@ -16,170 +16,234 @@
<node id="Nitric Acid">
<data key="d0">Nitric Acid</data>
<data key="d1">category</data>
<data key="d2">Nitric acid (HNO₃) is a chemical compound involved in photodecomposition and reactions with iron oxide .</data>
<data key="d3">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<data key="d2">Nitric Acid (HNO₃) is a chemical compound involved in decomposition and reaction processes described in the text .</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d4">unknown_source</data>
<data key="d5">1752104774</data>
<data key="d5">1752193087</data>
</node>
<node id="Nitrogen Dioxide">
<data key="d0">Nitrogen Dioxide</data>
<data key="d1">category</data>
<data key="d2">Nitrogen Dioxide (NO₂) is a gas produced in the decomposition of Nitric Acid and reactions involving Nitric Acid.</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7</data>
<data key="d4">unknown_source</data>
<data key="d5">1752193087</data>
</node>
<node id="Oxygen">
<data key="d0">Oxygen</data>
<data key="d1">category</data>
<data key="d2">Oxygen (O₂) is a gas produced in the decomposition of Nitric Acid and involved in combustion reactions.</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7</data>
<data key="d4">unknown_source</data>
<data key="d5">1752193087</data>
</node>
<node id="Iron Oxide">
<data key="d0">Iron Oxide</data>
<data key="d1">category</data>
<data key="d2">Iron oxide (FeO) reacts with nitric acid under heating to produce iron nitrate, water, and nitrogen dioxide.</data>
<data key="d3">chunk-5fd997bf730fefbe622c9cec52b1d3db</data>
<data key="d2">Iron Oxide (FeO) is a chemical compound that reacts with Nitric Acid to produce Iron Nitrate, Hydrogen, and Nitrogen D ioxide.</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d4">unknown_source</data>
<data key="d5">1752104774</data>
<data key="d5">1752193087 </data>
</node>
<node id="Hydrogen">
<data key="d0">Hydrogen</data>
<node id="Iron Nitrate ">
<data key="d0">Iron Nitrate </data>
<data key="d1">category</data>
<data key="d2">Hydrogen (H₂) is a chemical element that reacts with oxygen in a combustion reaction to form water.</data>
<data key="d3">chunk-5fd997bf730fefbe622c9cec52b1d3db</data>
<data key="d2">Iron Nitrate (Fe(NO₃)₃) is a product of the reaction between Iron Oxide and Nitric Acid .</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d4">unknown_source</data>
<data key="d5">1752104774</data>
<data key="d5">1752193087 </data>
</node>
<node id="Oxy gen">
<data key="d0">Oxy gen</data>
<node id="Hydro gen">
<data key="d0">Hydro gen</data>
<data key="d1">category</data>
<data key="d2">Oxygen (O₂) is a chemical element involved in combustion reactions, such as with hydrogen to form water .</data>
<data key="d3">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<data key="d2">Hydrogen (H₂) is a gas produced in the reaction between Iron Oxide and Nitric Acid and involved in combustion reactions .</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d4">unknown_source</data>
<data key="d5">1752104774 </data>
<data key="d5">1752193087 </data>
</node>
<node id="Water">
<data key="d0">Water</data>
<data key="d1">category</data>
<data key="d2">Water (H₂O) is the product of the combustion reaction between hydrogen and o xygen.</data>
<data key="d3">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<data key="d2">Water (H₂O) is a product of the combustion reaction between Hydrogen and O xygen.</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d4">unknown_source</data>
<data key="d5">1752104774 </data>
<data key="d5">1752193087 </data>
</node>
<node id="Nitric Acid Photodecomposition ">
<data key="d0">Nitric Acid Photodecomposition </data>
<data key="d1">event </data>
<data key="d2">The chemical reaction where nitric acid decomposes under light to produce nitrogen dioxide, oxygen, and water .</data>
<data key="d3">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<node id="Nitric Acid (HNO₃) ">
<data key="d0">Nitric Acid (HNO₃) </data>
<data key="d1">category </data>
