In the core practical ‘Making soluble salts’, copper oxide is added to sulfuric acid and heated. What are the products of this reaction?Copper sulfate + water + carbon dioxideCopper sulfate + hydrogenCopper sulfate + waterCopper sulfate only2In the core practical ‘Making soluble salts’, how do we ensure that all the acid completely reacts?By heating the solutionBy filtering the solutionBy adding excess copper oxideBy stirring the solution3In this practical, why is the mixture filtered once the reaction has completed?To remove excess copper oxideTo remove impuritiesTo remove excess copper sulfateTo remove the water4After filtration, why is the remaining salt solution heated?To evaporate the water from the solutionTo make the solution turn blueTo ensure the reaction has completedTo remove hydrogen gas from the solution5After heating, what would you expect to observe as the hot saturated solution begins to cool?Solution changes from clear to blueFormation of blue crystalsBubbling/fizzing in solutionFormation of white crystals
Question
In the core practical ‘Making soluble salts’, copper oxide is added to sulfuric acid and heated. What are the products of this reaction?Copper sulfate + water + carbon dioxideCopper sulfate + hydrogenCopper sulfate + waterCopper sulfate only2In the core practical ‘Making soluble salts’, how do we ensure that all the acid completely reacts?By heating the solutionBy filtering the solutionBy adding excess copper oxideBy stirring the solution3In this practical, why is the mixture filtered once the reaction has completed?To remove excess copper oxideTo remove impuritiesTo remove excess copper sulfateTo remove the water4After filtration, why is the remaining salt solution heated?To evaporate the water from the solutionTo make the solution turn blueTo ensure the reaction has completedTo remove hydrogen gas from the solution5After heating, what would you expect to observe as the hot saturated solution begins to cool?Solution changes from clear to blueFormation of blue crystalsBubbling/fizzing in solutionFormation of white crystals
Solution
The text you provided seems to be a set of multiple-choice questions related to a chemistry practical experiment. Here are the answers:
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The products of the reaction between copper oxide and sulfuric acid are Copper sulfate and water. So, the correct answer is "Copper sulfate + water".
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To ensure that all the acid completely reacts, you would add excess copper oxide. So, the correct answer is "By adding excess copper oxide".
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The mixture is filtered once the reaction has completed to remove excess copper oxide. So, the correct answer is "To remove excess copper oxide".
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The remaining salt solution is heated to evaporate the water from the solution. So, the correct answer is "To evaporate the water from the solution".
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As the hot saturated solution begins to cool, you would expect the formation of blue crystals. So, the correct answer is "Formation of blue crystals".
Similar Questions
In the required practical ‘Making soluble salts’, copper oxide is added to sulfuric acid and heated. What are the products of this reaction?Copper sulfate + water + carbon dioxideCopper sulfate + waterCopper sulfate onlyCopper sulfate + hydrogen
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