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a colour change, a gas produced or a precipitate (new substance/solid) formed.

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14y ago

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No. It is a physical process, so it technically isn't a reaction.


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The chemical change in this reaction is a double displacement reaction where magnesium nitrate (Mg(NO3)2) reacts with sodium hydroxide (NaOH) to form magnesium hydroxide (Mg(OH)2) and sodium nitrate (NaNO3). The cations and anions in the reactants switch partners to form new compounds.


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Fire.