The Energy Change of Reactions (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
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12 questions from this quiz
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Practise the questions
12 questions from this quiz
What does the principle of conservation of energy state?
What does the principle of conservation of energy state?
Energy cannot be created or destroyed
In energy change reactions, what is the 'system'?
In energy change reactions, what is the 'system'?
The chemical reaction being studied
In exothermic reactions, how does the energy in reactants compare to products?
In exothermic reactions, how does the energy in reactants compare to products?
Energy in reactants products
What happens to the temperature of the surroundings during an exothermic reaction?
What happens to the temperature of the surroundings during an exothermic reaction?
Temperature increases
Which are examples of exothermic reactions?
Which are examples of exothermic reactions?
Combustion and neutralisation
In endothermic reactions, how does the energy in products compare to reactants?
In endothermic reactions, how does the energy in products compare to reactants?
Energy in products reactants
What happens to the temperature of the surroundings during an endothermic reaction?
What happens to the temperature of the surroundings during an endothermic reaction?
Temperature decreases
Which are examples of endothermic reactions?
Which are examples of endothermic reactions?
Photosynthesis and decomposition
What happens to energy when a chemical bond is broken?
What happens to energy when a chemical bond is broken?
Energy is absorbed
What happens to energy when a chemical bond is made?
What happens to energy when a chemical bond is made?
Energy is released
If the energy change for a reaction is negative, what type of reaction is it?
If the energy change for a reaction is negative, what type of reaction is it?
Exothermic
If the energy change for a reaction is positive, what type of reaction is it?
If the energy change for a reaction is positive, what type of reaction is it?
Endothermic