Sodium reacts with chlorine gas to produce sodium chloride. Is this an example of a chemical or physical change? How do you know?

asked Feb 3, 2022 153k views

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No its a physical change .

when we put NaCl in water it takes Lattice energy as its a ionic compound and breaks down

$\\ \sf\longmapsto NaCl+Lattice\:Energy\longrightarrow Na^++Cl^-+Hydration\:Energy$

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