Required Practical: Preparation of a Soluble Salt (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes

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Required Practical: Preparation of a Soluble Salt
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What type of salt is prepared in this practical?

A soluble salt

What happens to insoluble salts in solution?

They precipitate out

Which insoluble metal base is used in this experiment?

Copper(II) oxide

What is the product salt formed in this reaction?

Copper(II) chloride

Why is the acid heated at the start?

To increase the reaction rate

How do you know when all the acid has reacted?

Excess CuO\text{CuO} remains undissolved

Why is the solution filtered after adding CuO\text{CuO}?

To remove unreacted excess CuO\text{CuO}

What happens when the filtered solution is heated in a water bath?

Water evaporates

What process occurs when the solution cools slowly?

Crystallisation

Why is excess copper(II) oxide used?

To neutralise all the acid

What are the products of the reaction between HCl\text{HCl} and CuO\text{CuO}?

CuCl2\text{CuCl}_2 and H2O\text{H}_2\text{O}

Explore OCR GCSE Chemistry A (Gateway Science Suite) Revision Notes by Topics

Reactivity of Metals

Reactions of Acids

Electrolysis

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Reactivity of Metals

Reactions of Acids

Electrolysis

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Reactivity of Metals

Reactions of Acids

Electrolysis

Explore OCR GCSE Chemistry A (Gateway Science Suite) Exam Questions by Topics

Reactivity of Metals

Reactions of Acids

Electrolysis

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