logo

Cambridge IGCSE Combined Science practice

Paper 6 structured question: Exothermic and endothermic reactions

Try the question first, then check the answer and practise the same topic again.

Attempt questionExothermic and endothermic reactions revisionRevise the key idea

At a glance

6

Paper

1

Marks

Topic

Exothermic and endothermic reactions

Exam-style question

Try this first

Paper 6Alternative to PracticalPractical1 marks

Investigating the energy changes in chemical reactions.

Method

Investigating Exothermic and Endothermic Reactions

You are required to design an experiment to investigate the energy changes in exothermic and endothermic reactions. Identify the variables involved in your experiment.

  1. a

    State Identify the independent variable in your experiment.

    Aim for approximately 1 distinct marking point.

    [1]

0 of 1 part answered

Answer every part before opening the mark scheme.

Common mistake

No common mistake is linked to this question yet.

Related flashcards

Flashcard 1 of 6

Press Space to flip, arrows to move

Related practice questions

Question 1 of 5

Choose an answer, get feedback, then move sideways through the set.

0 of 4 attempted

Paper 6 structured question: Exothermic and endothermic reactions

Paper 6Alternative to PracticalPractical2 marks

Results Table

Energy Changes in Reactions

The table below shows the energy changes for various reactions.

ReactionEnergy Change (kJ/mol)
Reaction A-150
Reaction B+50
Reaction C-200
Reaction D+100
  1. a

    Explain Based on the table, identify which reactions are exothermic and which are endothermic.

    Aim for approximately 2 distinct marking points.

    [2]