); The Gold Parsing System (Hats off! For example, C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but XC2H5 + O2 = XOH + CO2 + H2O will. Mg + CO2 --> MgO + C. When magnesium burns in the oxygen in the air it will react with the nitrogen in the air as well to make Mg3N2. For example, C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but XC2H5 + O2 = XOH + CO2 + H2O will. From the original equation, you first need to write each component separately. No, it was not. The rules for balancing an equation state that only the coefficients can be changed, not the structural formulas for the reactants or products. In many cases a complete equation … How To Balance Equations. This program was created with a lot of help from: The book "Parsing Techniques - A Practical Guide" (IMHO, one of the best computer science books ever written. Read our article on how to balance chemical equations or ask for help in our chat. What a great software product!) ); The Gold Parsing System (Hats off! How To Balance Equations. This program was created with a lot of help from: The book "Parsing Techniques - A Practical Guide" (IMHO, one of the best computer science books ever written. The balanced equation should have been: 2 Mg (s) + O2 (g) --> 2 MgO (s) What a great software product!) Compound states [like (s) (aq) or (g)] are not required. Compound states [like (s) (aq) or (g)] are not required. Read our article on how to balance chemical equations or ask for help in our chat. If you do not know what products are enter reagents only and click 'Balance'. You can use parenthesis or brackets []. You can use parenthesis or brackets []. Input Equation Balanced Equation; MgCO3=MgO+CO2: MgCO3 = MgO + CO2: MnO2 + HCl = MnCl2 + Cl2 + H2O: MnO2 + 4HCl = MnCl2 + Cl2 + 2H2O: Mg + O2 = MgO Multiply #Mg# on the left side by #2# to balance the magnesiums. #2Mg(s)+O_2(g)->2MgO(s)# Now, there are equal amounts of magnesium atoms and oxygen atoms on both sides, and so the equation is balanced. Magnesium metal will react with CO2 in the form of dry ice to make carbon and MgO. MgO2 is not MgO. 2 Mg(s) + O2(g) → 2 MgO(s) As magnesium (Mg) has a valency of +2, and oxygen (O) has a valency of -2, the ratio would be 1:1, and magnesium oxide would be represented as MgO. The Calitha - GOLD engine (c#) (Made it … For instance equation C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but PhC2H5 + O2 = PhOH + CO2 + H2O will; Compound states [like (s) (aq) or (g)] are not required. The Calitha - GOLD engine (c#) (Made it … #H_2 + O_2 = H_2O# Left side: H = 2; O = 2 (number based on the subscript) Right side: H = 2; O = 1 (number based on the subscripts; no subscript means that the element is just 1) Notice that the number of H is already balance but the number of O is not.