Lesson 5.5.1.1
5.5.1.1 Energy transfer during exothermic and endothermic reactions Quiz: AQA Combined Science, Unit 12
20 questions
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Lesson 5.5.1.1, Energy transfer during exothermic and endothermic reactions: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 12: Energy changes, written with Revision Ninja.
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The 20 questions
-
What happens to the temperature of the surroundings during an exothermic reaction?
- It stays constant
- It decreases
- It increases
- It fluctuates
-
In an endothermic reaction, what happens to the temperature of the surroundings?
- It stays constant
- It increases
- It decreases
- It doubles
-
Which of these is an example of an exothermic reaction?
- Photosynthesis
- Dissolving ammonium nitrate
- Combustion
- Thermal decomposition
-
Which of these is an endothermic reaction?
- Oxidation of metals
- Combustion
- Neutralisation
- Thermal decomposition
-
Which device is an everyday use of an exothermic reaction?
- Fridge
- Sports cold pack
- Hand warmer
- Ice pack
-
Which device is an everyday use of an endothermic reaction?
- Self-heating can
- Sports cold pack
- Hand warmer
- Toaster
-
In an exothermic reaction, how does the energy of the products compare to the reactants?
- Higher energy
- Zero energy
- Lower energy
- Equal energy
-
What happens to the total amount of energy in the universe during a chemical reaction?
- It increases
- It decreases
- It is destroyed
- It is conserved
-
What property is measured to distinguish exothermic from endothermic reactions?
- Temperature change
- Mass change
- Pressure change
- Volume change
-
Which required practical investigates temperature changes in reacting solutions?
- Required practical 4
- Required practical 9
- Required practical 10
- Required practical 8
-
Which term describes a reaction that transfers energy to the surroundings?
- Catalysed
- Endothermic
- Exothermic
- Decomposed
-
Which chemical reaction type is always exothermic?
- Photosynthesis
- Combustion
- Thermal decomposition
- Electrolysis
-
Why do chemical hand warmers become warm during use?
- Endothermic reaction
- Electrical resistance
- Friction heating
- Exothermic reaction
-
What happens to the temperature of the surroundings during thermal decomposition?
- Increases
- Fluctuates
- Decreases
- Stays constant
-
During an endothermic reaction, how does the energy of the products compare to the reactants?
- Lower
- Equal
- Higher
- Zero
-
A reaction mixture rises from 20 C to 32 C. What type of reaction has occurred?
- Photochemical
- Endothermic
- Thermal decomposition
- Exothermic
-
A solution falls from 22 C to 15 C during a reaction. What type of reaction is this?
- Neutral
- Catalysed
- Exothermic
- Endothermic
-
Compared to the reactants, what do the products of an exothermic reaction possess less of?
- Total atoms
- Total mass
- Chemical energy
- Nuclear energy
-
What is broken during a chemical reaction that requires energy to be supplied?
- Atomic nuclei
- Product molecules
- Chemical bonds
- Surrounding heat
-
What type of reaction causes a temperature fall in the surroundings?
- Combustion
- Endothermic
- Exothermic
- Neutralisation
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