Rusting is a chemical reaction between iron and oxygen. over time, the mass of a rusting nail
gradually increases. does this mean that this chemical reaction does not obey the law of
conservation of mass? explain.

Yes this chemical reaction obeys the laws of physics. Its very simple, let me explain.

Explanation:

When Iron(Fe) oxidizes it gains three oxygen atoms so it reacts to form Fe2O3 so it becomes bigger or explands. Its also sometimes called "oxide jacking".

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explanation:

i think

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