<data key="d2">A strong mineral acid involved in decomposition and redox reactions, producing nitrogen dioxide and oxygen when exposed to light or heat .</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d4">unknown_source</data>
<data key="d5">1752104774 </data>
<data key="d5">1752193087 </data>
</node>
<node id="Iron Oxide-Nitric Acid Reaction ">
<data key="d0">Iron Oxide-Nitric Acid Reaction </data>
<data key="d1">event </data>
<data key="d2">The chemical reaction where iron oxide reacts with nitric acid under heating to produce iron nitrate, water, and nitrogen dioxide .</data>
<data key="d3">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<node id="Nitrogen Dioxide (NO₂) ">
<data key="d0">Nitrogen Dioxide (NO₂) </data>
<data key="d1">category </data>
<data key="d2">A reddish-brown gas produced as a byproduct in nitric acid decomposition and iron oxide reactions .</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d4">unknown_source</data>
<data key="d5">1752104774 </data>
<data key="d5">1752193087 </data>
</node>
<node id="Hydrogen-Oxygen Combustion ">
<data key="d0">Hydrogen-Oxygen Combustion </data>
<data key="d1">event </data>
<data key="d2">The chemical reaction where hydrogen burns with oxygen to produce water .</data>
<data key="d3">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<node id="Oxygen (O₂) ">
<data key="d0">Oxygen (O₂) </data>
<data key="d1">category </data>
<data key="d2">A diatomic gas produced in nitric acid decomposition and consumed in hydrogen combustion .</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d4">unknown_source</data>
<data key="d5">1752104774 </data>
<data key="d5">1752193087 </data>
</node>
<node id="Nitrogen Dioxide ">
<data key="d0">Nitrogen Dioxide </data>
<node id="Iron Oxide (FeO) ">
<data key="d0">Iron Oxide (FeO) </data>
<data key="d1">category</data>
<data key="d2">NO₂ is a product of both nitric acid photodecomposition and iron oxide-nitric acid reactions .</data>
<data key="d3">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<data key="d2">A chemical compound that reacts with nitric acid to form iron nitrate, hydrogen gas, and nitrogen dioxide .</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d4">unknown_source</data>
<data key="d5">1752104774 </data>
<data key="d5">1752193087 </data>
</node>
<node id="Oxygen Gas ">
<data key="d0">Oxygen Gas </data>
<node id="Iron Nitrate (Fe(NO₃)₃) ">
<data key="d0">Iron Nitrate (Fe(NO₃)₃) </data>
<data key="d1">category</data>
<data key="d2">O₂ is produced in nitric acid photodecomposition and consumed in hydrogen-oxygen combustion .</data>
<data key="d3">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<data key="d2">The product formed when iron oxide reacts with nitric acid under heating conditions .</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d4">unknown_source</data>
<data key="d5">1752104774 </data>
<data key="d5">1752193087 </data>
</node>
<node id="Iron Nitrate ">
<data key="d0">Iron Nitrate </data>
<node id="Hydrogen (H₂) ">
<data key="d0">Hydrogen (H₂) </data>
<data key="d1">category</data>
<data key="d2">Fe(NO₃)₃ is produced in the reaction between iron oxide and nitric acid .</data>
<data key="d3">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<data key="d2">A flammable gas produced in iron oxide-nitric acid reactions and consumed in combustion with oxygen .</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d4">unknown_source</data>
<data key="d5">1752104774 </data>
<data key="d5">1752193087 </data>
</node>
<edge source="Nitric Acid" target="Iron Oxide">
<node id="Water (H₂O)">
<data key="d0">Water (H₂O)</data>
<data key="d1">category</data>
<data key="d2">The product of hydrogen combustion, formed when hydrogen reacts with oxygen.</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7</data>
<data key="d4">unknown_source</data>
<data key="d5">1752193087</data>
</node>
<node id="Light/Heat (Δ)">
<data key="d0">Light/Heat (Δ)</data>
<data key="d1">category</data>
<data key="d2">The energy input required for nitric acid decomposition and iron oxide reactions.</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7</data>
<data key="d4">unknown_source</data>
