Endothermic reactions (AQA GCSE Chemistry Combined Science): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What happens to energy in an endothermic reaction?
What happens to energy in an endothermic reaction?
Energy is taken in from surroundings
What does the prefix 'endo' mean in endothermic?
What does the prefix 'endo' mean in endothermic?
In or inside
What is the most reliable sign of an endothermic reaction?
What is the most reliable sign of an endothermic reaction?
The surroundings become cooler
How does the energy of products compare to reactants in an endothermic reaction?
How does the energy of products compare to reactants in an endothermic reaction?
Products have more energy
What happens to the surroundings during an endothermic reaction?
What happens to the surroundings during an endothermic reaction?
They lose energy and get cooler
On an energy diagram, where are products in an endothermic reaction?
On an energy diagram, where are products in an endothermic reaction?
Higher up than reactants
What happens when calcium carbonate undergoes thermal decomposition?
What happens when calcium carbonate undergoes thermal decomposition?
It forms calcium oxide and
What is the reaction between citric acid and sodium hydrogen carbonate used for?
What is the reaction between citric acid and sodium hydrogen carbonate used for?
Instant cold packs
What are the two compartments in an instant cold pack?
What are the two compartments in an instant cold pack?
Water and a chemical
By how much can the temperature drop in an instant cold pack?
By how much can the temperature drop in an instant cold pack?
10-15°C