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Message: <blockquote data-quote="hancok" data-source="post: 23681819" data-attributes="member: 119642"><p><span style="font-size: 15px">The ration heater contains finely powdered magnesium metal, alloyed with a small amount of iron, and table salt. To activate the reaction, a small amount of water is added, and the boiling point of water is quickly reached as the reaction proceeds.</span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px">Chemical reaction</span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px">Ration heaters generate heat in an electron-transfer process called an oxidation-reduction reaction. Water oxidizes magnesium metal, according to the following chemical reaction:</span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px">Mg + 2H2O → Mg(OH)2 + H2 [+ heat (q)]</span></p><p><span style="font-size: 15px"></span></p><p><span style="font-size: 15px">This reaction is analogous to iron being rusted by oxygen, and proceeds at about the same slow rate, which is too slow to generate usable heat. To accelerate the reaction, metallic iron particles and table salt (NaCl) are mixed with the magnesium particles.</span></p></blockquote><p></p>

Verification: Hathara warak wissa keeyada? (Hathara wadi karanna 20)

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