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What is formed when magnesium oxide reacts with hydrochloric acid?

Answer and explanation

Correct answer: Magnesium chloride and water

Magnesium oxide is a basic metal oxide, so it reacts with hydrochloric acid in a neutralisation reaction. The balanced equation is MgO + 2HCl → MgCl₂ + H₂O. Magnesium combines with chloride ions to form magnesium chloride, while the oxide ion combines with hydrogen ions to form water. No sulphate, sodium or carbonate is present, so the other products are not possible.

Related tags

Metal-OxideMagnesium-OxideHydrochloric-AcidNeutralisationSalt-WaterAcidsBasesAnd SaltsAcids Bases And SaltsChemical Substances – Nature And Behaviour

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