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Edexcel IGCSE Chemistry 3.1 exothermic and endothermic changes

Practise exothermic and endothermic questions by using temperature changes, reaction statements and neutralisation graphs.

Syllabus
First assessment 2019
Course
Chemistry 4CH1

Exam points

  • State that exothermic reactions release heat energy to the surroundings.
  • Use temperature rises or falls in tables to decide exothermic or endothermic change.
  • Explain neutralisation temperature graphs using the maximum temperature point.

3.1 Exothermic and endothermic changes question 1

[Maximum number: 1]

The teacher demonstrates the reaction between aluminium and iron(III) oxide.

Figure for Question 3.1 Exothermic and endothermic changes question 1 — Edexcel IGCSE Chemistry

The teacher ignites the magnesium fuse. A very exothermic reaction then occurs between aluminium powder and iron(III) oxide.

The products of the reaction are iron and aluminium oxide.

State what is meant by the term exothermic.

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