Read our article on how to balance chemical equations … the coefficient is 1. I went to a Thanksgiving dinner with over 100 guests. Join Yahoo Answers and get 100 points today. If you do not know what products are enter reagents only and click 'Balance'. When the equation CaCO3 ? n = 88/ (12 + (2x16)) n = approx 2 moles. Which of the following can be characterized as a strong electrolyte. the coefficients are all 1, its already balanced. The pressure of the container will increase due to the evolved CO2 to a point where 'Equilibrium' is reached. CaO + CO2 is balanced, the coefficient of carbon dioxide is? What is the number "4" in SiCl4? CaO + CO2 is balanced, the coefficient of carbon dioxide is? CaO + CO2 is balanced, the coefficient of carbon dioxide is? Unless the equation has an aqueous compound in it, there is no net ionic equation. => 2Ca + O2 → 2CaO. You don't need the O2 in the equation. this can be trick balancing equations but this one is easy. CaCO3 ---> CaO + CO2. 1 decade ago. Given the balanced equation representing a reaction: Cao(s) + CO2(g) ---> CaCO3(s) + heat What is the total mass of CaO(s) that reacts completely with 88 grams of CO2(g) to produce 200. grams of CaCO3(s)? Ca + O2 = CaO; NaOH + CO2 = Na2CO3 + H2O; NaNO3 + H2O = Na + HNO3 + O2; Fe2O3 + C = Fe + CO2; S + O2 = SO3; Recently Balanced Equations So, at least 2 atoms of ‘Ca’ are needed for 1 molecule of ‘O2’ for the reaction to complete and the system to be stable. so, for CO2, n=m/mm. 1. the equation is already balanced. So you're balanced! Still have questions? I have put some theory for you to understand. CaCO3 <====> CaO + CO2. I don't understand what you have to do. If you do not know what products are enter reagents only and click 'Balance'. At this point, the number of CO2 molecules evolving will be equal to the number returning to the CaO to form CaCO3. Should I call the police on then? One CaCO3. Balancing Ca, just one caO out. the correct equation is CaCO3--> CaO+CO2. Answer Save. The expression CaCO3 → CaO + CO2 is an example of a. chemical equation. is balanced and refers to the process called "calcination," the thermal decomposition of calcium carbonate ther are 3 oxygen atoms on both sides of the equation. the coefficients are all 1, its already balanced… 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. Hey. When the equation CaCO3 ? In many cases a complete equation … Favorite Answer. Check: 3 O's in caCO3 = 1 x O in caO + 2 x O in CO2. so if u look at the reaction there is equal moles of CaO and CO2 reacting in the equation. The chief was seen coughing and not wearing a mask. In many cases a complete equation … Tony Hsieh, iconic Las Vegas entrepreneur, dies at 46, A boxing farce: Ex-NBA dunk champ quickly KO'd, Jolie becomes trending topic after dad's pro-Trump rant, 2 shot, killed at Northern Calif. mall on Black Friday, Harmless symptom was actually lung cancer, Eric Clapton sparks backlash over new anti-lockdown song, Highly conservative state becomes hot weed market, Black Friday starts off with whimper despite record day, No thanks: Lions fire Matt Patricia, GM Bob Quinn, How the post-election stocks rally stacks up against history, Reynolds, Lively donate $500K to charity supporting homeless. Relevance. therefore if u can find the moles of CO2 using n=m/mm (moles = mass/ molar mass) u can use the same formula to find the mass of CaO which also reacts. Fe2O3 + 6 HCl → 2 FeCl3 + 3 H2O. Which is the correctly balanced equation for the reaction of rust, Fe2O3, and hydrochloric acid, HCl? For example, C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but XC2H5 + O2 = XOH + CO2 + H2O will. Anonymous. When the equation CaCO3 ? which makes you more jittery coffee or tea? Min is asked to balance the equation below. Compound states [like (s) (aq) or (g)] are not required.