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Feature Input Equation Demo Subscripts N = N 2 N → N 2 Groups Mg (OH) 2 = MgO + H2O Mg(OH) 2 → MgO + H 2 O Compounds H2 + O2 = H2O H 2 + O 2 → H 2 O Ions H ^+ + CO3 ^2- = H2O + CO2 H+ + CO 3 2− → H 2 O + CO 2 No space A3^-+B2^2+=A5B+e A 3 − + B 2 2+ → A 5 B + e− Electrons Fe^3+ + e = Fe Fe3+ + e− → Fe More space C 3 H 5 ( O H ) 3 + O 2 = H 2 O + C O 2 C 3 H 5 (OH) 3 + O 2 → H 2 O + CO 2 Flexible names Foo ^5+ + Bar ^3- = Foo Bar 2 + Foo Bar ^- Foo5+ + Bar3− → FooBar 2 + FooBar− Optional 1 H 1 ^ 1 + + e = H 1 ^ 1 - H+ + e− → H−

H2 + O2 = H2O P4 + O2 = P2O5 Na + O2 = Na2O Fe + O2 = Fe2O3 Fe + Cl2 = FeCl3 Na2O + H2O = NaOH NH3 + O2 = N2 + H2O C2H2 + O2 = CO2 + H2O Mg + HCl = MgCl2 + H2 C3H8O + O2 = CO2 + H2O Cu(NO3)2 = CuO + NO2 + O2 C6H5COOH + O2 = CO2 + H2O Al + CuSO4 = Al2(SO4)3 + Cu AgNO3 + LiOH = AgOH + LiNO3 Ag + HNO3 = AgNO3 + NO + H2O CHCl3 + O2 = CO2 + H2O + Cl2 HNO3 + Cu = Cu(NO3)2 + H2O + NO AgNO3 + BaCl2 = Ba(NO3)2 + AgCl P4 + OH^- + H2O = H2PO2^- + P2H4 KNO2 + KNO3 + Cr2O3 = K2CrO4 + NO KClO3 + KBr + HCl = KCl + Br2 + H2O ICl + H2O = Cl^- + IO3^- + I2 + H^+ H2O2 + Cr2O7^2- = Cr^3+ + O2 + OH^- KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 Na3PO4 + Zn(NO3)2 = NaNO3 + Zn3(PO4)2 Pb + PbO2 + H^+ + SO4^2- = PbSO4 + H2O Zn + NO3^- + H^+ = Zn^2+ + NH4^+ + H2O Cl2 + Ca(OH)2 = Ca(ClO)2 + CaCl2 + H2O H2C2O4 + MnO4^- = H2O + CO2 + MnO + OH^- KBr + KMnO4 + H2SO4 = Br2 + MnSO4 + K2SO4 + H2O K2Cr2O7 + KI + H2SO4 = Cr2(SO4)3 + I2 + H2O + K2SO4 K4Fe(CN)6 + H2SO4 + H2O = K2SO4 + FeSO4 + (NH4)2SO4 + CO K4Fe(CN)6 + KMnO4 + H2SO4 = KHSO4 + Fe2(SO4)3 + MnSO4 + HNO3 + CO2 + H2O AB2 + AC3 + AD5 + AE7 + AF11 + AG13 + AH17 + AI19 + AJ23 = A + ABCDEFGHIJ