H2 + O2 = H2O 2. Get your answers by asking now. Favorite Answer. What is the sum of the coefficients of the balanced equation? The equation is now balanced, but we usually write equations with whole-number coefficients. mrfarabaugh. Write a balanced chemical equation for the reaction of zinc carbonate with nitric acid. pls. What you did with 1 ⁄ 2 H 2 is reduce the number of hydrogens on the right-hand side from a total of 3 to a total of 2. 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. Here's another method. Chemical equations are balanced for mass and charge, meaning the … Answer Save. 1 decade ago. 2H2 + O2 = 2H2O 3. Balance Each Of These Chemical Equations: A.) Still have questions? 2 Answers. This chemical equation balancer can help you to balance an unbalanced equation. Since everything but the hydrogen was already in balance, the equation is now balanced. Complete and balance the equations for the following reaction? 1 decade ago. Hydrocarbons are excellent fuels which contain carbon and hydrogen atoms only. Dxt3R 1O. C + H2O → CO + H2 [balanced as written] 1 mol of steam (H2O) will react with 1 mol of C. care to giv the skeleton eq. + H2O Fe2O3 H2 + → Fe B.) 2 Cs(s) + 2 H2O(l) ==> 2 CsOH(aq) + H2(g) 0 0. Go back to the skeleton equation and balance it like this: Na + H 2 O ---> NaOH + 1 ⁄ 2 H 2. See the answer #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. Input Equation Balanced Equation; C6H12O6 + O2 = C2H5OH + CO2: C6H12O6 + 0O2 = 2C2H5OH + 2CO2: CaC2 + H2O = Ca(OH)2 + C2H2: CaC2 + 2H2O = Ca(OH)2 + C2H2 C7H16 + O2 arrow CO2 + H2O a. ZnCO3(s) + 2 HNO3(aq) → Zn(NO3)2(aq) + H2O(l) + CO2(g) ... H2CO3 + NaOH Na2CO3 + H2O not balanced Then place a coefficient in front of one or more of the formulas, as necessary, to balance the equation. Following are some equation input format examples: 1. Relevance. 0 0. SO2 + CS2 C + CO C3H6 + O2 → + H2O CO2 H2S D.) FeCl3 + Fe2S3 + HCI → This problem has been solved! When combusted in plenty of O2 gas, they are oxidised, and produce CO2 gas & H2O vapour and energy in the form of light & heat. The balancer is case sensitive. Lv 6. Cs(s) + H2O (l) -----> ? This balancer can also help you check whether the equation is balanced or not, thus you may edit the equation and check it's balance. From the original equation, you first need to write each component separately. Answer to: Balance the following chemical equation.