What is a salt?An ionic compound containing a metal part and a non-metal partA covalent compound containing a metal part and a non-metal partA covalent compound containing two non-metal partsAn ionic compound containing two metal parts2Which of the following salts is insoluble?Magnesium hydroxideSodium carbonateAmmonium nitratePotassium chloride3Which of the following is not a precipitation reaction?Sodium hydroxide (aq) + magnesium nitrate (aq) → magnesium hydroxide (s) + sodium nitrate (aq)Lead nitrate (aq) + sodium chloride (aq) → lead chloride (s) + sodium nitrate (aq)Copper sulfate (aq) + sodium carbonate (aq) → copper carbonate (s) + sodium sulfate (aq)Ammonium chloride (aq) + potassium hydroxide (aq) → ammonium hydroxide (aq) + potassium chloride (aq)4Which method can be used to separate an insoluble salt from a soluble salt solution following a precipitation reaction?ChromatographySimple distillationFiltrationFractional distillation5Why is distilled water added to the insoluble salt in the filter paper?To ensure all the soluble salt has been removedTo dilute the insoluble saltTo add ions to the insoluble saltTo dissolve the insoluble salt
Question
What is a salt?An ionic compound containing a metal part and a non-metal partA covalent compound containing a metal part and a non-metal partA covalent compound containing two non-metal partsAn ionic compound containing two metal parts2Which of the following salts is insoluble?Magnesium hydroxideSodium carbonateAmmonium nitratePotassium chloride3Which of the following is not a precipitation reaction?Sodium hydroxide (aq) + magnesium nitrate (aq) → magnesium hydroxide (s) + sodium nitrate (aq)Lead nitrate (aq) + sodium chloride (aq) → lead chloride (s) + sodium nitrate (aq)Copper sulfate (aq) + sodium carbonate (aq) → copper carbonate (s) + sodium sulfate (aq)Ammonium chloride (aq) + potassium hydroxide (aq) → ammonium hydroxide (aq) + potassium chloride (aq)4Which method can be used to separate an insoluble salt from a soluble salt solution following a precipitation reaction?ChromatographySimple distillationFiltrationFractional distillation5Why is distilled water added to the insoluble salt in the filter paper?To ensure all the soluble salt has been removedTo dilute the insoluble saltTo add ions to the insoluble saltTo dissolve the insoluble salt
Solution
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A salt is an ionic compound containing a metal part and a non-metal part.
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Among the given options, Magnesium hydroxide is an insoluble salt.
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The reaction between Ammonium chloride (aq) and potassium hydroxide (aq) is not a precipitation reaction as it does not result in the formation of a solid (precipitate).
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Filtration is the method that can be used to separate an insoluble salt from a soluble salt solution following a precipitation reaction.
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Distilled water is added to the insoluble salt in the filter paper to ensure all the soluble salt has been removed.
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