Chemical ChangesHigh Exam FrequencyAQA

Making Salts

Revise Making Salts in Chemical Changes for GCSE Chemistry with 20 exam-style questions and 20 flashcards. This is a high-frequency exam topic, so students should expect to explain it clearly under timed conditions.

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The Art of Crystal Growing

Introduction 2

Three Methods of Making Salts

Diagram 3

Deep Dive: Choosing the Right Method

Deep Dive 4

How It Works: The Practical Method for Making Pure, Dry Salt Crystals

How It Works 5

Required Practical: Preparing a Pure, Dry Sample of a Soluble Salt

Practical 6

Key Facts: Solubility Rules

Key Facts 7

Making Insoluble Salts by Precipitation

How It Works 8

Key Definitions

Definitions 9

Common Misconceptions

Misconceptions 10

Memory Aids

Memory Aid 11

Exam Focus

Exam Focus 12

Exam Tips for Making Salts

Exam Tips 13

Topic Summary: Making Salts

Summary

Sample Flashcards

What is crystallisation?

The process of forming solid crystals from a saturated solution

What colour is copper sulfate?

Blue (as crystals and in solution)

Sample Questions

Which of the following is the correct method for making copper sulfate crystals from copper oxide and sulfuric acid?

A. Add excess copper oxide to acid, filter off unreacted solid, then evaporate to crystallise
B. Add excess acid to copper oxide, then boil to dryness
C. Use titration with an indicator to find the exact volumes, then repeat
D. Mix equal volumes of copper sulfate solution and sulfuric acid

1 markfoundation

Describe the steps involved in the required practical for preparing a pure, dry sample of copper sulfate crystals from copper oxide and dilute sulfuric acid.

4 marksstandard

exam-style questions

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