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1060 lines
66 KiB
1060 lines
66 KiB
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<node id="氢气">
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<data key="d0">氢气</data>
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<data key="d1">category</data>
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<data key="d2">Hydrogen is a chemical element that reacts with oxygen to form water.</data>
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<data key="d0">氧气</data>
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<data key="d1">category</data>
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<data key="d2">Oxygen is a chemical element that reacts with hydrogen to form water.</data>
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<node id="化学反应">
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<data key="d0">化学反应</data>
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<data key="d1">event</data>
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<data key="d2">A chemical reaction between hydrogen and oxygen produces water.</data>
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<node id="水">
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<data key="d0">水</data>
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<data key="d1">category</data>
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<data key="d2">Water is the chemical compound formed when hydrogen and oxygen react, essential for all known forms of life.</data>
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</node>
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<node id="化学方程式">
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<data key="d0">化学方程式</data>
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<data key="d1">category</data>
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<data key="d2">A chemical equation is a symbolic representation of a chemical reaction using chemical formulas.</data>
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<data key="d3">chunk-a92c992eb95f6e5fe155e1ff3dbce047</data>
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<node id="equation_3e2febd255460eebaac47f32f675fafe">
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<data key="d0">equation_3e2febd255460eebaac47f32f675fafe</data>
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<data key="d1">equation</data>
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<data key="d2">```json
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{
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"detailed_description": "The equation $$2 H _ { 2 } + O _ { 2 } = 2 H _ { 2 } O$$ repr...</data>
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</node>
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<node id="Hydrogen-Oxygen Combustion Equation">
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<data key="d0">Hydrogen-Oxygen Combustion Equation</data>
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<data key="d1">category</data>
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<data key="d2">This balanced chemical equation represents the combustion of hydrogen and oxygen to form water, adhering to mass conservation. It is foundational in chemistry, with applications in energy production and education.</data>
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</node>
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<node id="Hydrogen (H₂)">
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<data key="d0">Hydrogen (H₂)</data>
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<data key="d1">category</data>
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<data key="d2">Diatomic hydrogen molecule, a reactant in the combustion equation, fundamental in chemical reactions and energy studies.</data>
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<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Oxygen (O₂)">
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<data key="d0">Oxygen (O₂)</data>
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<data key="d1">category</data>
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<data key="d2">Diatomic oxygen molecule, a reactant in the combustion equation, essential for combustion and respiration processes.</data>
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<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Water (H₂O)">
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<data key="d0">Water (H₂O)</data>
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<data key="d1">category</data>
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<data key="d2">The product of the combustion equation, a vital molecule for life and industrial applications.</data>
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<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Stoichiometry">
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<data key="d0">Stoichiometry</data>
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<data key="d1">category</data>
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<data key="d2">Stoichiometry refers to the calculation of quantitative relationships of reactants and products in chemical reactions, demonstrated through balanced equations like 2 H2 + O2 → 2 H2O.<SEP>The mathematical relationship between reactants and products in a chemical reaction, exemplified by the combustion equation.<SEP>Stoichiometry refers to the quantitative relationship between reactants and products in a chemical reaction. It ensures conservation of mass and is foundational in predicting yields and proportions in chemical processes.</data>
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</node>
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<node id="Thermodynamics">
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<data key="d0">Thermodynamics</data>
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<data key="d1">category</data>
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<data key="d2">The study of energy changes in reactions, relevant to the exothermic nature of the combustion equation.<SEP>Thermodynamics is the study of energy transformations in chemical systems. It connects to the reaction $ 2 H_2 + O_2 \rightarrow 2 H_2O $ through enthalpy calculations and energy change analysis.</data>
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</node>
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<node id="Hydrogen Fuel Technology">
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<data key="d0">Hydrogen Fuel Technology</data>
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<data key="d1">category</data>
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<data key="d2">An application of the combustion equation, focusing on clean energy production.</data>
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<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Mathematical Equation Analysis">
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<data key="d0">Mathematical Equation Analysis</data>
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<data key="d1">category</data>
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<data key="d2">The process of analyzing and interpreting mathematical equations, particularly chemical reactions, to understand their components and implications.</data>
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<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Latex Format">
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<data key="d0">Latex Format</data>
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<data key="d1">category</data>
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<data key="d2">A document preparation system used for formatting mathematical equations and scientific notations.</data>
