCl(aq) = ZnCl2(aq) + H2(g)
Zn + Fe(NO3)2 = Fe + Zn(NO3) =>
2 Zn + Fe(NO3)2 = Fe + 2 Zn(NO3)
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
K + O2 = K2O =>
4 K + O2 = 2 K2O
Al(NO3)3 + NaOH = Al(OH)3 + NaNO3 =>
Al(NO3)3 + 3 NaOH = Al(OH)3 + 3 NaNO3
Al + NaNO{3} + H{2}0 = NH{3} + NaAl(OH){4} =>
Al + NaNO{3} + 2 H{2}0 = NH{3} + NaAl(OH){4}
K + H2SO4 = H2 + K2SO4 =>
2 K + H2SO4 = H2 + K2SO4
CF4 + Br2 = CBr4 + F2 =>
CF4 + 2 Br2 = CBr4 + 2 F2
Al + H{+} = H2 + Al3{+} =>
6 Al + 2 H{+} = H2 + 2 Al3{+}
HIO3 + H2S = HI + S + H2O =>
HIO3 + 3 H2S = HI + 3 S + 3 H2O
Fe2O3 + C = Fe + CO =>
Fe2O3 + 3 C = 2 Fe + 3 CO
Cu + O2 = CuO2 =>
Cu + O2 = CuO2
Cu + O2 = CuO =>
2 Cu + O2 = 2 CuO
Ca(OH)2 + H2SO4 = CaSO4 + H2O =>
Ca(OH)2 + H2SO4 = CaSO4 + 2 H2O
WO3 + (b)H2 = (c)W + (d)H2O =>
WO3 + 3(b)H2 = (c)W + 3(d)H2O
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
Fe(OH)3 = Fe2O3 + H2O =>
2 Fe(OH)3 = Fe2O3 + 3 H2O
WO3 + H2 = W + H2O =>
WO3 + 3 H2 = W + 3 H2O
BACO3 = BAO + CO2 =>
BACO3 = BAO + CO2
H + AU{3+} = H{+} + AU =>
3 H + AU{3+} = 3 H{+} + AU
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
BaOH + CO2 = Ba2CO3 + H2O =>
2 BaOH + CO2 = Ba2CO3 + H2O
KBr + Al2O3 = K2O + AlBr3 =>
6 KBr + Al2O3 = 3 K2O + 2 AlBr3
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
Br2 + (b)KI = (c)KBr + (d)I2 =>
Br2 + 2(b)KI = 2(c)KBr + (d)I2
LaCl3 + Na2CO3 = La2(CO3)3 + NaCl =>
2 LaCl3 + 3 Na2CO3 = La2(CO3)3 + 6 NaCl
Cl2 + K2CO3 = KCl + KClO + CO2 =>
Cl2 + K2CO3 = KCl + KClO + CO2
K + O2 = KO =>
2 K + O2 = 2 KO
H2S + O2 = SO2 + H20 =>
10 H2S + 10 O2 = 10 SO2 + H20
BaOH + CO2 = BaCO3 + H2 =>
2 BaOH + 2 CO2 = 2 BaCO3 + H2
BaCO3 = BaO + CO2 =>
BaCO3 = BaO + CO2
Pb(NO3)2 + (b)NaOH = (c)Pb(OH)2 + (d)NaNO3 =>
Pb(NO3)2 + 2(b)NaOH = (c)Pb(OH)2 + 2(d)NaNO3
Pb + H3PO4 = H2 + Pb3(PO4)2 =>
3 Pb + 2 H3PO4 = 3 H2 + Pb3(PO4)2
Na2SO3 + K2Cr2O7 + H2O = Cr(OH)3 + KOH + Na2SO4 =>
3 Na2SO3 + K2Cr2O7 + 4 H2O = 2 Cr(OH)3 + 2 KOH + 3 Na2SO4
PO3 + BrO = PO4 + Br =>
PO3 + BrO = PO4 + Br
Ca(OH)2 + (NH4)2SO4 = CaSO4 + NH4OH =>
Ca(OH)2 + (NH4)2SO4 = CaSO4 + 2 NH4OH
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
NA + HOH = NAOH + H =>
NA + HOH = NAOH + H
Na2CO3(s) + HCl(aq) = NaCl(aq) + H2O(l) + CO2(g) =>
Na2CO3(s) + 2 HCl(aq) = 2 NaCl(aq) + H2O(l) + CO2(g)
C6H6 + O2 = CO2 + H2O =>
2 C6H6 + 15 O2 = 12 CO2 + 6 H2O
C6H5OH + O2 = CO2 + H20 =>
10 C6H5OH + 55 O2 = 60 CO2 + 3 H20
H + AU{3+} = H{+} + AU =>
3 H + AU{3+} = 3 H{+} + AU
CuSO4 + NaOH = Cu(OH)2 + Na2SO4 =>
CuSO4 + 2 NaOH = Cu(OH)2 + Na2SO4
FeCl3 + NaOH = NaCl + Fe(OH)3 =>
FeCl3 + 3 NaOH = 3 NaCl + Fe(OH)3
COCl2(g) = CO(g) + Cl2 =>
COCl2(g) = CO(g) + Cl2
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