First of all, to balance these equations, list the number of each atom, for both sides of the equation. A chemical equation describes what happens in a chemical reaction.The equation identifies the reactants (starting materials) and products (resulting substances), the formulas of the participants, the phases of the participants (solid, liquid, gas), the direction of the chemical reaction, and the amount of each substance. We see that we have #6 + 4=10# oxygen molecules on the RHS, so we will have #10/2 = 5# molecules on the LHS. The balanced equation will appear above. Direct link to this balanced equation: Instructions on balancing chemical equations: Enter an equation of a chemical reaction and click 'Balance'. Use uppercase for the first character in the element and lowercase for the second character. (There will be no need for state symbols.) It shows the number of units of each substance involved. CO + H2O + PdCl2 = HCl + CO2 + Pd | Chemical Equation Details carbon monoxide + Water + Palladium(II) chloride = hydrogen chloride + carbon dioxide + Pd | #C_3H_8 + O_2 -> 3CO_2 + 4H_2O# The last step is to determine the coefficient of the oxygen gas on the LHS. The balanced equation will appear above. Examples: Fe, Au, Co, Br, C, O, N, F. Ionic charges are not yet supported and will be ignored. models a chemical reaction using the formulae. A balanced equation. of the reactants. To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. The answer will appear below; Always use the upper case for the first character in the element name and the lower case for the second character. To balance a chemical equation, enter an equation of a chemical reaction and press the Balance button. and products. Use uppercase for the first character in the element and lowercase for the second character. The final balanced chemical equation is Examples: Fe, Au, Co, Br, C, O, N, F. Ionic charges are not yet supported and will be ignored. Balance the following equation: C3H8 + O2 ----> CO2 + H2O. Now I multiply the #CO_2# by #3# to match the amount of #C# as on the LHS. In this example, it would be: Carbon: 3 Carbon: 1 Hydrogen: 8 Hydrogen: 2 Oxygen: 2 Oxygen: 3.