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<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Balanced Chemical Reaction">
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<data key="d0">Balanced Chemical Reaction</data>
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<data key="d1">category</data>
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<data key="d2">A chemical equation where the number of atoms for each element is equal on both sides, adhering to the law of conservation of mass.</data>
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<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Law of Conservation of Mass">
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<data key="d0">Law of Conservation of Mass</data>
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<data key="d1">category</data>
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<data key="d2">A fundamental principle in chemistry stating that mass is neither created nor destroyed in a chemical reaction.<SEP>The law of conservation of mass states that matter cannot be created or destroyed in a chemical reaction, ensuring the number of atoms remains constant before and after the reaction.</data>
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<data key="d3">chunk-b4e4cd7fa61e43376573d164e2730e41<SEP>chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Stoichiometric Coefficients">
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<data key="d0">Stoichiometric Coefficients</data>
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<data key="d1">category</data>
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<data key="d2">Numerical values in a chemical equation that indicate the molar ratios of reactants and products.</data>
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<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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<node id="Avogadro's Law">
|
|
<data key="d0">Avogadro's Law</data>
|
|
<data key="d1">category</data>
|
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<data key="d2">A principle stating that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules.</data>
|
|
<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Hess's Law">
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|
<data key="d0">Hess's Law</data>
|
|
<data key="d1">category</data>
|
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<data key="d2">A law in thermodynamics stating that the enthalpy change of a reaction is the same regardless of the pathway taken.</data>
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<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Reaction Kinetics">
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|
<data key="d0">Reaction Kinetics</data>
|
|
<data key="d1">category</data>
|
|
<data key="d2">Reaction kinetics is the study of the rates at which chemical reactions occur. The given equation relates to this field when considering how quickly hydrogen and oxygen combine to form water under different conditions.<SEP>The study of rates of chemical reactions and the factors that affect them.<SEP>Reaction kinetics studies the rates and mechanisms of chemical reactions. It relates to the molar proportions defined in the equation $ 2 H_2 + O_2 \rightarrow 2 H_2O $, influencing how quickly the reaction proceeds.</data>
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<data key="d3">chunk-b4e4cd7fa61e43376573d164e2730e41<SEP>chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd<SEP>chunk-f931182732fe87eaa439fb34fe3e6445</data>
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</node>
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<node id="Enthalpy Change">
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<data key="d0">Enthalpy Change</data>
|
|
<data key="d1">category</data>
|
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<data key="d2">The heat energy change in a chemical reaction at constant pressure, often denoted as ΔH.</data>
|
|
<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Synthesis Reaction">
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|
<data key="d0">Synthesis Reaction</data>
|
|
<data key="d1">category</data>
|
|
<data key="d2">A type of chemical reaction where two or more reactants combine to form a single product.</data>
|
|
<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Hydrogen Fuel Cells">
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<data key="d0">Hydrogen Fuel Cells</data>
|
|
<data key="d1">category</data>
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|
<data key="d2">Devices that convert chemical energy from hydrogen into electricity through a chemical reaction with oxygen.</data>
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<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Rocket Propulsion">
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<data key="d0">Rocket Propulsion</data>
|
|
<data key="d1">category</data>
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<data key="d2">Rocket propulsion involves the use of exothermic chemical reactions, such as hydrogen-oxygen combustion, to produce thrust. The stoichiometric relationship in the given equation supports calculations used in this field.<SEP>The use of chemical reactions, such as hydrogen combustion, to propel rockets.<SEP>Rocket propulsion systems use the combustion of hydrogen and oxygen to produce thrust. The reaction $ 2 H_2 + O_2 \rightarrow 2 H_2O $ models the energy-releasing process central to spacecraft launch systems.</data>
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<data key="d3">chunk-b4e4cd7fa61e43376573d164e2730e41<SEP>chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd<SEP>chunk-f931182732fe87eaa439fb34fe3e6445</data>
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</node>
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<node id="Industrial Water Production">
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<data key="d0">Industrial Water Production</data>
|
|
<data key="d1">category</data>
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|
<data key="d2">The large-scale production of water through chemical reactions, such as hydrogen combustion.</data>
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<data key="d3">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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</node>
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<node id="Water Synthesis Reaction Equation (equation)">
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<data key="d0">Water Synthesis Reaction Equation (equation)</data>
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<data key="d1">equation</data>
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|
<data key="d2">This equation models the stoichiometric reaction of hydrogen and oxygen forming water, illustrating conservation of mass and atomic balance. It plays a central role in understanding combustion, electrochemistry, and clean energy systems like hydrogen fuel cells.</data>
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</node>
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<node id="Hydrogen">
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|
<data key="d0">Hydrogen</data>
|
|
<data key="d1">category</data>
|
|
<data key="d2">Hydrogen is a chemical element represented by the symbol H, involved in the chemical reaction as molecular hydrogen (H2), and plays a key role in energy production and environmental chemistry.</data>
|
|
<data key="d3">chunk-f931182732fe87eaa439fb34fe3e6445</data>
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</node>
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<node id="Oxygen">
|
|
<data key="d0">Oxygen</data>
|
|
<data key="d1">category</data>
|
|
<data key="d2">Oxygen is a chemical element represented by the symbol O, essential for combustion and respiration, and reacts with hydrogen to form water in the given equation.</data>
