Explanation:
The thermite reaction involves aluminum powder reacting with iron(III) oxide to produce molten iron and aluminum oxide (2Al + Fe₂O₃ → Al₂O₃ + 2Fe). It is highly exothermic and is used for welding railway tracks and repairing metal structures in the field.
Explanation:
Oxidation is loss of electrons, increase in oxidation number, or gain of oxygen/loss of hydrogen. Reduction is gain of electrons. Mnemonic: OIL RIG (Oxidation Is Loss, Reduction Is Gain).
Explanation:
Amorphous solids like glass do not have a sharp melting point; they soften over a range of temperatures. Crystalline solids have sharp melting points and long-range order. Glass is an insulator.
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