<data key="d5">1752193087</data>
</node>
<node id="Combustion">
<data key="d0">Combustion</data>
<data key="d1">event</data>
<data key="d2">A high-temperature exothermic reaction between hydrogen and oxygen producing water.</data>
<data key="d3">chunk-c944b40c845357549a25762357eaddc7</data>
<data key="d4">unknown_source</data>
<data key="d5">1752193087</data>
</node>
<edge source="Nitric Acid" target="Nitrogen Dioxide">
<data key="d6">9.0</data>
<data key="d7">Nitric Acid decomposes to produce Nitrogen Dioxide under light or heat.</data>
<data key="d8">chemical decomposition,gas production</data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7</data>
<data key="d10">unknown_source</data>
<data key="d11">1752193087</data>
</edge>
<edge source="Nitric Acid" target="Oxygen">
<data key="d6">8.0</data>
<data key="d7">Nitric acid reacts with iron oxide under heating to produce iron nitrate, water, and nitrogen dioxide.</data>
<data key="d8">chemical reaction,heating</data>
<data key="d9">chunk-5fd997bf730fefbe622c9cec52b1d3db</data>
<data key="d7">Nitric Acid decomposes to produce Oxygen gas under light or heat .</data>
<data key="d8">chemical decomposition,gas production </data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d10">unknown_source</data>
<data key="d11">1752104774</data>
<data key="d11">1752193087 </data>
</edge>
<edge source="Nitric Acid" target="Nitric Acid Photodecomposition">
<data key="d6">9.0</data>
<data key="d7">Nitric acid undergoes photodecomposition to produce nitrogen dioxide and oxygen.</data>
<data key="d8">chemical decomposition,light reaction</data>
<data key="d9">chunk-5fd997bf730fefbe622c9cec52b1d3db</data>
<edge source="Nitric Acid" target="Iron Oxide ">
<data key="d6">10 .0</data>
<data key="d7">Iron Oxide reacts with Nitric Acid to produce Iron Nitrate, Hydrogen, and Nitrogen Dioxide .</data>
<data key="d8">acid-base interaction,chemical reaction</data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d10">unknown_source</data>
<data key="d11">1752104774</data>
<data key="d11">1752193087 </data>
</edge>
<edge source="Iron Oxide" target="Iron Oxide-Nitric Acid Reaction">
<data key="d6">8.0</data>
<data key="d7">Iron oxide reacts with nitric acid under heating to form iron nitrate.</data>
<data key="d8">acid-base reaction,thermal decomposition</data>
<data key="d9">chunk-5fd997bf730fefbe622c9cec52b1d3db</data>
<edge source="Oxygen" target="Hydroge n">
<data key="d6">9 .0</data>
<data key="d7">Hydrogen combusts with Oxygen to produce Water .</data>
<data key="d8">combustion reaction,energy release </data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d10">unknown_source</data>
<data key="d11">1752104774</data>
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</edge>
<edge source="Hydrogen" target="Oxygen">
<edge source="Nitric Acid (HNO₃)" target="Light/Heat (Δ) ">
<data key="d6">9.0</data>
<data key="d7">Hydrogen and oxygen undergo a combustion reaction to form water.</data>
<data key="d8">chemical reaction,combustion</data>
<data key="d9">chunk-5fd997bf730fefbe622c9cec52b1d3db</data>
<data key="d7">Nitric acid requires light or heat energy to decompose into nitrogen dioxide and oxygen .</data>
<data key="d8">energy requirement,reaction condi tion</data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d10">unknown_source</data>
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</edge>
<edge source="Hydrogen" target="Hydrogen-Oxygen Combustion">
<edge source="Nitric Acid (HNO₃)" target="Nitrogen Dioxide (NO₂) ">
<data key="d6">10.0</data>
<data key="d7">Hydrogen combusts with oxygen to form water .</data>
<data key="d8">combustion,redox rea ction</data>
<data key="d9">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<data key="d7">Nitric acid decomposition produces nitrogen dioxide as a primary product .</data>
<data key="d8">chemical decomposition,gas produ ction</data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d10">unknown_source</data>
<data key="d11">1752104774 </data>
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</edge>
<edge source="Water" target="Hydrogen-Oxygen Combustion ">