|
|
<data key="d3">chunk-f931182732fe87eaa439fb34fe3e6445</data>
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</node>
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<node id="Water">
|
|
<data key="d0">Water</data>
|
|
<data key="d1">category</data>
|
|
<data key="d2">Water (H₂O) is a compound formed by the chemical reaction between hydrogen and oxygen. It is essential for life and widely used in industrial applications such as cooling, solvent use, and energy production.<SEP>Water, represented by H2O, is the product of the reaction between hydrogen and oxygen, central to various natural processes and industrial applications.</data>
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|
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</node>
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<node id="Chemical Reaction">
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|
<data key="d0">Chemical Reaction</data>
|
|
<data key="d1">event</data>
|
|
<data key="d2">A chemical reaction involves the transformation of reactants into products through the breaking and forming of chemical bonds, exemplified by the synthesis of water from hydrogen and oxygen.<SEP>The reaction $ 2 H_2 + O_2 \rightarrow 2 H_2O $ represents the synthesis of water from hydrogen and oxygen gases. It is a balanced equation that follows the law of conservation of mass.</data>
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<node id="Fuel Cell Technology">
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<data key="d0">Fuel Cell Technology</data>
|
|
<data key="d1">category</data>
|
|
<data key="d2">Fuel cell technology utilizes the reaction between hydrogen and oxygen to generate electricity, producing water as a byproduct. It is a clean energy solution with applications in transportation and power generation.<SEP>Fuel cell technology utilizes the reaction between hydrogen and oxygen to generate electricity, producing water as a byproduct. It is relevant to clean energy and electrochemical applications discussed in the text.</data>
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<data key="d3">chunk-b4e4cd7fa61e43376573d164e2730e41<SEP>chunk-f931182732fe87eaa439fb34fe3e6445</data>
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<node id="Environmental Chemistry">
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<data key="d0">Environmental Chemistry</data>
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<data key="d1">category</data>
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<edge source="Mathematical Equation Analysis" target="Latex Format">
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<data key="d6">7.0</data>
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<edge source="Balanced Chemical Reaction" target="Hess's Law">
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<data key="d6">8.0</data>
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<data key="d7">The enthalpy change in the reaction is consistent with Hess's law, regardless of the reaction pathway.</data>
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<data key="d6">7.0</data>
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<data key="d7">The equation can be studied in terms of reaction kinetics to understand the rate of hydrogen combustion.</data>
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<data key="d8">kinetic analysis,reaction rates</data>
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<data key="d9">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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<data key="d6">9.0</data>
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<data key="d7">The reaction is exothermic, releasing energy, which is a key concept in enthalpy change.</data>
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<data key="d8">energy release,exothermic</data>
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<data key="d9">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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<edge source="Balanced Chemical Reaction" target="Synthesis Reaction">
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<data key="d6">8.0</data>
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<data key="d9">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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<edge source="Balanced Chemical Reaction" target="Rocket Propulsion">
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<data key="d6">8.0</data>
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<data key="d7">The reaction is used in rocket propulsion systems for its high energy output.</data>
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<data key="d9">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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<edge source="Balanced Chemical Reaction" target="Industrial Water Production">
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<data key="d6">7.0</data>
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<data key="d7">The reaction is employed in industrial settings to produce water on a large scale.</data>
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<data key="d8">industrial application,large-scale production</data>
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<data key="d9">chunk-3e43e1f14ec3bfe2ea1ec990e4a7a3dd</data>
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<data key="d10">氢气与氧气反应化学方程式.docx</data>
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<data key="d6">9.0</data>
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<data key="d7">The law of conservation of mass ensures that the total number of atoms remains unchanged during the reaction, validating its balance.</data>
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<data key="d8">chemical law,mass balance</data>
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<data key="d9">chunk-b4e4cd7fa61e43376573d164e2730e41</data>
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<data key="d7">Entity Reaction Kinetics belongs to Water Synthesis Reaction Equation (equation)</data>
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<data key="d6">8.0</data>
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<data key="d7">Both reaction kinetics and chemical thermodynamics analyze the hydrogen-oxygen reaction, with kinetics focusing on reaction speed and thermodynamics on energy changes and feasibility.</data>
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<data key="d9">chunk-f931182732fe87eaa439fb34fe3e6445</data>
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<data key="d7">Reaction kinetics defines the rate and mechanism of the water synthesis reaction based on molar proportions and activation energy.<SEP>Reaction kinetics studies how fast the chemical reaction between hydrogen and oxygen occurs under various conditions, influencing practical applications like engine design.</data>
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<data key="d8">chemical mechanism,practical application,rate analysis,reaction speed</data>
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<data key="d7">Rocket propulsion systems utilize the energy released from the chemical reaction between hydrogen and oxygen to generate thrust for space exploration vehicles.</data>
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<data key="d6">9.0</data>
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<data key="d7">Rocket engines use hydrogen gas as a high-energy fuel source in combination with oxygen for propulsion.</data>
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<data key="d7">Oxygen gas serves as the oxidizer in rocket propulsion systems that burn hydrogen fuel.</data>
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