GCSE Chemistry – Endothermic and exothermic reactions – Primrose Kitten

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GCSE Chemistry – Endothermic and exothermic reactions

Last updated: 08/07/2020

CCEA GCSE Science – Combined science higher Energy changes in chemistry GCSE Chemistry – Endothermic and exothermic reactions

Learning Objectives

-I can define the terms “exothermic” and “endothermic”

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Question 1 of 18

1. Question
What is the definition of an endothermic reaction?
- A reaction where the energy is transferred to the reacting substances from their surroundings
- A reaction where the energy is transferred from the reacting substances and to their surroundings
- A reaction where the energy is transferred from the reacting substances to the products formed
- A reaction where the energy is transferred to the reacting substances from the products formed
Correct

Incorrect
Question 2 of 18

2. Question
What is the definition of an exothermic reaction?
- A reaction where the energy is transferred from the reacting substances and to their surroundings
- A reaction where the energy is transferred to the reacting substances from their surroundings
- A reaction where the energy is transferred from the reacting substances to the products formed
- A reaction where the energy is transferred to the reacting substances from the products formed
Correct

Incorrect
Question 3 of 18

3. Question
Describe the temperature change of an endothermic reaction.
- Temperature decrease
- Temperature increase
- Temperature stays the same
- Temperature change depends on the reactants
Correct

Incorrect
Question 4 of 18

4. Question
Describe the temperature change of an exothermic reaction.
- Temperature increase
- Temperature decrease
- Temperature stays the same
- Temperature change depends on the reactants
Correct

Incorrect
Question 5 of 18

5. Question
Describe the energy transfer taking place for an endothermic reaction.
- Energy is taken in
- Energy is given out
- Energy is created
- Energy is destroyed
Correct

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Question 6 of 18

6. Question
Describe the energy transfer taking place for an exothermic reaction.
- Energy is given out
- Energy is taken in
- Energy is created
- Energy is destroyed
Correct

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Question 7 of 18

7. Question
Describe the energy of the reactants compared to the products for an endothermic reaction.
- Reactants have less energy than the products
- Reactants have more energy than the products
- Reactants and products have the same amounts of energy
- There is no relationship between the two
Correct

Incorrect
Question 8 of 18

8. Question
Describe the energy of the products compared to the reactants for an endothermic reaction.
- Products have more energy than the reactants
- Products have less energy than the reactants
- Products and reactants have the same amounts of energy
- There is no relationship between the two
Correct

Incorrect
Question 9 of 18

9. Question
Describe the energy of the reactants compared to the products for an exothermic reaction.
- Reactants have more energy than the products
- Reactants have less energy than the products
- Reactants and products have the same amounts of energy
- There is no relationship between the two
Correct

Incorrect
Question 10 of 18

10. Question
Describe the energy of the products compared to the reactants for an exothermic reaction.
- Products have less energy than the reactants
- Products have more energy than the reactants
- Products and reactants have the same amounts of energy
- There is no relationship between the two
Correct

Incorrect
Question 11 of 18

11. Question
What are the units for energy change?
- kJ/mol
- kJ/g
- mol/kJ
- g/kJ
Correct

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Question 12 of 18

12. Question
Which of the following are an example of an endothermic reaction?
- Reaction between citric acid and sodium hydrogencarbonate
- Neutralisation reactions
- Combustion
- Burning of fuels
Correct

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Question 13 of 18

13. Question
Which of the following are an example of an endothermic reaction?
- Thermal decomposition
- Neutralisation reactions
- Combustion
- Burning of fuels
Correct

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Question 14 of 18

14. Question
Which of the following are an example of an exothermic reaction?
- Burning of fuels
- Thermal decomposition
- Reaction between citric acid and sodium hydrogencarbonate
- Oxidation
Correct

Incorrect
Question 15 of 18

15. Question
Which of the following are an example of an exothermic reaction?
- Combustion
- Reduction
- Reaction between citric acid and sodium hydrogencarbonate
- Thermal decomposition
Correct

Incorrect
Question 16 of 18

16. Question
Which of the following are an example of an exothermic reaction?
- Neutralisation reactions
- Reduction
- Thermal decomposition
- Reaction between citric acid and sodium hydrogencarbonate
Correct

Incorrect
Question 17 of 18

17. Question
Which type of energy change takes place within chemical hand/body warmers?
- Exothermic energy change
- Endothermic energy change
- Both an exothermic and endothermic energy change
- Neither an exothermic or endothermic energy change
Correct

Incorrect
Question 18 of 18

18. Question
Which type of energy change takes place within chemical cold packs?
- Endothermic energy change
- Exothermic energy change
- Both an exothermic and endothermic energy change
- Neither an exothermic or endothermic energy change
Correct

Incorrect

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