<edge source="Nitric Acid (HNO₃)" target="Oxygen (O₂) ">
<data key="d6">9.0</data>
<data key="d7">Hydrogen-oxygen combustion produces water as the main product.</data>
<data key="d8">chemical synthesis,exothermic reaction</data>
<data key="d9">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<data key="d7">Nitric acid decomposition yields oxygen gas as a by product.</data>
<data key="d8">gas evolution,redox reaction</data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d10">unknown_source</data>
<data key="d11">1752104774 </data>
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</edge>
<edge source="Nitric Acid Photodecomposition" target="Nitrogen Dioxide ">
<data key="d6">7 .0</data>
<data key="d7">Nitric acid photodecomposition produces nitrogen dioxide as a product .</data>
<data key="d8">chemical product,gas evolution </data>
<data key="d9">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<edge source="Nitric Acid (HNO₃)" target="Iron Oxide (FeO) ">
<data key="d6">10 .0</data>
<data key="d7">Iron oxide reacts with nitric acid under heating conditions to produce multiple compounds .</data>
<data key="d8">acid-base reaction,redox process </data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d10">unknown_source</data>
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</edge>
<edge source="Nitric Acid Photodecomposition" target="Oxygen Gas ">
<data key="d6">8 .0</data>
<data key="d7">Nitric acid photodecomposition releases oxygen gas .</data>
<data key="d8">decomposition product,gas production </data>
<data key="d9">chunk-5fd997bf730fefbe622c9cec52b1d3db </data>
<edge source="Oxygen (O₂)" target="Hydrogen (H₂) ">
<data key="d6">10 .0</data>
<data key="d7">Hydrogen combusts with oxygen in an exothermic reaction to form water .</data>
<data key="d8">combustion,energy release </data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7 </data>
<data key="d10">unknown_source</data>
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</edge>
<edge source="Iron Oxide-Nitric Acid Reaction" target="Nitrogen Dioxide">
<data key="d6">7.0</data>
<data key="d7">The reaction between iron oxide and nitric acid produces nitrogen dioxide.</data>
<data key="d8">chemical byproduct,gas formation</data>
<data key="d9">chunk-5fd997bf730fefbe622c9cec52b1d3db</data>
<edge source="Oxygen (O₂)" target="Combustion">
<data key="d6">9.0</data>
<data key="d7">Oxygen acts as the oxidizer in the hydrogen combustion event.</data>
<data key="d8">oxidation,reaction partner</data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7</data>
<data key="d10">unknown_source</data>
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</edge>
<edge source="Iron Oxide (FeO)" target="Iron Nitrate (Fe(NO₃)₃)">
<data key="d6">9.0</data>
<data key="d7">Iron oxide transforms into iron nitrate through reaction with nitric acid.</data>
<data key="d8">chemical transformation,salt formation</data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7</data>
<data key="d10">unknown_source</data>
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</edge>
<edge source="Iron Oxide-Nitric Acid Reaction" target="Iron Nitrate">
<edge source="Iron Oxide (FeO)" target="Hydrogen (H₂) ">
<data key="d6">8.0</data>
<data key="d7">The reaction produces iron nitrate as a main product.</data>
<data key="d8">chemical synthesis,salt formation</data>
<data key="d9">chunk-5fd997bf730fefbe622c9cec52b1d3db</data>
<data key="d7">The reaction between iron oxide and nitric acid produces hydrogen gas.</data>
<data key="d8">gas production,redox byproduct</data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7</data>
<data key="d10">unknown_source</data>
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</edge>
<edge source="Hydrogen (H₂)" target="Combustion">
<data key="d6">9.0</data>
<data key="d7">Hydrogen participates as a fuel in the combustion event.</data>
<data key="d8">exothermic process,reactive component</data>
<data key="d9">chunk-c944b40c845357549a25762357eaddc7</data>
<data key="d10">unknown_source</data>
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