Learning objective

Clarify the definition of a hydrated substance as one that is chemically bonded with water, and an anhydrous substance as one that contains no water.

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Exam focus

Cambridge IGCSE ChemistryAcids, bases and saltsCore content

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Quick explanation

This point belongs to Preparation of salts, especially Preparation of salts outcomes.
You need to be able to clarify the definition of a hydrated substance as one that is chemically bonded with water, and an anhydrous substance as one that contains no water.
The key ideas to know are Define, Explain, and Identify.
Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

DefineExplainIdentify

Why it matters

This objective helps connect Preparation of salts outcomes to exam-style questions, flashcards, and revision notes for Preparation of salts.

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Practice Questions7 linked questions

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Paper 3Theory (Core)1 marks

Description

Hydrated substances contain water molecules chemically bonded to them, while anhydrous substances do not contain any water.

a
State the definition of a hydrated substance.
Your answer
Aim for approximately 1 distinct marking point.
[1]

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