Tại sao phản ứng giữa H2 và O2 lại tỏa ra nhiều năng lượng?

Include heat in the equation to indicate whether the reaction was endothermic or exothermic. 2H2O2(aq) → 2H2O(l) + O2(g) + Heat. 3. What is a catalyst? Name the ... Dec 11, 2009 ... ® 2NaCl(s) → 2Na(s) + Cl2(g). ® 2H2O(l) → 2H2(s) + O2(g). ® By adding energy! Page 2. 12/11/09. 2. ® 2NaCl(s) → 2Na(s) + Cl2(g). ® 2Na+ + 2Cl ... The chemical reaction 2 H 2 + O 2 → 2 H 2 O is classified as a synthesis reaction. Synthesis reactions occur when two or more reactants combine in order to ... Consider the reaction: 2 H2O2(aq) → 2 H2O(l ) + O2( g) The graph shows the concentration of H2O2 as a function of time. Use the graph to calculate each ... Sep 7, 2024 ... The given reaction is the formation of water from hydrogen and oxygen: 2H2​(g)+O2​(g)→2H2​O(g) with an enthalpy change of ΔH=−483.64kJ. This ... Mar 31, 2016 ... Summarizing from the excellent comments: Isn't the order of the reaction supposed to be the sum of powers of the concentration of the ... Jul 16, 2020 ... To find the rate of disappearance of H2O2 in the reaction 2H2O2→2H2O+O2 given that the rate of formation of O2 is 36g/min, we will follow ... Oct 31, 2023 ... In the given reaction 2H2 + O2 -> 2H2O, the oxidation number of hydrogen changes from 0 to +1. In diatomic hydrogen gas (H2), each hydrogen atom has an ... __PbS+__O2 →__PbO+__SO2. When the equation is balanced using the smallest ... C2H2 + 2H2 → C2H6. Page 6. Calculate the heat released (in kJ mol-1) ... The equation 2H2 + O2 = 2H2O is balanced because the number of atoms for each element is the same on both sides of the equation. On the left side, ...